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chemical reaction and equations 2

Authored by shilpi negi

Chemistry

10th Grade

Used 21+ times

chemical reaction and equations 2
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50 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which information is not conveyed by a balanced chemical equation?

Physical states of reactants and products

Symbols and formulae of all the substances involved in a particular reaction

Number of atoms/molecules of the reactants and products formed

Whether a particular reaction is actually feasible or not

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Chemically rust is

hydrated ferrous oxide

only ferric oxide

hydrated ferric oxide

none of these

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the molecular formula for barium chloride?

BaCl2

BaCl

Ba2Cl

BaCl3

4.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

Reactions in which energy is absorbed are known as _________ reactions.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Oxidation is the loss of electrons from a substance.

True

False

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The reaction between nitrogen and hydrogen to give ammonia is an example of a combination reaction.

True

False

7.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

Unbalanced reactions are also known as _________

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