The periodic chart has many different types of elements. Some elements are metals, some are nonmetals, and yet others are metalloids. Therefore, ductility is the property of metals that explains the given phenomenon.
What is metal?Metals are hard, conduct electricity, are ductile, lustrous, and malleable materials. Since metals have free electrons that's why they can conduct electricity. Since atoms in metals are very closely packed in a definite crystal solid. It is not brittle that is it can not be broken down easily.
If a strong force acts on the metal towers of the suspension bridge, the towers will not break into pieces, like glass would, but will bend instead. Ductility is the property of metals that explains the given phenomenon.
Therefore, ductility is the property of metals that explains the given phenomenon.
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The unheated gas in the above system has a volume of 20.0L
at a temperature of 25.0 °C and a pressure of 1.00 atm. The
gas is heated to a temperature of 100.0 °C while the volume
remains constant. What is the pressure of the heated gas?
Ignore the block labeled "A".
da Hint?
Answer:
need more info on block labeled ''A''
Explanation:
HOW TO DO THIS QUESTION PLEASE
Answer:
-mass number
-Iodine was placed after tellurium because it has a lower atomic mass
Is it true that only 2 ATP are formed during anaerobic respiration?
Pyruvate is converted to lactate in anaerobic conditions by anaerobic glycolysis. During anaerobic respiration, two ATP molecules are produced.
What is the primary step in glycolysis?
The method by which glucose is metabolized to produce energy is known as glycolysis. It generates water, ATP, NADH, and two pyruvate molecules. It doesn't need oxygen to happen because it happens in a cell's cytoplasm. Both in aerobic and anaerobic organisms, it happens.
How is glycolysis referred to?
Gustav Embden, Otto Meyerhof, & Jakub Karol Parnas identified the Embden-Meyerhof-Parnas (EMP) pathway, which is the most typical kind of glycolysis. The Entner-Doudoroff pathway and several heterofermentative & homofermentative pathways are examples of additional pathways that are included in the term "glycolysis."
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In anaerobic circumstances, anaerobic glycolysis converts pyruvate to lactate. Two ATP molecules are created during anaerobic respiration.
What is the first stage of glycolysis?The process of converting glucose into energy is known as glycolysis. Water, ATP, NADH, and two pyruvate molecules are produced. It does not require oxygen to occur since it occurs in the cytoplasm of a cell. It occurs in both aerobic and anaerobic species.
How is glycolysis defined?The Embden-Meyerhof-Parnas (EMP) route, which is the most common kind of glycolysis, was discovered by Gustav Embden, Otto Meyerhof, and Jakub Karol Parnas. Additional processes included in the word "glycolysis" include the Entner-Doudoroff pathway and numerous heterofermentative and homofermentative pathways.
Here,
Anaerobic glycolysis converts pyruvate to lactate under anaerobic conditions. During anaerobic respiration, two ATP molecules are produced.
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What is the mass in grams of 6.02 x10 23 N 2 molecules?
The mass in grams of 6.02×[tex]10^{23}[/tex] N2 molecules is 9.24×[tex]10^{23}[/tex] gram.
This is because each molecule of N2 is composed of two atoms of nitrogen, which each have a mass of 14.0067 grams.
Thus, the total mass of 6.022×[tex]10^{23}[/tex] N2 molecules is calculated by multiplying the number of molecules by the mass of each molecule, which is 28.0134 grams.
14.0067×2=28.013grams
This gives us a total mass of
6.02×1023×28.0134=9.24×[tex]10^{23}[/tex] grams
Molar mass:
Molar mass is the mass of one mole of a substance. It is expressed in grams per mole (g/mol). It is calculated by adding up the atomic weights of all the atoms in a molecule or formula unit of a compound. It is a useful measure when calculating the mass of a substance, or when calculating stoichiometric ratios in a chemical reaction.
Therefore the mass of 6.022×[tex]10^{23}[/tex] N2 molecule is 9.24×[tex]10^{23}[/tex]grams.
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Why is bromine the most reactive?
Being a highly chemically reactive metal having seven valence electrons and even a high attraction for electrons, bromine reacts quickly as well as violently with alkali metals, therefore is rarely found in nature pure.
Despite being a potent oxidizer, it is difficult to break down under typical circumstances. Fluorine was the strongest active halogen, followed by chlorine, bromine, as well as iodine.
Since bromine has a higher atomic radius over chlorine, it is much less reactive. Compared to chlorine, bromine does not hold electrons as tightly. This is supported by the fact that chlorine contains fewer electron shells, which causes the electrons to connect nearer to the nucleus.
