Answer: Two boxes of B would be required.
Explanation: From given information, A = 10 grams and B = 5 grams
C is made up of one A and one B box.
So, mass of C = mass of A + mass of B
mass of C = 10 g + 5 g = 15 g
number of boxes of C in 30 grams will be =
= 2 boxes
So, if we want to make the two boxes of C then we also have to double the number of boxes of A and B.
Hence, to make 30 grams of C, we need to take two boxes of B since each box of C requires one box of A and one box of B.
Answer: is a reactant; it is present before the reaction occurs.
Explanation:
In a chemical reaction the chemical formulas written before the arrow are described as reactants as they react together to form products which are written after the arrow.
Thus and HCl are reactants here whereas
,
and
are products.
Answer:
The solubility of methylacetylene is 0,11 g L⁻¹
Explanation:
Henry's law is a gas law that states that the amount of dissolved gas in a liquid is proportional to its partial pressure above the liquid.
The formula is:
C = kH P
Where C is solubility of the gas (In mol/L)
kH is Henry constant (9,23x10⁻² mol L⁻¹ atm⁻¹)
An P is partial pressure (0,301 atm)
Solving, C = 2,78x10⁻³ mol L⁻¹. In grams per liter:
2,78x10⁻³ mol L⁻¹ₓ = <em>0,11 g L⁻¹</em>
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I hope it helps!
Answer:
if wrong sorry ok????
