percentage of zinc= 5.985/20 X 100= 29.5%
let x represents zinc and y be magnesium so
Zinc(s) + 2HCl(aq) -----> ZnCl2(aq) + H2(g)
Mg(s) + 2HCl(aq) -----> MgCl2(aq) + H2(g)
1.152 g of hydrogen gas=( x/65.3 + y/24.305) 20
= 3.08 x10^-2 + 0.8295-8.30
=x=5.985
y= 4.015
percentage of zinc= 5.985/20 X 100= 29.5%
The hydrogen gas escapes, so the two products of Zinc Chloride and Magnesium Chloride will then react with Silver Nitrate. Again, I combine both of the reactions
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LiBr is the ionic compound (C)
At room temperature:
a. Gold is a solid, as in the gold jewelry that most people have.
b. Gasoline is a liquid, as it is pumped in cars to use as fuel.
c. Oxygen is a gas, as we breathe it in from the atmosphere.
d. Neon is a gas, it is one of the noble gases in the periodic table.
e. Olive oil is a liquid, as it is used in cooking.
f. Sulfur is a solid, and it can be found naturally in mining.
g. Mercury is a liquid which is often seen in thermometers.
Answer:
9.72 grams of Br
Explanation:
This is the salt: MgBr₂ (Magnesium bromide)
1 mol of MgBr₂ has 1 mol of Mg and 2 mol of Br
Molar mass MgBr₂ → 184.11 g/m
So the rule of three will be:
184.11 g of salt have 2 moles of Br
11.2 g of salt have (11.2 . 2)/184.11 = 0.122 moles of Br.
Molar mass Br = 79.9 g/m
Mol . molar mass = mass → 0.122 m . 79.9 g/m = 9.72 g
