Answer:
11,700
Explanation:
Since the exponent is negative you move the decimal point to the right.
Is there any answer so I can answer it
A substance that donates electrons to form a covalent bond. So the answer is B
Answer is: mass of HCl is 15,6 g.
Chemical reaction: Mg + 2HCl → MgCl₂ + H₂.
m(Mg) = 5,2 g.
n(Mg) = m(Mg) ÷ M(Mg).
n(Mg) = 5,2 g ÷ 24,3 g/mol.
n(Mg) = 0,213 mol.
From chemical reaction: n(Mg) : n(HCl) = 1 : 2.
n(HCl) = 0,426 mol.
m(HCl) = 0,426 mol · 36,45 g/mol.
m(HCl) = 15,6 g.
Answer:
graph 2
Explanation:
Graham's law:
∴v1: gas diffusion rate 1
∴ v2: gas diffusion rate 2
∴ M1: gas molecular weight 1
∴ M2: gas molecular weight 2
Let Y = R = v1/v2 and X = M2/M1
⇒ Y = √X
the graph for the function Y = √X; is as shown in graph 2.
