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Science

10th Grade

Used 1+ times

Counting Atoms in Molecules
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40 questions

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1.

DROPDOWN QUESTION

30 sec • 2 pts

How many Hydrogen atoms are in 4 H2O? ​ (a)   How many oxygen atoms? ​ (b)  

8
4
1
2
3
5
6
7
9

2.

FILL IN THE BLANKS QUESTION

30 sec • 1 pt

How many O's are in Al₂(SO₄)₃

(a)  

3.

DRAG AND DROP QUESTION

30 sec • 4 pts

3(NH₄)₂CrO₄

Number of N: ​ ​ (a)  

Number of H: ​ (b)  

Number of Cr: ​ (c)  

Number of O: ​ (d)  

6
24
3
12
4
8
1
2
9

4.

DRAG AND DROP QUESTION

30 sec • 5 pts

How many elements are in 2 C6H12O7? (a)  

How many C: ​ (b)  

How many H: ​ (c)  

How many O: ​ (d)  

How many TOTAL atoms: ​ (e)  

3
12
24
14
50
7
6
25
52
60

5.

DRAG AND DROP QUESTION

30 sec • 3 pts

2 CH2CO3OH

Number of C: ​ (a)  

Number of H: ​ (b)  

Number of O: ​ (c)  

4
6
8
2
3
1
5
7
9
10

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many Sulfur's are in Al₂(SO₄)₃

4

3

7

12

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many Nitrogen atoms are in the in H3C2ON5?

2

3

4

5

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