Answer:
magnesium oxide molecules
Explanation:
this is because the two is before the formula of MgO
Answer:
1
Explanation:
I would say 1 because that configuration has 7 valence electrons. The goal of the atom is to gain a full octet so it just needs to gain 1 more electron to get the full octet. To get the one electron to fill the valence shell it would only need to have 1 covalent bond.
I hope this helps. Let me know if anything is unclear.
The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).
They have the same density because a material, no matter how much of it there is, will always be a certain density. A 40g ball of iron has the same density as a 1g ball of iron.
DDT stands for Dichlorodiphenyl Trichloroethane.DDT was used in theas a pesticide Second World War to protect the troops and civilians from the spread of malaria and other diseases. <span>Today DDT is used for insect control.
</span>But DDT harms the environment and the human health.
<span>There is an evidence that links DDT with severe declines in bald eagle populations due to thinning eggshells.</span>
So, DDT is dangerous environmental pollutant because it is toxic.
