What is the net ionic equation for the following reactants? :D 1. Al (s) + HCl (aq) -->

2. Mg (s) + Na2CrO4 (aq) -->

3. Pb (s) + NaCl (aq) -->

4. K (s) + Cd(NO3)2 (aq) -->

What is the nature of the ca-cl bond in a molecule of calcium chloride (cacl2) if the electronegativity value of calcium is 1.0 and that of chlorine is 3.16?

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?