Answer:
C, between P and Pb, largest atom is Pb
Answer:
NH3
Explanation:
It’s a polyatomic ion. You’ll just have to memorize it!
Hi there!
To solve, we can use dimensional analysis to convert from molecules to grams.
We must use Avogadro's number (6.02 × 10²³) in converting from molecules to moles.
After converting, multiply by the atomic mass, or grams per mole.
The answer must show the lowest number of significant number of significant places in the decimal region
Explanation:
5.67 + 0.00032 adds up to 5.67 because the least number of significant figures in the decimal place 2.
- To add up two numbers, that are in decimal places.
- Identify the number of significant figures in them
- Their addition should sum up to a value no more than the significant figures to the right of the decimal having the lowest accuracy.
5.67
+ 0.00032
to the right of the decimal, they have two significant numbers.
The answer should also be this way.
learn more:
Significant figures brainly.com/question/6443737
#learnwithBrainly
Since the mass of a single popcorn kernel is not given, lets us assume that it is 1 gram
Now:
1 mole of popcorn kernels contain kernels
Since:
1 kernel weighs 1 gram
Then,
kernels would weigh grams