Answer:
B. Experiments
Explanation:
conducting an experiment is an example of a research method while the other choices are not.
Hope I was able to help you!
That would be a decomposition reaction
Step OneFind the moles of HCl
C = 1.0 mol/L
V = 75 mL = 75 / 1000 = 0.75 L
Note the concentration is in Liters.
<em>Formula</em>
n = C*V
<em>Solve</em>
n = 1.0 * 0.075
n = 0.075 moles
Step two Adjust the number of moles of HCl
How every mol of H2 produced, you will require 2 mol of HCl

2/1 = 0.075/x Cross multiply
2x = 0.075 Divide by 2
x = 0.075 / 2
x = 0.0375
moles of H2 <<<<<<<<< Answer
Answer:
How much an object weighs is the answer
A cation is smaller than its parent atom.
Therefore, here a sodium ion is smaller than the neutral sodium atom.
Reason: Since the sodium atom loses an electron to form an electropositive ion(cation), its nuclear charge increases(the number of protons exceeds the number of electrons) and the orbital electrons are pulled with a greater energy.
Thus,the sodium ion shrinks in size.