33) 1 e = ........С
O 1.6*10^-27
O * 1.6 *10^-19
O 1.66 * 10^-19
o 1.66* 10^-27​

Answers

Answer 1

Answer

0.16574

Explanation:

because why not


Related Questions

Fat is a ____________ (Body Buiding / Energy Giving / Protective ) food.​

Answers

Fat is a energy giving , protective food

hope it helps

I give my best answer almost

Low tides are located at___

A an C

A an B

B an D

Answers

Answer: A and C

Explanation:

Low tides occur in locations at 90 degree angles to the moon. Tidal cycles have the same length as the lunar day, 24 hours and 50 minutes. In this time span, most locations will experience two high tides, when the location is close to and far from the moon, and two low tides. Sides A and C are angled 90 degrees from the moon.

Hence, low tides are located at A and C.

Answer:90 degree angles to the moon.

Explanation:

The temperature at which a solid melts is the same as the temperature at which its liquid form solidifies (true or false)​

Answers

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

can anyone heelp me pls

Answers

Answer:

lotion 2. capsule 3. suspension 1.

write the electronic configuration of iron in fecl2 and fecl3

Answers

Ferrus is a transition metal.

FeCl_2

Valency of Fe is 2 .Hence Z=26-2=24

Electronic configuration is given by

[tex]\\ \sf\longmapsto [Fe]^{2+}=1s^22s^22p^63s^23p^64s^23d^4[/tex]

FeCl_3

Valency of Fe is 3Hence Z=26-3=23

Electronic configuration is given by

[tex]\\ \sf\longmapsto [Fe]^{3+}=1s^22s^22p^63s^23p^64s^23d^3[/tex]

What is the density of the marble?
0.22 g/mL
1.67 g/mL
60 g/mL.
460 g/mL

Answers

Explanation:

option B is the correct answer, 1.67g/mL.

hope this helps you.

By referring to particles, explain why the white ring formed in the glass tube

Answers

Answer:

Ammonia and Hydrogen Chloride.

Explanation:

Assuming this is what you're referring to, Ammonia (NH3) and Hydrogen Chloride(NCI3). The concentrated ammonia (NH3) is placed on a pad in one end of a tube and hydrochloric acid (NCI3) on a pad at the other. Shortly after the gases will begin diffusing far enough to meet, a ring of solid ammonium chloride (NH4Cl) will be formed.

John Dalton thought that atoms


1. Cannot be broken down further
2. Have no mass
3. Contain molecules
4. Are all composed of carbon

Answers

Answer:

cannot be broken down further

PLS I NEED HELP QUICKKKKK

Match each example to the type of wave.

B. Longitudinal wave
A. Transverse wave
C. Combination of longitudinal and transverse wave
D. Infrared wave
E. Radiant energy
F. Microwaves
G. Ultraviolet waves

Answers

Answer: These are all examples of the waves you listed

B- Soundwave, ultrasound waves

A-Surface ripples on water

C- water waves

D-The heat that we feel from sunlight, a fire, a radiator or a warm sidewalk is infrared.

E-The heat emitted from a campfire.

F-Long Distance Wireless Transmission. Most wireless transmission systems are based on microwave technology.

G- Disinfectants

Explanation:

Hope this helps!!

Have a nice day!

What are the products of the chemical reaction shown?

CH4+2O2 --> CO2 + 2H2O

Question 10 options:

CH4 and O2

O2 and H2O

CO2 and H2O

CH4 and CO2

Answers

Answer:

CO2 AND H20 I THINK IM 99 PERCENT SURE

Which two phrases describe the movement of thermal energy due to
convection currents in the water on Earth?
O A. From the bottom of the ocean to the surface
B. From the surface of the ocean to the bottom
C. From cooler parts of Earth to the equator
D. From the equator to cooler parts of Earth

Answers

Answer:

D. From the equator to cooler parts of Earth

Explanation:

Thermal energy is always transferred from an area with a higher temperature to an area with a lower temperature. Moving particles transfer thermal energy through a fluid by forming convection currents.

Answer:

B. From the surface of the ocean to the bottom

D. From the equator to cooler parts of Earth

Explanation:

Test approved

Is oxygen a necessary reactant for an oxidation reaction? Explain

Answers

Answer:

So oxidation reactions need not involve oxygen. This redox reaction is actually the sum of two separate half-reactions (a reduction half-reaction and an oxidation half-reaction).

The oxidation reaction does not require oxygen as a reactant. An atom, molecule, or ion loses one or more electrons during the chemical process of oxidation, increasing its positive charge.

What is oxidation ?

When electrons are lost or the oxidation state increases, it is called oxidation; when they are gained or the oxidation state decreases, it is called reduction.

A molecule is said to be oxidized when oxygen is added to it or when hydrogen is taken out of it. Reduction is the process of introducing hydrogen or removing oxygen from a molecule.

An element is oxidized if it loses electrons, which is another definition of oxidation. Any electron acceptor can oxidize an element by taking in the lost electrons, hence oxygen is not a necessary component in oxidation.

The process of converting glucose into ATP requires oxygen. For each glucose, the first step only releases two molecules of ATP.

Thus, The oxidation reaction does not require oxygen as a reactant.

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The ___ of a bottle tells you how much liquid it can hold. what is the anewer

Answers

Answer:

Volume

Explanation:

Volume is how much of a substance something can hold!

Hope this helped, have a nice day! :)

The word that completes the sentence is "volume."The volume of a bottle refers to how much liquid it can hold, typically measured in liters or milliliters.

Knowing the volume of a bottle is important when you need to measure out or store a certain amount of liquid. Different types of bottles have different capacities, so it's important to check the label or specifications to determine the right size for your needs.

