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Vesna [10]
3 years ago
8

I need some chem help :(

Chemistry
1 answer:
alexandr402 [8]3 years ago
7 0
Hi, can you post what you need help with??
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A. 6.07 x 10-15<br> How many significant figures are there in this equation
Harman [31]

Answer:

3

Explanation:

In scientific notation, the number of integers in the first part will always be the amount of significant figures.

For example,

1) 1.542505 x 10^17 =7 significant figures

1) 1.54 x 10^17 =3 significant figures

8 0
3 years ago
2H2 + O2 + 2H20
kondaur [170]

Answer:

Hello

The answer is 25gr H2O

Explanation:

50grH2×1 molH2/2 gr H2×2mol H2O/2molH2=25gr H2O

8 0
3 years ago
QUESTION 1
Svetlanka [38]

Answer:

C

Explanation:

Because nothing is left at the end of the reaction.

3 0
3 years ago
As the [ht] in a solution decreases, what happens to the [OH???
dimulka [17.4K]
Why you saying we can download an answer we’re here for an answer
6 0
2 years ago
How many significant figures are in the number 420,000 mi?
Mnenie [13.5K]

Answer:

2

Explanation:

zeros are not considered sig figs

3 0
2 years ago
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