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3 years ago

What tool do you use to measure mass?

Chemistry

1 answer:

pshichka [43]3 years ago

7 0

Answer: Balance

Explanation: Mass is the amount of matter contained in a body.

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Please help, I don't under stand! Balance the following oxidation-reduction reaction and indicate which atoms have undergone oxi

pogonyaev

Answer:

3 FeCl3 + H2S = 2 FeCl2 + S + 2 HCl

Explanation:

Fe goes form +3 to +2

S goes from -2 to 0

H and Cl are spectator ions

Fe3+ + 1e-= Fe2+

H2S = S + 2 H+ + 2e-

3 Fe3+ + H2S = 2 Fe2+ + S + 2 H+

3 FeCl3 + H2S = 2 FeCl2 + S + 2 HCl

4 0

3 years ago

The process during which cells of the body harness energy from food consumed by a living organism is ______________________.

o-na [289]

It is called Cellular Respiration

5 0

3 years ago

The second reaction in the formation of sulfuric acid occurs slowly.

rjkz [21]

<u>Answer:</u> The correct option is $NO_2(g)$

<u>Explanation:</u>

A catalyst is defined as the chemical species that increases the reaction rate but does not participate in it and is left behind after the completion.

A homogeneous catalyst is one that is present in the same phase as the reactants and products.

A heterogeneous catalyst is one that is present in different phase as that of reactants and products.

For the given chemical reaction:

$2SO_2(g)+O_2(g)\rightarrow 2SO_3(g)$

As all the reactants and products are in gaseous state so, the homogeneous catalyst must also be in the gaseous state only.

Hence, the correct option is $NO_2(g)$

5 0

3 years ago

What makes organic compounds reactive?

konstantin123 [22]

Answer:

The functional groups

Explanation:

An organic compound is a compound that contain carbon and another element such as hydrogen, oxygen, nitrogen, etc.
Functional groups are the portions of an organic compound that is capable of characteristic reactions.
Functional groups determine the chemical and physical properties of many organic compounds.

3 0

4 years ago

If a solution conducts electricity, it is positive evidence that

BlackZzzverrR [31]

Answer:

If a solution conducts electricity, it is positive evidence that solute dissolved in solvent is electrolyte.

3 0

3 years ago