Volume is a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units (such as the gallon, quart, cubic inch). The definition of length (cubed) is interrelated with volume. The volume of a container is generally understood to be the capacity of the container; i.e., the amount of fluid (gas or liquid) that the container could hold, rather than the amount of space the container itself displaces.

Thus, the word that completes the sentence is "volume."

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Summarize the steps of water cycle

Answers

Answer:

The water cycle consists of three major processes: evaporation, condensation, and precipitation. Evaporation is the process of a liquid's surface changing to a gas. In the water cycle, liquid water (in the ocean, lakes, or rivers) evaporates and becomes water vapor.

Explanation:

what is the product of the following reaction? Cd+Znso
A. Zn+CdSO4
B. H2+CdSO4
C. H2+ZnSO4
D. H2+Zn
E. No reaction​

Answers

Answer:

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

Explanation:

:)

Calculate the approximate number of sodium ions in 2.52 g of sodium sulphate,
Na2SO4.

Answers

Explanation:

Please send me the answer of this question

What is the sum of the atomic numbers of each element present in the reactants of the given formula?


2 NH3 + H2SO4 → (NH4)2SO4

Answers

Answer:

25

Explanation: They all add up to 25 Atoms

The atomic number of nitrogen is 7 and that of oxygen is 8. Atomic number of hydrogen is one and the atomic number of sulphur is 16. Then, the sum of  atomic numbers of each element present in the reactants of the given formula is 32.

What is atomic number ?

The atomic number of an atom is the number of electrons in its neutral state. This number is equal to the number of protons also. The modern periodic table classify all elements based on their atomic numbers.

The sum of number of protons and neutrons of an element is called its mass number. For the given formula, the elements present are H, O, N and S.

atomic number of H = 1

atomic numebr of N = 7

atomic number of O =8

atomic number of S = 16.

Then ,sum of atomic number s= 1 + 7 + 8 + 16 = 32.

Therefore, the sum of the atomic numbers of each element present in the reactants of the given formula is 32.

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1. The average temperature in Addis Ababa, during the summer, is about 25°C. What is the equivalent Kelvin temperature? ​

Answers

Answer:

25 + 273= 298k.

Explanation:

I guess it's correct answer

The equivalent Kelvin temperature is 298 K.

What is temperature?

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.

Celsius scaleKelvin scaleFahrenheit scale

Thus, the equivalent Kelvin temperature is 298 K.

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What happens when the compound CaCl2 forms?

Answers

Explanation:

Calcium gives valence electrons to both chlorine atoms so that they have a full outer shell.

b. How does government funding affect scientific progress? (1 point)

Answers

Answer:

29 percent of federal R&D money goes to universities, 29 percent goes to industry, and another 29 percent goes to researchers who work directly for federal agencies. About 10 percent goes to federally funded labs operated by private contractors.

Answer:

Explanation:

Funding from the government greatly affects the scientific research as a research can take number of years to complete. During this time period lot of financial support is required as there might be lot of expensive chemicals or substance that the scientist requires for his research.

When excess potassium hydroxide and H2SeO3 react whats the net ionic reaction for the acid-base rxn

Answers

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.

Learn more:https://brainly.com/question/25150590

Please help! I will give 100 pts and brainliest if it is good.

Answers

Answer:

group 1 element 6

group 2 element 3

group 11 element 1

group 14 element 2

group 17 element 4

group 18 element 5

Explanation:

Answer:

Explanation:

group 1 element 6

group 2 element 3

group 11 element 1

group 14 element 2

group 17 element 4

group 18 element 5

How many molecules are in 8.27 mol of SiH,?

Answers

Answer:

from,

moles,n = number of particles, N

Avogadro constant

N = 8.27 * 6.022×10^23

N = 4.98 × 10^ 24particles.

In 8.27 moles of SiH, there are

4.98 × 10^24particles.

Silicon dioxide is a solid at room temperature and methanol is a liquid. What substance has the higher melting point?

Answers

Answer:

methanol because it is liquid at room temperature which means that it melts at a lower temperature

Silicon dioxide is a solid at room temperature and methanol is a liquid. Silicon dioxide has a higher melting point than methanol because silicon dioxide is solid, and with increasing temperature, it will melt.

What is a melting point?

Melting point is that point or temperature at which the solid items are converted into liquid, and it changes their atoms and the atoms lose their compactness.

Here, two compounds are given, Silicon dioxide and methanol, the first one is solid at room temperature, so it will need more temperature to melt down and methanol is still liquid at room temperature, so its melting point is low.

Thus, methanol is a liquid while silicon dioxide is a solid at ambient temperature. Because silicon dioxide is a solid and melts at greater temperatures, it has a higher melting point than methanol.

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Explain why the nucleus of an atom is positively charged but the overall charge of an atom is neutral

Answers

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:

WHAT IS THE COLOR OF METHYL ORANGE


1. YELLOW
2. PINK
3. ORANGE​

Answers

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

High temperatures inside Earth form

melted rock.

fossils.

soil.

minerals.

Answers

Answer:

minerals

Explanation:

Hope this helps

A(1,2),B(1,4),C(6,2),

Answers

Answer:

????

Explanation:

where's the question

Determine the number of moles in 3.13 × 10²³ formula units of MgCl₂.

Answers

Answer:

0.52 moles

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{3.13 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{3.13}{6.02} \\ = 0.519933[/tex]

We have the final answer as

0.52 moles

Hope this helps you

How many unpaired electrons does fluorine have in its ground state electron configuration?

Answers

Answer:

1 unpaired electron (s)

Explanation:

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