Due to its lower reactivity, the bromine radical is so much more selective for such 2° radical. Cl• is much less picky and less selective since it is less stable as well as more reactive.
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why was the bohr model replaced
To solve this we must be knowing each and every concept related to atom. Therefore, Bohr's model was abandoned since it lacked explanatory, descriptive, and predictive ability.
What is atom?Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit.
In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge. Neutron is neutral that is it has no charge. Bohr's model was abandoned in favor of the quantum mechanical model since it lacked explanatory, descriptive, and predictive ability.
Therefore, Bohr's model was abandoned since it lacked explanatory, descriptive, and predictive ability.
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Among the following radioactive parent isotopes, which has the shortest half-life?A) uranium-238B) potassium-40C) rubidium-87D) carbon-14
The half-life of a radioactive isotope is the time it takes for half of the original number of atoms in a sample to decay.
The isotope with the shortest half-life among the given options is:
D) carbon-14
The half-life of carbon-14 is 5,730 years which is shorter than the other isotopes. Uranium-238 has a half-life of 4.5 billion years, potassium-40 has a half-life of 1.25 billion years and rubidium-87 has a half-life of 49.8 billion years, all are greater than the half-life of carbon-14.
So, carbon-14 is the isotope with the shortest half-life among the given options.
It is important to note that the half-life of an isotope is a constant property of the isotope. For example, the half-life of carbon-14 is always 5,730 years and does not change with the amount of carbon-14 present or any other factors.
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Select the correct answer.
How does activation energy affect a chemical reaction?
A. It increases the energy of the reactants.
B. It determines how difficult it is to start the reaction.
C. It determines how much product can form,
D. It decreases the energy of the products,
Answer:
The source of the activation energy needed to push reactions forward is typically heat energy from the surroundings.
Explanation:
The activation energy of a particular reaction determines the rate at which it will proceed. The higher the activation energy, the slower the chemical reaction will be
The pressure of a 5.2mol sample of C3H8 in a 35.3 L container is measured to be 5.5 atm. What is the temperature of this gas in kelvins?
Answer:
T° = 453.6 K
Explanation:
Let's apply the Ideal Gases Law to solve the question:
Pressure . Volume = number of moles . R . T°
We replace data:
5.5 atm . 35.3L = 5.2 mol . 0.082 L.atm/mol.K .T°
T° = (5.5 atm . 35.3L) / (5.2 mol . 0.082 L.atm/mol.K)
T° = 453.6 K
The Ideal Gases Law contains the Absolute value of T° (Kelvin degrees)
So the final answer is: 453.6 K
You can also determine this, because the unit of R (Ideal Gases constant)
what are local winds. be more detailed. and in your own words
Answer:
High and low pressure regions form when there is a large temperature difference between the surface of the sea (or a large lake) and the land next to it. Local winds are created as a result of this. Warmer air from the ocean rises and then sinks on land, causing the temperature to rise over the land.
The highest pressure measured in Jupiter's upper atmosphere by the Galileo probe is ×1.67104torr. Calculate the highest pressure measured in mmHg and atm. Round each of your answers to 3 significant digits.
Answer: 16700 mmHg , 22,0 atm
Explanation: 1 torr = 1 mmHg, so p = 16700 torr = 16700 mmHg
1 atm = 101325 Pa = 760 torr
16700 torr / 760 = 21,97 atm
Why do you think seasons last for different amounts of time on different planets? *
A : They are far away from the Sun B: They have different orbits around the Sun C: They are different temperatures D: They are in different solar systems ?
Here's link[tex]^{}[/tex] to the answer:
bit.[tex]^{}[/tex]ly/3gVQKw3
Answer:
B
Explanation:
Select the correct answer. the zeroth law of thermodynamics describes the state where we can say what about the movement of heat between two substances?
a. the latent heat is increasing
b. the movement of heat is rapid
c. there is no movement of heat
d. the latent heat is decreasing
e. the movement of heat is slow
The zeroth law of thermodynamics describes the state where we can say what about the movement of heat between two substances
The Zeroth Law of thermodynamics is a basic law that describes the state in which two bodies are in thermal equilibrium. It states that if two bodies are in thermal equilibrium with a third body, then they are in thermal equilibrium with each other. In other words, it allows us to determine if two bodies are at the same temperature and if there is no heat flow between them. So, it describes the state where there is no movement of heat between two substances.
