Density = mass/volume = 316/22.5 = 14.045g/mL.
Answer:
B. Carbon shares 2 pair of electrons with each oxygen.
Explanation:
- Carbon dioxide is formed from combustion reactions, which involves a reaction between carbon and oxygen gas.
- Carbon dioxide molecule is formed from one carbon atom and two oxygens. As an element, carbon only has 4 outer shell electrons and oxygen 6.
- The two atoms require to gain electrons to achieve a stable configuration; carbon require to gain four electrons and oxygen requires two electrons.
- Double covalent bonds form between the atoms, where two electrons from each atom are shared making 4 bonding electrons in total.
Hope it helped!
Kg = 3.20 x 10^4 troyounces x 0.0311kg/1 troy ounce = 995.2 kg
Certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria.
