High tides are located at__

A an B

B an D

B an C

Answer: how old are you

Explanation:

Answer:

true

Explanation:

hydrogen and carbon make hydrocarbons

Answer: Using the standardized NaOH solution in the previous question, the titration of 5.00 mL of vinegar required 42.25 mL of NaOH. What is the % of acetic acid in the vinegar? Concentration of NaOH from previous question= 0.0986 M. David C.

Explanation:

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The percentage of acetic acid in vinegar is 4.988 %., When the titration of 5.00 mL of vinegar required 42.25 mL of NaOH.

Titration is defined as the process of chemical analysis method in which the amount of a sample's constituent is determined by mixing a precisely measured amount of the desired constituent with another material in a precise, known proportion. The equivalence point, or the point at which chemically equivalent amounts of the reactants have been combined, is to be detected by the titration.

According to the titration principle, V1=the volume of acetic acid and V1S1=V2S2

S1 is the acetic acid's strength

V1 = 42.25 ml * 0.0986 M / 5 ml = 0.833 M where V2 = Volume of NaOH S2 = Strength of NaOH

Hence, 1000 ml Vinegar contains 0.833 moles of acetic acid per 100 ml of vinegar (0.0833*60). G=4.998 grams of acetic acid

The amount of acetic acid in vinegar is 4.988%.

Thus, the percentage of acetic acid in vinegar is 4.988 %., When the titration of 5.00 mL of vinegar required 42.25 mL of NaOH.

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Answer:

any form of water that falls from the sky

Answer:

3.Orange it literally say's it methyl ORANGE

Explanation:

Brainliest plz

Answer:

Other indicators

Indicator Acidic Alkaline

Methyl orange Red Yellow

Phenolphthalein Colourless Pink

Answer:

paper, blood cell, virus, electron, atom

Explanation:

Adhesion is the attraction of molecules of one kind for molecules of a different kind... water is adhesive because the water molecules are attracted to the straw and therefore adhere to it. Thus, adhesive forces are important for sustaining life. This is because of these forces, water can flow up from the roots to the tops of plants to feed the plant, allowing it to move against gravity through plant cells. Another example of why its important that water is adhesive is the movement of water to the tops of trees and the drainage of tears from tear ducts in the corners of your eyes. Or how water droplets stick to the end of the pine needles. These are all examples of adhesion.

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The required net ionic equation is; 2H^+(aq) + 2OH^-(aq)-----> 2H2O(l)

The molecular reaction equation is;

H2SeO3(aq) + 2KOH(aq) -----> K2SeO3(aq) + 2H2O(l)

The complete ionic equation is;

2H^+(aq) + SeO3^2-(aq) + 2K^+(aq) + 2OH^-(aq)-----> 2K^+(aq) + SeO3^2-(aq) + 2H2O(l)

Net ionic equation;

2H^+(aq) + 2OH^-(aq)-----> 2H2O(l)

We can clearly see that this is a neutralization reaction hence water is the product of the net ionic equation.

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The molecular formula shows the number of atoms present. The molecular formula of the gas is most likely ClO2.

In terms of gas density and molar mass, the ideal gas equation can be written in the form; PM = dRT

Where;

P = pressure of the gas

M = molar mass of the gas

d = density of the gas

R = molar gas constant

T = temperature of the gas

Making the molar mass of the gas the subject of the formula;

M = dRT/P

d = 2.875 g/L

R = 0.082 atmLmol-1K-1

T =  11°C + 273 = 284 K

P = 750.0 mm Hg or 0.99 atm

Substituting values;

M =  2.875 g/L ×  0.082 atmLmol-1K-1 × 284 K/ 0.99 atm

M = 67.6 g/mol

The gas is most likely ClO2.

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Answer:

The nucleus is positively charged because it contains all of the protons however the charge of an atom is neutral because there is an equal amount of protons (positive) and electrons (negative) meaning the opposite charges cancel each other out therefore making the atoms overall charge neutral.

Explanation:

Answer:

Matter can be broken down into two Zalo categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated into their original components.

Answer:

C) Bromine

Explanation:  Bromine needs just one electron to fill its outer shell.

Bromine has the greatest attraction for electrons in a covalent bond because it has the highest electronegativity among the given option as it needs only one electron to complete its octet. Therefore, option (C) is correct.

Halogens are the elements of group 7 of the modern periodic table, which contains five elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).

Halogens are generally nonmetals in which fluorine and chlorine are gases at room temperature and bromine is a liquid, iodine and astatine are solids. Halogens are very reactive as they have seven valence electrons and need only one electron to get a noble gas configuration.

As we move left to right in a period the electronegativity increases and all the given elements Se, As, Br and Kr are elements of the same period but the Kr is a noble gas. Therefore, Bromine has the greatest attraction for electrons in a covalent bond.

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Answer:0.305g

Explanation:

mass = 79.9x(2.3 x 10^21) / (6.02 x 10^23)

= 0.305

Answer:

It changes from a liquid to a gas. I hope this helps you! :D

Answer:

The full electron configuration for an N2− ion is 1s^2 2s^2 2p^5

The electronic configuration of the N²⁻ ion is 1s²2s²2p⁵.

The electron configuration can be described as how electrons are distributed in different energy levels or electron shells of an atom of an element. In the electron configuration of an atom, the number of electrons can be written as a superscript of electron atomic subshells. For example, the electron configuration of magnesium can be written as 1s²2s²2p⁶3s².

