Answer- im pretty sure it's 2
Answer:c
Explanation: atoms make matter
Answer:
<h3>The answer is 900 J</h3>
Explanation:
The potential energy of a body can be found by using the formula
PE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 10 m/s²
From the question we have
PE = 45 × 10 × 2
We have the final answer as
<h3>900 J</h3>
Hope this helps you
Answer:
Measure 20mL of the stock
Explanation:
All we need to do is to find the volume of the stock solution needed. This is illustrated below:
C1 = 2M
V1 =?
C2 = 0.400 M
V2 = 100mL
C1V1 = C2V2
2 x V1 = 0.4 x 100
Divide both side by 2
V1 = ( 0.4 x 100) /2
V1 = 20mL
Therefore, to prepare the solution, we will measure 20mL of the stock solution and make it up to the 100mL mark.
Answer:
11.1×10^12
Explanation:
β4= K1× K2 × K3 × K4
β4= 1.90×10^4 × 3.90×10^3 × 1.00×10^3 ×1.50×102
β4=11.1×10^12
The overall formation (stability) constant β4= K1× K2 × K3 × K4. Hence the answer.
