Answer:
<h3>The answer is 0.73 g/mL</h3>
Explanation:
The density of a substance can be found by using the formula

From the question
mass = 620 g
volume = 850 mL
We have

We have the final answer as
<h3>0.73 g/mL</h3>
Hope this helps you
1 mole of h3bo3...........6.023*10²³ each h and B and 0 so we will have 3hydrogen+ 1 B+3 oxygen = 7*6.023*10²³ atoms
1 mole .......7*6.023*10²³atoms
4 moles ........x atoms
x=4*7*6.023*10²³.
Answer:
the name for NO is nitrogen monoxide
Answer:
That unknown substance is water
Explanation: