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Elena-2011 [213]
2 years ago
8

Complete the statement. Ethanol is an elementary substance a compound

Chemistry
1 answer:
Talja [164]2 years ago
6 0

Answer:

a compound is a syllable in the outer world

Explanation:

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Can someone check that I did this correctly? What does it mean by “networks” and “formula units”?
ale4655 [162]
Idk i just need to ask a question
6 0
3 years ago
HELP PLEASE!!!!The graph below compares the volume occupied by 100 g of liquid water and 100 g of water vapor.
soldier1979 [14.2K]

Particles are farther apart in gases so substance X is water vapor

Explanation:

The best statement that fits the two described substances is that particles are farther apart in gases so substance X is water vapor. For a give mass of substance, gases occupies more volume.  

Gases do not have specific volumes, occupy space randomly and fills whichever container they are found in.  

Liquids on the other hand like solids have specific volume because their particles are very close together.  

Particles of gases are random and their molecules are far apart.  

Learn more:  

states of matter  brainly.com/question/10954198

#learnwithBrainly

3 0
3 years ago
A motorcycle travel at 6.0 m/s. After 3.0 second, the motorcycle travel at 15.0 m/s. Which of the following was the average acce
Lerok [7]

Hello!

\large\boxed{a = 3m/s^{2}}

Use the following equation to solve for the average acceleration of the motorcycle:

a = \frac{v_{f}-v_{i}}{t}

Plug in the given final, initial velocities, and the time:

a = \frac{15-6}{3}\\\\a = \frac{9}{3}\\\\a = 3m/s^{2}

7 0
3 years ago
When does a lunar eclipse occur?​
cluponka [151]

Answer:

A partial lunar eclipse occurs when the Earth moves between the Sun and Moon but the three celestial bodies do not form a straight line in space. When that happens, a small part of the Moon's surface is covered by the darkest, central part of the Earth's shadow, called the umbra.

Explanation:

5 0
3 years ago
Read 2 more answers
Convert 213.62 grams of xenon gas at STP to L.
jolli1 [7]

Answer: The coefficient is 3.645

The exponent is 1

There are 4 significant digits

The rightmost significant figure is 5

Explanation:

Scientific notation is defined as the representation of expressing the numbers that are too big or too small and are represented in the decimal form with one digit before the decimal point times 10 raise to the power.

For example : 5000 is written as 5.0\times 10^3

According to avogadro's law, 1 mole of every gas contains avogadro's number 6.023\times 10^{23} of particles, occupy 22.4 L at STP and weighs equal to its molecular mass.

131.29 g of Xe occupy = 22.4 L at STP.

Thus 213.62 g of Xe occupy = \frac{22.4}{131.29}\times 213.62=36.45L at STP.

Scientific notation = 3.645\times 10^1L

The coefficient is 3.645

The exponent is 1

There are 4 significant digits

The rightmost significant figure is 5

4 0
3 years ago
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