Answer: The phases occur because the Sun lights different parts of the Moon as the Moon revolves around the Earth. That means the reason we see different phases of the Moon here on Earth is that we only see the parts of the Moon that are being lit up by the Sun.
Explanation:
Hope it helps you if not sorry
Answer:
9.46 M
Explanation:
Molarity is a measure of the molar concentration of a solution. It can be calculated by the following formula
Molarity = number of moles/volume
Using moles = mass/molar mass
Molar Mass of Ammonium sulfate (NH₄)₂SO₄ =
{14 + 1(4)}2 + 32 + 16(4)
= {14 + 4}2 + 32 + 64
= 18(2) + 96
= 36 + 96
= 132g/mol
mole = mass/molar mass
mole = 62.42 ÷ 132
mole = 0.473mol
- Molarity = mole ÷ volume
Volume = 50.0 mL = 50/1000 = 0.05 L
Molarity = 0.473 ÷ 0.05
Molarity = 9.46 M
Answer:
Control
Explanation:
A scientific control represents an experimental condition that scientists set up to be able to properly interpret their results. A control is used to minimize variation in the results.
For example, in this experiment studying plant growth, it could have been particularly cloudy during the experiment, meaning sunlight might have been unusually low. If we didn't have the control, we wouldn't be able to tell if any changes in growth were a result of the cloudiness, or because of what we did during our experiment. Having a "normal" control allows us to compare our results within the experiment.
Answer:
C Fossil fuels will run out soon
Answer:
2 mole
Explanation:
Hydrogen has 2 atoms per molecule