The principal quantum number (n) can be defined as the maximum number of electrons that can be filled in an electron shell of an atom. The formula used to determine is 2n², where ‘n’ is the principal quantum number.

The atomic number of the nitrogen atom is 7 and the electronic configuration is 1s²2s²2p³. When it gains two electrons then it has 9 electrons in total. The nine electrons can be filled as  1s²2s²2p⁵.

Therefore, the electronic configuration of the N²⁻ ion is 1s²2s²2p⁵.

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Answer:

25 + 273= 298k.

Explanation:

I guess it's correct answer

The equivalent Kelvin temperature is 298 K.

Temperature is defined as a measurement of an object's or substance's warmth or coolness in relation to a standard value.

It can also defined as the feature of matter that represents the amount of energy of motion of its constituent components.

Temperature scale is defined as a method of indicating or measuring temperature with respect to a beginning point (0 or zero) and a unit of measurement.

Temperature scale is also defined as a way of calibrating the physical quantity temperature in metrology.

Usually there is three types of temperature scale is used.

Thus, the equivalent Kelvin temperature is 298 K.

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Explanation:

Multiply the given moles times the molar mass of neon, 20.180 g/mol (periodic table).

Answer:

Multiply the supplied moles by 20.180 g/mol, the molar mass of neon (periodic table).

Explanation:

Answer:

fg

Explanation:

Answer:

Cd + ZnSO4 -----> Zn + CdSO4

Explanation:

:)

From the graph shown, Y2 = N2, X2 = O2, Z2 = H2.

When atoms of elements are at a large distance from each other, the potential energy of the system is high. However, as the atoms approach each other, the potential energy of the system decreases steadily. The closer the atoms come to each other, the lower the potential energy. This implies that potential energy is proportional to bond length.

Since N2 has a shorter bond length and higher energy, Y2 must be N2. The bond energy of hydrogen is small hence H2 must be X2. The bond energy of a double bond is intermediate between that of a single and triple bond hence Z2 must be O2.

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Cobalt-60 is comprised of 27 protons, 33 neutrons, and 27 electrons. Nuclear reactors are used to artificially create it.

A radioactive isotope containing cobalt with something like a half-life of 5.2713 centuries is called cobalt-60 (60Co). Nuclear reactors are used to artificially create it. Neutron irradiation of bulk material of the monoisotopic as well as mononuclidic cobalt element 59 Co is necessary for deliberate industrial manufacture.

The accidentally generated 60 Co in the latter instance (inside the absence of additional cobalt) is mostly the product of many phases involving neutron activation on iron isotopes inside the reactor. Cobalt-60 is comprised of 27 protons, 33 neutrons, and 27 electrons.

Therefore,  cobalt-60 is comprised of 27 protons, 33 neutrons, and 27 electrons.

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Answer:

They all have the same number of atoms

Explanation:

Which of the following has more atoms?

One mole of zinc

One mole of gold

One mole of silver

One mole of magnesium contians  

O They all have the same number of atomst

a mole of anything contains Avogadros number of 6.022X10^23  things

which has the greatest number of thing? a dozen eggs, a dozen cookies, a dozen pizzas?

a dozen is a number means 12

a mole is a number that that means 6.022 X 10^23 you calculate the molar mass from the chemical formula, but every j mole contains 6.022X10^23

particles.

just like every dozen contains 12

so

They all have the same number of atoms

Answer:

in order of decreasing intermolecular forces.

CH3COOH      acetic acid

CH3COCH3     acetone or IUPAC propanone

, CH3CH(CH3)CH3 isobutane or IUPAC 2 methyl propane

Explanation:

Based on their composition and structure, list

CH3COCH3

this ketone has the middle intermolecular forces

, CH3CH(CH3)CH3  

this hydrocarbon has the lowest intermolecular forces

, and  CH3COOH

this carboxylic acid has the greatest intermolecular forces

in order of decreasing intermolecular forces.

CH3COOH      acetic acid

CH3COCH3     acetone or IUPAC propanone

, CH3CH(CH3)CH3 isobutane or IUPAC 2 methyl propane

Considering the definition of empirical and molecular formula, the pair of compounds C₄H₁₀ and C₂H₅ has the same empirical formula.

The empirical formula is the simplest expression to represent a chemical compound and indicates the elements that are present and the minimum proportion in whole numbers that there are between their atoms. This formula is also known as the "minimum formula".

On the other side, the molecular formula is the chemical formula that indicates the number and type of different atoms present in the molecule. But unlike the chemical formula, it shows the actual number of atoms that make up a molecule.

In this case, you can observe that if you divide the amount of each element by 2 in compound C₄H₁₀, you get C₂H₅, which is the empirical formula of the compound.

Finally, the pair of compounds C₄H₁₀ and C₂H₅ has the same empirical formula.

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its false not true................

Answer:

True

Explanation:

This is true because, upon cooling the particles in a liquid loses energy, stops moving and remains constant and the forms a solid.

Therefore we can say the freezing point and melting point occurs at the same temperature

The reaction between copper II chloride and sodium sulfide as well as lead II nitrate and potassium sulfate both produce precipitates.

The solubility of a substance in water is in accordance with the solubility rules.  It is possible that a solid product may be formed when two aqueous solutions are mixed together. That solid product is referred to as a precipitate.

Now, we will consider each reaction individually to decode whether or not a precipitate is possible.

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