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Homework Week 12: Chemistry

Authored by Charles Jones

Chemistry

10th Grade

Used 28+ times

Homework Week 12: Chemistry
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20 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

The compounds or elements present at the end of a reaction 

reactants
catalyst
products
energy 

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

The compounds and elements that are present at the beginning of a reaction:

reactants
catalyst
products
energy 

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

An electron is

positively charged

neutral

negatively charged

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

atomic number is

the number of protons

the number of electrons

the number of neutrons

the location of an atom on the periodic table

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Atomic Mass is the number of

protons and neutrons in the nucleus of an atom

protons and electrons in the nucleus of an atom

neutrons and electrons in the nucleus of an atom

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What are the 3 particles that make-up the atom?

protons, neutrons, and isotopes
neutrons, isotopes, and electrons
positives, negatives, and electrons
protons, neutrons, and electrons

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

How many neutron are in the atom "K"?

7

2

39

20

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