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Why were the authors interested in determining the strength of the hydrogen bond in solution as opposed to in a vacuum
This is because intermolecular forces have a greater effect in a solution when bonding is present than in a vacuum when bonding is not present.
The attracting and repellent forces that develop between the molecules of a substance are known as intermolecular forces or IMF for short. Individual molecules of a substance interact with one another through the mediation of these forces.
Most of the physical and chemical features of matter are caused by intermolecular forces.
An intermolecular force is an attractive force that develops between the protons or positive parts of one molecule and the electrons or negative parts of another molecule. This force affects a substance's many physical and chemical properties. The strength of a material's intermolecular forces directly relates to the boiling point of that substance; the stronger the intermolecular forces, the higher the boiling point.
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4 The Mr of sodium hydroxide is 40. How many grams of sodium hydroxide are there in: a 500 cm³ of a molar solution? b 25 cm³ of a 0.5 M solution?
There are 20 grams of Sodium hydroxide in a molar solution that has a volume of 500 cm3.
Sodium hydroxide – what is it? (NaOH)Caustic soda and lye are two other names for sodium hydroxide. It is a typical component of soaps and cleansers. Sodium hydroxide seems to be a white, unscented solid at room temperature. Sodium hydroxide is a colorless, odorless liquid. Strong acids and water can cause explosive reactions with it.
Molarity is calculated by
moles (solute) / volume of solution in L
No. of moles = mass / molar mass
We have to find mass of sodium hydroxide (NaOH)
As we know, in 1 L (1000 cm³) of molar solution there is 40 gram of NaOH present.
From using this statement, 500 cm³ of a molar solution, means half liter of a molar solution contain -
= 40 / 2
= 20 gram of NaOH.
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Diatomic elements are important. what makes them different from other elemental substances?
Diatomic elements are elements that exist as molecules composed of two atoms of the same element.
What is Diatomic?Diatomic molecules are molecules composed of two atoms, such as Oxygen (O2), Hydrogen (H2), Nitrogen (N2), and Fluorine (F2). Diatomic molecules are the most common type of molecules in nature and are found in all three states of matter (solid, liquid, and gas). Diatomic molecules contain only two atoms and do not contain any other elements or molecules.
This is in contrast to other elemental substances, which exist as individual atoms or molecules composed of different elements. Diatomic elements have unique chemical and physical properties due to the strong bond between the two atoms.
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So
A scientist collected a 37.50 g sample of a
compound. Determine the % composition
of Cr in the compound if the sample is
made up of 19.01g O, Oxygen and 4.76 g
C, Carbon, and the remainder is Cr,
chromium. Type your answer to two
decimal places. Do not put the percent
sign.
Mass is a measure of an object's resistance to acceleration.
1. Calculate the total mass of the sample:
37.50 g
2. Calculate the total mass of the elements O and C:
19.01 g + 4.76 g = 23.77 g
3. Calculate the mass of Cr:
37.50 g - 23.77 g = 13.73 g
4. Calculate the composition of Cr in the compound:
13.73 g / 37.50 g x 100 = 36.56
What is Mass?
The resistance to acceleration of an object is measured by its mass. It is a fundamental property of physical objects and is often expressed in kilograms (kg) or grams (g). Mass is related to the inertia of an object, which is a measure of how difficult it is to change the object's motion. Mass also determines the strength of the gravitational force acting on an object.
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what are standard conditions when working with gases?
Answer:
STP in chemistry is the abbreviation for Standard Temperature and Pressure. STP most commonly is used when performing calculations on gases, such as gas density. The standard temperature is 273 K (0° Celsius or 32° Fahrenheit) and the standard pressure is 1 atm pressure.
Classify the following alcohols as primary secondary and tertiary alcohols
Following is the list of primary secondary and tertiary alcohols.
Alcohols are chemical compounds made composed of an alkyl or aryl group and a hydroxyl group (ROH). A fundamental alcohol is a hydroxyl carbon with just one R group. If it contains two R groups, it is a secondary alcohol, and if it has three R groups, it is a tertiary alcohol.
Look at the carbon bonded to OH to identify whether an alcohol is primary, secondary, or tertiary. The alcohol is primary, secondary, or tertiary depending on how many other carbons are connected to that carbon. It is methanol if there are three hydrogens and no carbons, which is a rare combination.
For the given formulas, following are different types of alcohols -
a) Primary Alcohols
b) Tertiary Alcohol
c) Secondary Alcohol
d) Primary Alcohol
e) Primary Alcohol
f) secondary Alcohol
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What is the molarity of a LiOH solution if 15. 5 mL of a 0. 112 M H2SO4 solution is
required to neutralize a 25. 0-ml sample of the LiOH solution?
