Answer:
Explanation:
Most hypothesis involves the statement of a problem. It is one of the easiest way to explain results from experiments and a pool of observation.
To create a hypothesis about how soil acidity affects the growth of blueberries, we must bear in mind the follow:
The dependent variable is the growth of the blueberries.
The independent variables are the chemicals we might be adding to the soil to increase the acidity.
Our best hypothesis would be "how the addition of different pH of acid to soil affects the growth of blueberries".
A buffer works by bonding with the added H+ or OH- in solution
A buffer is simply a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid. Buffers work by reacting with any added acid or base to control the pH.
Hope this helps
Brazil
United States
Japan
Chile
USSR
Answer:
ussr us france and brazil
Explanation:
group4, period4
Explanation:
from the electron configuration,
the element is Titanium
and it's has 22 electrons on it's shells , so wen you place it on the periodic table, you will see that it's in group4period4
Answer:
1.75 atm
Explanation:
When the pressure that a gas exerts on a sealed container changes from 1.75 atm to 2.64 atm, the temperature changes from 315 K to 475 K.
(2.64 atm) x (315 K / 475 K) = 1.75 atm
The pressure and temperature of a gas in a sealed container are directly proportional. An increase in temperature would imply that the pressure also increased.
Answer:1.75 atm
Explanation:
In a closed system, increase in pressure leads to increase in temperature. Using pressure law, P1/T1 = P2/T2
Data =
P1 =?
P2 = 2.64 atm
T1 = 315k
T2 = 475k
From the equation above,
P1 = P2 * T1 / T2
P1 = 2.64*315 / 475
P2 = 1.75 atm