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3 years ago

Use the chemical equation to answer the question.

1 answer:

6 0

The statement that correctly describes the reaction is: Tungsten (W) changes oxidation numbers from +6 to zero, so it undergoes reduction.

<h3>WHAT IS OXIDATION AND REDUCTION:</h3>

Oxidation is the process whereby electrons are lost in a reaction while reduction involves the gain of electrons.

According to this question, the following reaction is given: WO3(s) + 3H2(g) → W(s) + 3H2O(g)

Tungsten has an oxidation number of +6 in WO3 and it is changed to 0 in W, hence, there is a gain of electrons by tungsten (W).

Therefore, the statement that correctly describes the reaction is: Tungsten (W) changes oxidation numbers from +6 to zero, so it undergoes reduction.

Learn more about oxidation-reduction reaction at: brainly.com/question/3867774

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Your paragraph containing

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1) Carbon tetrabromide, CBr₄

The name of the compound describes the the chemical composition of the compound by

a) Making mention of the elements in the compound, which are carbon and bromine

b) Specifying the quantity of the element that has more than one atom per mole of the compound, by making mention of the number in Roman

Here there are four bromine atoms per mole which is mentioned as tetra before the cation is mentioned as bromide or ide for-1 oxidation state for the halogens

c) Indicating the oxidation state of the cation

2) Magnesium oxide, MnO

The name of the compound describes the the chemical composition of the compound by

a) Making mention of the elements in the compound, which are magnesium and oxygen

b) Specifying the quantity of the elements as one each by leaving out the numbering suffix in the name

c) Indicating the oxidation state of the cation, oxygen, as an oxide with a -2 charge

3) Magnesium Nitrate Mn(NO₃)₂

The name of the compound describes the the chemical composition of the compound by

a) Making mention of the elements and groups in the compound, which are magnesium and bitrate group

b) Specifying the group by the group name which consists of a means to determine the detailed content of the group

c) Indicating the oxidation state of the group, nitrate, which has with a -1 charge

Explanation:

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3 years ago

Can you please answer number 8 thanks

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Well February 29 is a date that usually occurs every 4 years and this is called a leap year.This day is added to the your calendar in leaps years as a corrective measure because the Earth does not orbit the sun in precisely 365 days! hope it helps and have a great day!

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3 years ago

The hydrocarbon C2H4 is a member of the what series.

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Alkene. hope this helps.

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3 years ago

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True or false: Some parasites have complex life cycles where they live in different species of hosts at different stages

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true

Explanation:

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2. Low-density polyethylene, used to make plastic films, is

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from the spaces left between chains when the polymer is

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Explanation:

Polyethylene polymer may be of high or low density. Whether the polymer is of high or low density depends on the arrangement of the polymer chains.

If the polymer chains are close together such that the resultant polymer is crystalline with chains packed closely, we have high density polyethylene.

On the other hand if the chains are not close together and there are spaces left between chains when the polymer is formed, then we have low density polyethylene.

Hence, low density polyethylene gets its name from the spaces left between chains when the polymer is formed.

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