To measure the kinetic engery from the inside and outside of something to be able to tell how hot or coll something is.. without touching it also
Answer:
D
Explanation:
It could come from anybody of water around you that had some water evaporated.
Collect the salt water and put it in something where it can boil under fire or any other heat source capable to bring the water to boiling temperature. You can consume the collected water safely , but wait for its temperature to fall, except if you need it to be hot.
Answer:
d
Explanation:
a) This is not an equation.
b) This is not an equation.
c) The reactant side has 1 Na and 2 O while the product side has 2 Na and 2 O, therefore it is not balanced
d) The reactant side has 4 H and 4 O and the product side has 4 H and 4 O, therefore it is balanced.
