The order is
1CH4 + 2O2 ----------- 1CO2 + 2H2O
please give me brainliest
M=147/9 x8 m=15kg
The mass of falling rock is 15kg.
Answer:
She will need to add 5.6 cups of water
Explanation:
Hi there!
Marta has to dilute the citric acid to 5%.
The dilution factor will be 12%/ 5% = 2.4. Then, Marta will need to dilute the citric acid 2.4 times. If she has 4 cups of the solution, she will need to add water until she completes a volume of (4 cups ·2.4) 9.6 cups to reach the desired concentration.
Then, she will need to add 9.6 - 4 cups water = 5.6 cups of water
Another way to solve this is by using the fact that the mass of citric acid in the concentrated and diluted solution is the same. Then:
mass citric acid concentrated solution = mass citric acid in dilute solution
mass of citric acid = concentration · volume
Then:
initial concentration · volume = final concentration · volume
12% · 4 cups = 5% · volume
volume = 12% · 4 cups / 5% = 9.6 cups
The final volume of the solution at 5% will be 9.6 cups. So Marta will need 9.6 cups - 4 cups = 5.6 cups water
Answer/Explanation:
Heat from the sun hits the ground and is absorbed. The higher you go, it gets more colder due to the fact that the air doesn't hold onto the radiation as it goes straight through the ground, which is why the top of mountains are very cold, and people are able to die in minutes.
