<span>64.94
First, write out an expression about what we know
0.6915 * 62.93 + 0.3085 * x = 63.55
Now solve for x
0.6915 * 62.93 + 0.3085 * x = 63.55
43.5161 + 0.3085 * x = 63.55
0.3085 * x = 20.03391
x = 64.93972
Rounding the answer to 2 decimal places gives x = 64.94</span>
Answer:
40J
Explanation:
I think about that why I don't know what is the answer
Answer:
24) F. 3 mol.......ratio of hydrogen and oxygen is 2:1 , if hydrogen 6 then oxygen 3
25) B. 2.5 moles ......take ration fo 2RbNO3 and O2 which is 2:1 then if RbNO3 has 5 moles these O2 will have 2.5 moles
Answer:
a. 1/3
In the picture- D. 4
Explanation:
The product of the gradients of perpendicular lines =-1
m1m2=-1
Given an equation of a line in the form y=mx+c, m is the gradient of the line.
For y= -3x-9, m=-3
m1m2=-1
-3×m2=-1
m2=1/3
The gradient of the perpendicular line is 1/3
For the question in the picture, y=-1/4x-9, m=-1/4
m1×m2=-1
-1/4m2=-1
m2=4
The slope of the line perpendicular to y=-1/4x-9 is 4
Answer: Option (B) is the correct answer.
Explanation:
According to Le Chatelier principle, when a system is in equilibrium then any change in the reaction will shift the equilibrium in a direction which is opposing the change.
For example, when heat is added to a system the molecules will gain kinetic energy. So, rate of reaction will increase hence, product formation will increase but equilibrium will shift in the opposite direction.
Hence, we can conclude that according to Le Chatelier's principle, the reaction shifts to remove the heat if heat is added to a system.