2LiOH + H2SO4 --> Li + 2H20
Molarity is a measure of the amount of solute that is dissolved in a given amount of solution.
What exactly is Molarity?
Molarity is a measure of the concentration of a solution, defined as the number of moles of a solute per liter of solution. It is typically expressed as moles per liter, or M. Molarity is an important concept in many chemistry and biology applications, as it can be used to determine the amount of a certain element or compound that is present in a solution.
Moles of H2SO4 required to neutralize LiOH = (15.5 mL x 0.112 M H2SO4) / 1000 mL = 0.01728 moles
Moles of LiOH used = 0.01728 moles
Moles of LiOH in 25.0 mL sample = (25.0 mL x Molarity of LiOH) / 1000 mL
Molarity of LiOH = (0.01728 moles x 1000 mL) / 25.0 mL = 0.6912 M LiOH
Hence, the molarity of a LiOH solution is 0.6912 M.
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Contaminants such as fertilizers, pesticides, and animal waste being released into nearby air and water can cause ___
A:Water pollution
B: Dead zones
C: Human health issues
D: All of the above
Answer:
The answer is D all of the above
Explanation:
How many mol ratios can be obtained from the following chemical equation? Na2s + cd(No3)2 ———-> 2 NaNo3 +cds
12mol ratios can be obtained .
The net ionic equation is a chemical equation that only depicts the elements, compounds, and ions that are directly involved in the chemical process.
As previously stated, we employ net ionic equations to highlight the molecules that change throughout the reaction. It makes it simple to identify the active molecules in a reaction since they are the only ones in the equation.
Fill in the blanks with the balanced molecular equation.
For each substance, write the state (s, l, g, aq).
Break down strong electrolytes into ions (the complete ionic equation).
Remove the spectator ions from both sides of the full ionic equation.
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What is the car doing
Answer: Moving?
Explanation:
A spinner with 6 equally sized slices has 3 red slices, 1 yellow slice, and 2 blue slices. The dial is spun and stops on a slice at random. What is the probability that the dial stops on a red slice? Write your answer as a fraction in simplest form.
Answer:
1/2
Explanation:
Corn plants and milkweed plants grow in the same area. Over several years, the milkweed plants have taken over the field and the corn plants no longer have space to grow.
Answer:
This question is incomplete, the complete part of the question is as follows:
This best demonstrates which type of an interaction between the plants?
A. cooperation
B. parasitism
C. commensalism
D. competition
The answer is D
Explanation:
Organisms in their natural environment interact with one another in so many ways. The ways by which this interaction occurs are; competition, predation, commensalism etc.
Competition is the interaction between two organisms in which one or both organisms are harmed due to limited resources. Competition occurs when the organisms involved occupy the same niche or utilize the same limited resources.
In this question involving corn plants and milkweed plants. They are said to grow in the same area. Over several years, the milkweed plants have taken over the field and the corn plants no longer have space to grow. In this case, there is a limited space for growth, hence, the corn plant and milkweed COMPETE.
i am boréd wanna chàt
yeah same I'm bóred too -,-
Answer:
sure hi ...............................
How many grams of chlorine gas react when 266.28 grams of aluminum reacts
Answer:
We can answer this question if the chemical reaction provided to this question is provided to us.
(50 points help ASAP it’s due 10mins)About how much more TE does it take to change the temperature of 1 kg of water compared to 1 kg of iron?
A. 5:L1
B. 12:1
C. 9:1
D. 2:1
Answer:c
Explanation:
An example of a secondary sex characteristic is the increase in hair on some parts of the body.
Which organ(s) would be responsible for this trait? Select two options.
a. the thyroid
b. the ovaries
c. the thymus
d. the adrenal gland
e. the testes
f. the pancreas
Answer:
The ovaries the testes
Explanation:
Do good!
Grade7science
Can somebody plz help answer this science question ? (Will mark brainliest whoever amasses first) :DDD!
Answer:
From becoming magma. It comes to the surface because of the tectonic plates shifting, it's able to escape from the cracks. it also may cause the plates to melt and allow the magma to rise.
Explanation:
deep underground, rocks are put under tons of pressure and extremely hot temperatures, causing them to melt into magma. sometimes the magma cools and becomes igneous rock. Magma makes it to the surface by either escaping through cracks in tectonic plates or by melting the plates and rising.