Answer:
To find the mass percent of hydrogen in hydrogen chloride, we must divide the weight of the hydrogen atom alone by the weight of the entire molecule. Then we multiply by 100% to find the percentage. Thus, 2.77% of the mass of hydrogen chloride is hydrogen.
Explanation:
i hope you understand better
Answer:
2.67g Ni
Explanation:
To convert from moles to mass, use molar mass as a conversion factor.
Nickel has a molar mass of 58.69g/mol.
0.0455mol (
) = 2.67g Ni
Answer:
5. 2 Al 3 Cl2 and 2 AlCl3
Cl2 is limiting
(It has the highest coefficients, but that's not always true. If they give you the number of grams for each make sure to work the math out)
6. C
(As the pressure increases there is less volume for the molecules to move around, therefore the molecules will be closer together, allowing for more collisions.)
7. b
(if the temperature is increases so will the rate of the reaction. The increase in temperature will allow for the molecules to move at a faster rate, allowing for more collisions (reactions) between them.
8. d
(dynamic equilibrium is the state at which the reaction is consistently moving, there fore the amounts should remain the same)
9. A
(a catalyst will lower the the pathway of activation energy because it's meant to speed up a reaction)
bro youre on your own after this, im tired
