Just do it one at a time. How is heart rate affected by exersice? Well, think about it; When you run, your heart rate goes up. When you rest, it goes down.
Take you time, think carefully and you'll get it.
How are bean seeds affected by water with detergent in it? Well it's not pure water. it's like feeding it soap and expecting it to grow..
Answer:
157.29 Torr
Explanation:
This question may be solved by the mole fraction.
Mole fraction → Moles of gas / Total moles = Partial pressure of gas / Total pressure
If the atmosphere is about 21% you assume that the mole fraction is 0.21 so:
0.21 = Partial pressure of gas / Total pressure
0.21 = Partial pressure of gas / 749 Torr
Partial pressure of the gas = 749 Torr . 0.21 → 157.29 Torr
I would say a. at the equator to the poles or maybe c. cold air rising and warm air sinking.
Answer : The number of grams of oxygen react must be, 170.4 grams.
Solution : Given,
Mass of 
= 46.85 g
Molar mass of = 44 g/mole
Molar mass of 
= 32 g/mole
First we have to calculate the moles of .
Now we have to calculate the moles of
The balanced chemical reaction is,
From the balanced reaction we conclude that
As, 1 mole of react with 5 mole of
So, 1.065 moles of react with 
moles of
Now we have to calculate the mass of
Therefore, the number of grams of oxygen react must be, 170.4 grams.
Answer:
0.8 liters.
Explanation:
By proportion the volume of the new solution will be (12/1.5) * 100 ML
= 800 ml = 0.8 liters.
