BaCl2 (aq) + Na2CO3 (aq) BaCO3 (s) + NaCl (aq

Which coefficient should be placed in front of NaCl to balance this equation?

1

2

3

4

Solar, wind, and water power are renewable resources and can replace our dependence on fossil fuels. They each have their own drawbacks however. Explain the drawbacks of each type of resource, and give a possible way to overcome that drawback.

What role did sulfuric play in the ester hydrolysis reaction? a. it reduced the reactivity of the starting material. b. it increased the ph of the solution. c. it behaved as a catalyst. d. it behaved as the nucleophile?

Which compound is classified as an electrolyte? a) C6H12O6 b) Ca (OH) 2 c) C12H22O11 d) CH3OH

If you boil a sample of water, the steam that results will have: Select the correct answer below: less mass than the water more mass than the water the same mass as the water impossible to predict

Andrea is performing two experiments to measure the correlation between sunlight exposure and fish activity. In one experiment, she uses a tank of goldfish in her home.

Which two properties are characteristic of ionic compounds?

explain why the hydrogen atoms in a hydrogen gas molecule form nonpolar covalent bonds but the oxygen and hydrogen atoms in water molecules form polar covalent bonds

The equation 2 N O 2 in equilibrium with N 2 O 4 represents a system,

How does the calorie compare to the metric unit the joule? How do you calculate a calorie? Is it the same for all types of food?

Under which conditions would the solubility of a gas be greatest? A. high pressure and high temperature B. high pressure and low temperature C. low pressure and high temperature D. low pressure and low temperature