If you search the question up on google you may find the whole work sheet that’s what I used to do when I was in middle school!
The law of conservation of mass states that matter is neither created nor destroyed in chemical reactions. in any chemical reaction, the total mass of the products always equals the total mass of the reactants.
Symbol: Cl
Number of Neutrons: 18
Atomic Number: 17
Melting Point: -100.98 °C (172.17 K, -149.764 °F)
Number of Protons/Electrons: 17
Atomic Mass: 35.4527 amu
Answer:
6.67 moles
Explanation:
Given that:-
Moles of hydrogen gas produced = 10.0 moles
According the reaction shown below:-
![2Al + 6HCl\rightarrow 2AlCl_3 +3H_2](https://tex.z-dn.net/?f=2Al%20%2B%206HCl%5Crightarrow%202AlCl_3%20%2B3H_2)
3 moles of hydrogen gas are produced when 2 moles of aluminium undergoes reaction.
Also,
1 mole of hydrogen gas are produced when
moles of aluminium undergoes reaction.
So,
10.0 moles of hydrogen gas are produced when
moles of aluminium undergoes reaction.
<u>Moles of Al needed =
moles = 6.67 moles</u>
Answer:
i think it is b and a
Explanation:
because it gathers to gather but mass might change just because it it is dissolving. and phase change because it may not do anything