Answer:3.6 x 101 or 8.77 x 10-1
Answer: 92 kg
Explanation:
because the rest of them are increasing weight or not changing at all and if you were to go to the moon you would weigh less
An hour is 60 minutes. So you multiple the hot by 60. You get 180 minutes plus the 75 remaining minutes. The answer is 255
<em>Answer </em>
<em>no</em><em>. </em><em>of</em><em> </em><em>moles</em><em> </em><em>=</em>
<em>
</em>
so, <em>mass</em><em> </em><em>(</em><em>g</em><em>)</em><em>=</em><em> </em><em>no</em><em>. </em><em>of</em><em> </em><em>mol</em><em>es</em><em> </em><em>×</em><em> </em><em>molecular </em><em>wight </em>
Explanation:
Li molecular wight equal to 6.941
mass (g)=3.29×104 <em>mol</em><em> </em><em>×</em><em>6</em><em>.</em><em>9</em><em>4</em><em>1</em><em> </em><em>=</em><em>2</em><em>3</em><em>7</em><em>4</em><em>.</em><em>9</em><em>3</em><em>g</em><em> </em><em>of</em><em> </em><em>lithium </em>
Answer:
720 000
Explanation:
7.2
×
10
5
is already expressed in
standard form
I believe you mean express as
original number
To do this consider
10
5
or more generally
10
n
where n is an integer.
• If n > 0
move decimal point n places to the right
• If n < 0
move decimal point n places to the left
here n = 5 > 0, hence move decimal point 5 places to the right.
⇒
7
∙
2
→
720000
∙
⇒
7.2
×
10
5
=
720
000
Explanation: