Answer:
34.4
Explanation:
You would divide the mg by 1000 to get the number of grams.
Your answer is the last option, the explosion of fireworks. This is because all of the other options are physical changes because they don't change the substance, they only affect it in some way. However the explosion of a firework clearly changes a substance inside the initial 'rocket' into fireworks.
I hope this helps!
Atoms with the same amount of neutrons are said to belong to the same element.
Answer:
29.232 l
Explanation:
6.023x10^23 mole of nitrogen =22.4 l
7.83×10^23 mole of nitrogen =
22.4/(6.023×10^23)×7.83×10^23
=29.232 l
Answer:
A substance composed of two or more metals is called an alloy
Explanation:
