Robin and Alex are discussing how water molecules form when hydrogen and oxygen atoms combine. Robin writes the following chemic
al equation to explain the formation of water. However, Alex has a different opinion and suggests that the chemical reaction can be better represented by using the equation below. Why does Alex’s equation better represent the reaction? A. For every two molecules of water formed, two hydrogen atoms are needed. B. The number of oxygen atoms is the same before and after the reaction. C. For every two molecules of water formed, one hydrogen atom is needed. D. The amount of product formed should be more than the amount of reactants involved.
For every two molecules of water formed, one hydrogen atom is needed.
Answer: Option C.
<u>Explanation:</u>
The water particle is very simple and basic. A particle is a bit of issue that contains at least two iotas. The logical name for water is H2O. It is called H2O since it has two iotas of hydrogen (H) and one molecule of oxygen (O). There are a great many these atoms in a single drop of water.
A water molecule is formed when two atoms of hydrogen bond covalently with an atom of oxygen.
To express the given concentration of the solution to the same unit as the solubility of the salt, use dimensional analysis. (360 g/ 1 L ) x (1 L / 10 (100 mL)) = 36 g / 100 mL This value is equal to the value of the solubility of the salt which means that the solution is SATURATED.
increases as you move down a group as the number of electrons increases. Therefore, the atomic radius increases as the group and energy levels increase
