Answer: it would release heat because the thermal energy it absorbed to become a gas. so it would release heat. hope this helps :)
Explanation:
D. 6 protons and 7 neutrons
As proton remains constant
Answer:
Explanation:
Ok so an atom is each ball. So in the first one there are 5 balls. In the second one there are 4 and so on. A molecule contains more than two balls. So they are all molecules. For the counting reactants and products, count how many balls are to the left of the arrow which is your number of reactants and count the balls to the right to find the number of product atoms.
1- metal and non metal
2- true
3- chlorine
Answer is valence electron, they all have total of 2 valence electron.
remember group number = valence electron
