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ludmilkaskok [199]
3 years ago
11

Which oneof the following would best be measured useing kilometers

Chemistry
2 answers:
Alex3 years ago
5 0
A. the distance between towns
garri49 [273]3 years ago
3 0
<span>A.) The distance between towns

Others are very small and can be measured in meters or cent-meters

Hope this helps!</span>
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Please Help Me!
S_A_V [24]

Answer:

The answer to your question is      SO₂   +   3H₂    ⇒     H₂S   + 2H₂O

Explanation:

Reaction

                                SO₂   +   H₂    ⇒     H₂S   +  H₂O

                      Reactants           Elements            Products

                              1                   Sulfur                    1

                               2                  Hydrogen               4

                              2                   Oxygen                   1

This reaction is unbalanced so we need to balance it.

                              SO₂   +   3H₂    ⇒     H₂S   + 2H₂O

                      Reactants           Elements            Products

                              1                   Sulfur                   1

                              6                  Hydrogen               6

                              2                   Oxygen                  2

Now, the reaction is balanced

3 0
4 years ago
What are some of the techniques by which mixtures can be resolved into their components?
shtirl [24]
<span>Distillation, filtration, evaporation are some of the techniques by which mixtures can be resolved into their components.Distillation is the process of separating the component or substances from a liquid mixture by selective evaporation and condensation.Filtration is any of various mechanical, physical or biological operations that separate solids from fluids (liquids or gases) by adding a medium through which only the fluid can pass.Evaporation is a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase that is not saturated with the evaporating substance.</span>
7 0
4 years ago
How does chemical reactivity of metals vary while moving.
OverLord2011 [107]

Reactivity of metals depends on the tendency to lose electrons. ... As we move down the group, the tendency to gain electrons decreases because as the atomic size increases, the effective nuclear charge decreases.

4 0
3 years ago
22. Which statement best describes the use of catalytic converters in automobiles?
AysviL [449]

Answer:

B. They oxidize hydrocarbons to form less toxic gases.

Explanation:

A catalytic converter can be defined as an anti-pollution device containing a catalyst like platinum-iridium, installed in the exhaust chamber of an automobile so as to chemically convert harmful (poisonous) pollutants such as unburned hydrocarbons and carbon monoxide (CO), sulfur dioxide (S02), nitrogen oxide (NO) etc., into less harmful, poisonous or toxic chemical compounds.

This ultimately implies that, catalytic converters are typically used for converting harmful gases into less harmful, poisonous or toxic gases and molecules e.g carbon dioxide (C02) and water (H2O). This helps to prevent global warming, enhance the conservation of natural resources, as well as preserve the lives of living organisms and their natural habitat.

<em>Hence, the statement which best describes the use of catalytic converters in automobiles is that they oxidize hydrocarbons to form less toxic gases.</em>

3 0
3 years ago
PLEASE I NEED HELP I DONT KNOW THE ANSWER. Fill out the highlighted areas. I will mark brainliest to the first person
MariettaO [177]

Answer:

I think

Explanation:

Li = 2s^1

Be = 2s^2

B = 2p^1

C = 2p^2

I think that is what it is asking if not sorry

8 0
3 years ago
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