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Counting Atoms Bell Ringer Duvall
By Alicia Duvall
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Last updated almost 2 years ago
6 questions
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Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
Question 6
6.
How many atoms of each element are in the molecule below?
(NH
4
)2SO
4
N-4, H-4, S-8, O-8
N-6, H-4, S-6,O-6
N-1, H-4, S-2, O-8
How many atoms of oxygen are on the reactant side of chemical reaction below?
CO + H2O → CO2 + H2
2
3
4
6
How many atoms of hydrogen are on the product side of the chemical reaction below?
2H
2
O + O
2
→ 2H
2
O
2
6
4
8
2
What is the atomic mass of the element W?
22.99
106.42
281
183.84
How many protons does Ra?
24
70
65
88
Elements and compounds are similar in some ways and different in others.
The chemical formula for carbon is Ca
An elements symbol must start with a capital letter
A compound such as sodium can have several chemical formulas
Elements are represented by a single chemical formula