The Relative Formula Mass of carbon dioxide is 44. This may also be called the Relative Molecular Mass (RMM), since carbon dioxide is a molecule.
Answer:
d The energy from the sun heated the water, causing it to evaporate.
Explanation:
The correct description of what happened is that the energy from the sun heated the water and causes it to evaporate completely.
Evaporation is a phase change process in which liquid is converted to gases. This occurs when a liquid gains considerable amount of energy. The molecules then breaks free from the bond holding compound place.
- Option A is wrong because the energy from the sun does not cause condensation i.e. change from gas to liquid.
- The water on the seat does not boil, it simply evaporates. So, option B is wrong.
- When heat energy is added, it does not cause cooling of water. So option C is wrong.
Answer:
water is visible to the naked eye
Explanation:
how many things do you have to list
Answer:
14000 mg he did take for the two weeks
Explanation:
Try to reason this problem:
1 day has 24 hours
If our patient takes the pill every 6 hour, he will take 4 pills per day
1 week has 7 days
So, in 2 weeks we have 14 days.
As 4 pills are taken each day, at the end of the 2 weeks he would have taken 56 pills.
Let's make a rule of three:
1 pill weighs 0.250 g
Then 56 pills weigh (56 . 0.250) = 14 g
We convert g to mg
14 g . 1000mg / 1 g = 14000 mg