Answer:
The oxidation number of strontium is +2.
Explanation:
3 sf
<span>(Rules:
> Non-zero digits are always significant.
123 - 3sf
> Any zeros between two significant digits are significant.
102 - 3 sf
<span>> A final zero or trailing zeros in the decimal portion ONLY are significant.
4500 - 2 sf
0.04 - 1 sf
0.0013 - 2 sf )
</span></span>
First of all we should know that, 1 Joule = 0.000239 kilocalories.
So, 6.6×
J = 6.6×
× 0.000239 kilocalories
6.6×
J = 15774000 kilocalories
= 1.58 ×
kilocalories
One joule is described as the quantity of electricity exerted when a pressure of 1 newton is implemented over a displacement of 1 meter. Within the SI machine, the unit of labor or electricity is the Joule.
The kilocalorie, or meals calorie, is the quantity of warmth required to elevate one kilogram of water 1 °C. warmness capability is the amount of heat required to raise one gram of material 1 °C beneath steady pressure. A kilocalorie is the amount of warmth required to raise the temperature of 1 kilogram of water one diploma Celsius.
Learn more about joule here:-
brainly.com/question/490326
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The answer is 0.001515, I hope this helps!
The measure of how much solute is mixed in with a solvent is called concentration. It's how much solute was put into the solvent (most likely water) <span />