Rubidium would exhibit the greatest shielding [ effect. ]
Answer:
The answer is a carbon isotope.
Explanation:
Carbon has 6 protons and electrons so the atom is neutral.
However it is a carbon isotope because it has more neutrons than protons so be aware of that
Answer:
Solution given:
e) The heating of sodium carbonate to produces sodium oxide and carbon dioxide
Solution given:
<u>Balanced</u><u> </u><u>chemical</u><u> </u><u>equation</u><u>:</u>

<u>when sodium carbonate is heated it decomposed and form sodium oxide and carbon dioxide</u>
<u>f</u>) chromium (III) hydroxide plus sulfuric acid
<u>Balanced chemical equation:</u>

<u>When chromium (III) hydroxide react with sulfuric acid double displacement takes place and forms produce chromium(III) sulfate and water.</u>
g) aluminum metal plus chlorine gas

<u>When aluminum metal is added to chlorine gas</u><u> </u><u>Combination reaction takes place and forms aluminum chloride.</u>
Im not sure if this will help but... your subscripts in a balanced equation are used to calculate the molar mass of the compound. And your coefficients are used to get the ratios. so for example we have this balanced equation
Be3N2 + 6H2O= 3Be(OH)2 + 2NH3 and you have to find the molar mass of 6h2o, you need to multiply the subscript by the atomic mass and then add them together to get the overall molar mass. * 2(1.01) + 16.00= 18.02 g/mol
and if a question wants to know the limiting or excess regent you would use the coefficients to find out the ratio between the compounds.
The correct answer is A: Formed by the sharing of valance electrons between atoms.
Hope this helps :D