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Lelu [443]
4 years ago
10

What period is the atom in?

Chemistry
1 answer:
kupik [55]4 years ago
6 0
- Period 2
- Group 14
- Carbon
- Silicon
- Yes, depending on the allotrope.
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Which is true with respect to the kinetic energy of a molecule?
Elis [28]

Answer:

A.  it is the lowest at low temperatures

Explanation:

At low temperature the kinetic energy of a molecule is low. The kinetic energy is directly proportional to the temperature of the molecule. The kinetic energy of a molecule increases with the increase in the temperature that energize the molecules of a substance and makes them to move faster than before.

As the kinetic energy is proportional to temperature so it does not increase with decrease in the temperature (low temperature). The kinetic energy varies with the change in the temperature and it is not same at all temperature. The kinetic energy is highest at high temperature. Thus, option A is correct.

3 0
4 years ago
when a compound containing c h and o is completely combusted in air what reactant besides the hydrocarbon is involved in the rea
Arada [10]

When a compound containing C, H and O is completely combusted in air what reactant besides the hydrocarbon is involved in the reaction is Oxygen.

<h3>What is hydrocarbon?</h3>

A hydrocarbon is an organic molecule composed completely of hydrogen and carbon in organic chemistry. Group 14 hydrides include hydrocarbons. Hydrocarbons are often colourless and hydrophobic, with scents that are weak or exemplified by gasoline and lighter fluid. They exist in a wide range of molecular forms and phases, including gases (like methane and propane), liquids (like hexane and benzene), low melting solids (like paraffin wax and naphthalene), and polymers (such as polyethylene and polystyrene). Hydrocarbon refers to naturally occurring petroleum, natural gas, and coal, as well as their hydrocarbon derivatives and refined forms, in the fossil fuel industry. The primary source of energy on the planet is the combustion of hydrocarbons.

To learn more about hydrocarbons visit:

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7 0
1 year ago
Which statement describes an advantage of nonrenewable resources?
olchik [2.2K]

Answer:

The statement that describes the advantage of a nonrenewable energy source is that ' they are currently found in abundance' Option D.

Explanation:

Nonrenewable energy sources are sources of energy which will not be replenished after their use, their production usually takes millions of years to be accomplished, Like crude oil, the synthesis under the ground was believed to take Millenium from the various geothermic reactions that occur on the buried biomass millions of years ago.

However, since these energy sources are liable to be exhausted quickly due to their unreplenish nature, nature provides them in abundance. They are currently found in large quantity. Take for example, the coal deposit and crude oil wells which had been mined for many years before now. The continuous usage of these nonrenewable sources nevertheless makes them to be susceptible to exhaustion in some years to come.

5 0
3 years ago
What reaction would be the chemical equation 2H2O-&gt;2H2+O2 represent? A.decomposition of water b. Formation of water c. Combus
vodka [1.7K]
It's decomposition
A combustion reaction involves carbon dioxide so it can't be that
The water is not being formed
The water is not replaced by the other molecules
So it is decomposition, not just from process of elimination, but also because decomposing water means heating it.
4 0
4 years ago
Read 2 more answers
Explain the properties of the substance around us depend on the atoms and molecules that compose them
Fynjy0 [20]
Form determines function is the explanation in this statement.The example is Na+ is table salt but Na is highly unstable. Understanding its form and function is very important in making an experiment. So we need to know and understand the relationship between form and function for appreciating.
7 0
3 years ago
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