Shubham Jha - Class 9
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Which of the following has maximum number of atoms?
Anonymous Quiz
35%
18g of co2
46%
18g of co4
13%
12g of co4
6%
12g of co2
👍1
Percentage of calcium in calcium carbonate is
Anonymous Quiz
37%
40
40%
38
21%
32
2%
34
How many times an atom of sulphur is heavier than an atom of carbon?
Anonymous Quiz
32%
4/3
37%
6/3
24%
8/3
8%
None
The formula unit mass of Ca3(PO4)2 is ……………
Anonymous Quiz
36%
320
41%
310
18%
203
6%
103
Elements are represented by symbols and molecules by …………….
Anonymous Quiz
28%
Chemical name
55%
Chemical formula
15%
Chemical bonding
2%
None