Chemistry Middle School

How many atoms of H are there?

How Many Atoms Of H Are There?

Answers

Answer 1

Answer:Explanation:

ther are 4

Answer 2

Answer:

First off, 3.4 / 342 = 0.01, not 0.001, so moles H = 0.22, not 0.022.

Then you multiplied the erroneous 0.022 x 6.022 x 10^22. Avogadro's number = 6.022 x 10^23, not 10^22! So your final answer should be 1.3 x 10^23 H atoms (choice B).

Your reasoning was right on, just a few math errors.

Explanation:

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Related Questions

Help pick me if your finding a question

Answers

I'd say the 2nd option

It’s the second option

Will give brainly! How was the ancient idea of elements similar to what we now know about elements, and how was it different?

Answers

Answer:

elements in the elements now are different end of story

In ancient times the elements meant : water, fire, earth, and air. However the modern definition of elements is a pure substance that cannot be broken down into a simpler substance.

An unlabeled hierarchical diagram of various astronomical bodies is shown below. The labels A, B, C, and D can be used to represent the Milky Way, universe, planets, clusters, and stars.

Part 1: Which four astronomical bodies would you choose to represent the four labels in the diagram?
Part 2: Justify your choice based on the hierarchical relationships in astronomical bodies.

Answers

Ait’s the one that make sense

Water waves are surface waves. The energy of the waves moves

Question 2 options:

only perpendicular to the motion of the wave.


both parallel and perpendicular to the wave.


only parallel to the motion of the wave.

Answers

Answer:

Explanation:

Waves are actually energy passing through the water, causing it to move in a circular motion. ... This phenomenon is a result of the wave's orbital motion being disturbed by the seafloor.

The direction a wave propagates is perpendicular to the direction it oscillates for transverse waves. A wave does not move mass in the direction of propagation; it transfers energy.

only perpendicular to the waves

Which of the following is an example of a dogs phenotype?
A. LI
B. Long tail or short tail
C. Breathes oxygen
D. Eats food

Answers

B The phenotype is the physical characteristics of an organism such as what they look like.

I need help with both are they right please read the questions my grades dropped and if I don’t get them up I can’t go out of town Friday please help me:( !

Answers

The Second one is correct. The first one is 25%!

Water boils at 100 degrees

Group of answer choices

Celsius

Fahrenheit

Kelvin

Answers

Answer:

celcius

Explanation:

Water boils at 100 degrees Celsius at sea level.

How many atoms of Cr are there?

Answers

There are 4 atoms of Cr
There is 4 atoms of axe

A bacterium is made up of one single cell. An elephant is made up of many specialized cells. Which of the following statements is true?


a. Bacteria are multicellular organisms, while elephants are unicellular organisms.

b. Bacteria are unicellular organisms, while elephants are multicellular organisms.

c. Both bacteria and elephants are unicellular organisms.

d. Both bacteria and elephants are multicellular organisms.

Answers

Answer:

Statement B

Explanation:

Bacteria is made of a single cell where as elephants have many cells this becoming a multicellular organism

B is the correct answer

What's a good thermal insulator??
1. Heats and cools quickly
2. Heats and cools slowly

Answers

Answer:2

Explanation:

Answer:stainless  steal

Explanation:

There is no change in temperature during a phase change as this energy is being used to make or break bonds between molecules.


True

False

Answers

The correct answer for the question above would be false

Answer:

false

Explanation:

How many atoms is S are there?

Answers

Answer:

Element Symbol # of Atoms

Iron Fe 2

Oxygen O 12

Sulfur S 3

there are 3 atoms for a

What types of matter have the property of density?

1.Everything except gasses have density.

2.Only heavy matter has density.

3.All solids, liquids, and gases have density.

4.Only solid matter has density.

Answers

Answer:

all solids, liquids and gases have density

The types of matter which property of density can be attributed with are;

.All solids, liquids, and gases have density.

Density can be regarded to as one of the characteristic property of a substance. The density of a substance expressed the relationship that the particular substance has with the mass of the substance as well as its volume which is  how much space it takes up.The mass of a particular atoms, as well as how they are been arranged and their size,  determine the density of a substance.Both solid , liquid as well as gas has density.For instance, density of water is 1000kg/cm^3

Therefore, option C is correct.

Learn more at: https://brainly.com/question/21667661?referrer=searchResults

what happens when a low air pressure seytem meets a high air pressure

Answers

Answer:

The temperature of the air drops to below freezing. 2. The air moves to the low pressure system, creating wind. 3.The precipitation is removed from the air. 4. The air starts blowing in an easterly direction.

Explanation:

Answer:

The slightly inward moving air in low pressure causes air to converge and since it can't move downward due to the surface, the air is forced upward, leading to condensation and precipitation as discussed earlier. The opposite occurs with high pressure.

brainliest plz?

The water cycle is the movement of water from Earth's surface to the atmosphere and back to Earth's surface. Why do many living organisms depend on the water cycle?
A.
The water cycle evenly distributes water across Earth's surface.
B.
The water cycle renews the supply of fresh water on land.
C.
The water cycle removes salts and pollutants from the ocean.
D.
The water cycle constantly adds water to Earth's total supply.

Answers

The water cycle renews water supplies by moving water from the oceans, as freshwater, to land
The water cycle renews the supply
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