Answer:
D
Explanation:
Answer is the last one.......
Answer:
B. The air pressure would increase 2X
Explanation:
Pressure = density × acceleration due to gravity × height
p = ρ × g × h
Pressure is force per unit area
p = F/a
Density is mass per unit volume
Pressure is directly proportional to density hence, any change in the density of a body directly affects the change in pressure of the body and vice versa.
Answer:
Percent yield of hydrogen is 87.096%
Explanation:
Theoretical yield = 155g
Experimental yield = 135g
% yield = [experimental yield / theoretical yield] * 100
% yield = (135 / 155) * 100
% yield = 0.87096 * 100
% yield = 87.096 %
The percentage yield of hydrogen is 87.096%
Answer:
Acids: ![HCl, C_5H_5NH^+](https://tex.z-dn.net/?f=HCl%2C%20C_5H_5NH%5E%2B)
Bases:
Explanation:
According to the Bronsted-Lowry acid-base theory, an acid is a proton donor and a base is a proton acceptor. In this case, notice that
donates a proton, since after it loses a proton, it becomes a chloride anion. Therefore,
is a Bronsted acid.
Similarly,
is a proton acceptor and, therefore, a Bronsted base, since it becomes
.
If we look at the reverse reaction, chloride can gain a proton to become
, meaning it's a conjugate base.
Finally,
is a conjugate acid, since it can donate a proton to chloride.
Answer:
Metalloids are found along the line between metals and non-metals on a periodic table. They are chemical elements that have properties in between those of metals and non-metals. ... Noble gases are all in group 18 on a periodic table.
Explanation: