Answer:
O2 + 2H2 → 2H2O MgSO4 + CaCl2 → MgCl2 + CaSO4 2Al + 6HI → 2AlI3 + 3H2 FeCl2 + Na2CO3 → FeCO3 + 2NaCl 2AgNO3 + Na2S → Ag2S + 2NaNO3
<span>D) Eectrons in covalent bonds are not always shared equally.</span>
Answer: one thing you may notice when you touch metal is a small electric shock, and depending on the temperature, it could be hot, or cold.
It means the relationship between two systems connected only by a diathermic wall.
Answer:
To check if it's properly cleaned.
Explanation:
When you finish using a microscope, you have to take out all your samples you were using and make sure it is completely clean so that no further contamination affects future sample analysis.
Also when you begin to use it, make sure it is clean so that when you analyze your sample(s) are free from other unexpected agents.
