Answer:
Explanation:
Initial pressure, P = 125 kPa
Initial temperature, T = 25.0°C
If new pressure is increased to P' = 150.0 kPa
We need to find new temperature. According to Gay-Lussac's law,
P ∝ T
or
So, the new temperature will be 
.
Answer:
+1
The oxidation state of H+ = +1. The Oxidation state of Zn2+ = +2. The oxidation state of H2 = 0. The sum is equal to zero because there are 2 H+ ions.
Explanation:
The answer is 9.03 × 10²⁴ molecules of oxygen!
- <u>Step 1</u> 6.02 × 10²³ molecules : 1 mol = x : 15 mol
- <u>Step 2</u> x = 6.02 × 10²³ molecules * 15 mol * 1 mol
- <u>Step 3</u><em> </em> x = 90.3 × 10²³ molecules
- <u>Step 4</u> x = 9.03 × 10 × 10²³ molecules
- <u>Step 5</u> x = 9.03 × 10²³⁺¹ molecules
- <u>Step 6</u> { x = 9.03 × 10²⁴ molecules }
Four significant figures would be B. Because 0's before the decimal are not important, but 0's after the decimal are.
The maximum number of electrons that an energy level can hold is determined from the formula 2n^2 equals the total number, where n is the energy level. The first energy level holds 2*1^2=2 electrons while the second holds 2*2^2= 8 electrons.
