S Block - Group 2 Questions and Answers

As you have seen, lead can form the same kinds of compounds as the alkaline earth metals, Nevertheless, the solubility values may differ markedly, Give a convincing reason based on the electron configurations of the metal ions.

In each of the following reactions, identify the reactant that is oxidized and the reactant that is reduced: a. 2Li(s) + F2 (g) → 2LIF(s) b. Cl2(g) + 2Kl(aq) →2 KCl(aq) + I2(s) c. 2Al(s) + 3Sn ²+ (aq)

A sample of lithium sulfide has twice as many lithium atoms as it has sulfur atoms. If sulfur ions carry the charge 2-, what is the charge of lithium ions? A. 1- B. 1+ C. 2- D. 2+

Write a balanced chemical equation for the neutralization reaction of hydrochloric acid with sodium hydroxide. a. 2HCI + NaOH → NaCl + 2H₂O b. HCI + 2NaOH →2NaCl + H₂O c. 2HCl + 2NaOH → 2NaCl + 2H₂O

When 1 mole of Ca(OH)2 chemically reacts with 1 mole of H₂SO4, what salt is formed? a. Ca₂SO4 is the salt formed. b. Ca(OH)2 is the salt formed c. CaOH is the salt formed. d. CaSO4 is the salt formed.

What is the only possible value of me for an electron in an s orbital? Express your answer numerically. Part B What are the possible values of me for an electron in a d orbital? Express your answer

Select all the statements that are true when magnesium reacts with chlorine: A. The compound that forms is MgCl B. Magnesium transfers electrons to chlorine C. Magnesium becomes a +2 cation D.

What mass of ammonia (NH3) will form when 8.6 g of N₂ reacts with enough H₂ to react completely? N₂ (g) + 3 H₂ (g) → 2 NH3 (9) 2.05 x 10³ g 10.5 g 20.9 g 2.62 g

In an experiment, magnesium sulfate heptahydrate, Epsom salt, is heated to a constant mass. What is the best representation of what happened in this experiment? 1. MgSO4 (byd) → MgSO4(gnhyd) 2.

For each reaction in the table below, write the chemical formulae of any reactants that will be oxidized in second column of the table. Write the chemical formulae of any reactants that will be

What is the concentration of copper ions in an aqueous solution that is 2.0 M Cu₂SO4? (2 significant figures) Hint: How many copper ions does one formula unit produce? a. 1.0 M Cu b. 2.0 M Cut c. 4.0

Predict the products of the reaction below. That is, complete the right-hand side of the chemical equation. Be sure your equation is balanced.