Answer:
B
Explanation:
962,320 J
230 nutritional Calories in Joules is 962,320 J
261.162 grams. Use the equation n=M÷Mr.
Answer:
B
Explanation:
Trust me I've had problems like these
I'm not 100% sure but I'm leaning towards D. :)
Answer: 42.14 g
Explanation: calcium nitrate - 
, the molar mass of calcium nitrate = 164 g
<h3> formula used =

= no of moles </h3>
mass required =
=
g