the correct number of significant digits
addition= -3.220g = 4 significant digits.
subtract= -5.820g = 4 significant digits
<h3>How are significant digits determined?</h3>
- Use the following three rules to determine how many significant figures are present in a number:
- Digits that are not zero are always important. Any zeros in the range of two significant digits are noteworthy.
- ONLY in the decimal section are a final zero or following zeros important.
<h3>What are examples of significant digits?</h3>
- Any two non-zero digits that are separated by a zero are important. For instance, the number 108.0097 has seven significant digits.
- Every zero that is both to the right and left of a non-zero digit and the decimal point is never meaningful.
- For instance, the number 0.00798 had three significant digits.
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Answer:
Well unless you have your testicales removed but I don't really know
The number of moles of Nitrogen : == 7.975
<h3>Further explanation
</h3>
Given
9.60x10²⁴ molecules of nitrogen dioxide (NO2)
Required
The number of moles
Solution
Reaction
N2 + 2O2 → 2NO2
moles of NO2 :
= 9.6 x 10²⁴ : 6.02 x 10²³
= 15.95
From the equation, mol N2 :
= 1/2 x mol NO2
= 1/2 x 15.95
= 7.975
The number of molecules :
= 8 x 6.02 x 10²³
= 4.816 x 10²⁴
1. Which law is associated with inertia?
2. If you increase the force in an object what happens to the acceleration?
3. If you use the same force on a less massive object what happens to the acceleration?
4. Which law states force is dependent on the mass and acceleration of an object?
5. What causes an object to slowdown or speed-up?
HOPE IT HELPS YOU
I think the difference is that the options are different state of matter.
