Answer:
less dense
Explanation:
the reason that the density would be lower is because the air bubbles keep the maximum amount of atoms possible from being in that space. imagine pouring a glass of soda from a freshly opened bottle, at first it looks like there's a lot in the glass but as the bubbles dissipate, there's less and flat soda appears to have even less in the glass. i hope this analogy helped :)
Answer:
C
Explanation:
The law of partial pressure states that if there is a mixture of gases which do not react chemical together, then the total pressure exerted by the mixture is the sum of the partial pressures of the individual gases that make up the mixture
How much hydrogen chloride acid was used?
72.916 g of hydrochloric acid was used.
Given:
Mass of Zn = 65.39 g
Mass of 
=136.29 g
Mass of 
= 2 g
Equation:
The chemical equation for the reaction of zinc with hydrochloric acid:
Zn + 2HCl → Zn 
+
Hydrogen gas is created when zinc combines with hydrochloric acid, which causes the process to bubble ferociously. Another sign that a chemical reaction is taking place is the generation of a gas.
Calculation:
A number of equivalents equate:
Number of equivalents = 
x 1000 x equivalent factor
x 1000 x 1 = 
x 1000 x 2
= 36.458 x 2
= 72.916
Learn more about the calculation of mass here,
brainly.com/question/21290034
#SPJ4
(g solute/g solution)*100 = % mass/mass
30 g / 400 * 100
0,075 * 100
= 7,5% w/w
hope this helps!
Answer:
2Mg + O2 → 2MgO
Explanation:
In all conbustion you should know, that reactans are an specific compound and O2, so the products must be CO2 and H2O, or in this case, the corresponding oxide.
