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serious [3.7K]
3 years ago
8

Which of the following is a solid fuel (multicorrect)

Chemistry
2 answers:
IRINA_888 [86]3 years ago
3 0

Answer:

the answer is coal

Explanation:

expeople1 [14]3 years ago
3 0
I think the answer is c & d because you burn coal and wax
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What happens to iron oxide during decomposition
elena55 [62]

Answer:

it gets reduced from a +3 oxidation to a 0.

Explanation:

the decomposition of iron oxide to elemenTal can be represented by the following equation: iron oxide (Fe203), the oxidation state of iron is +3 while that of oxygen is -2. therefore, the above reaction is a redox (reduction oxidation reaction)

4 0
3 years ago
How can radioactivity be used to help find the age of an object ?
gogolik [260]

Hope this answers your question Mariaduong159

Radiometric Dating. It's used to find the dates of ricks and other objects based on what the known decay rate of radioactive isotopes. Different forms of this method can also estimate the age of natural and man-made materials.

8 0
4 years ago
Adams contain charged particles called protons and electrons. Each proton has a charge of +1 and each electron has a charge of -
solniwko [45]

16 protons and 18 electrons gives the atom a -2 charge because there are 2 more electrons than protons. If it were 16 protons and 16 electrons, the charge would be 0 or neutral.

5 0
3 years ago
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If the products of a reaction are Co2 and 2H20, what is known about the<br>reactants?​
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Reactant : A combustion of hydrocarbon.

Explanation:

It is known that when hydrocarbons are involved in combustion, they produce carbon dioxide and water.

CxHy + (x+y/4)O2 ===> xCO2 + y/2H2O

4 0
3 years ago
Butane - ethane - methane - propane: What do these hydrocarbons have in common? A) The same number of carbons present. B) They a
Paraphin [41]

Answer:

C) They all have single covalent bonds.

Explanation:

The given hydrocarbons Butane,Ethane,Methane,Propane belongs to alkane group.

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The elements of this group makes bond by sharing of electrons that means they form single covalent bond.

Butane have 4 , Ethane has 2, Methane has 1, and Propane has 3 carbon atoms.

Since they have different number of carbon atoms so their structural formula also differs.

3 0
4 years ago
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