Name the elements present in a) zinc sulphide b) sodium oxide

Hydrochloric acid and calcium carbonate react to form calcium chloride, carbon dioxide, and water. If you being with 1.25 L of 1.20 M calcium carbonate and a stoichiometric amount of hydrochloric acid, how many grams of carbon dioxide will be formed

Density is ___ to pressure

Balance the following redox reaction if it occurs in acidic solution. What are the coefficients in front of H + and Fe3 + in the balanced reaction?

An analysis for copper was performed on two pure solids. One solid was found to contain 43.0% copper; the other contained 32.0% copper. Could these solids be samples of the same copper-containing compound

In which layer is the pressure the highest A. the inner core B. the outer core C. the crust D. The lower mantle

Which exters stronger gravitational pull on earth, the sun or the moon?

How many atoms are in 5.548 g of thorium

1. Barium (Ba) is larger than magnesium (Mg) because barium appears below magnesium on the periodic table. Explain why barium (Ba) is larger than magnesium (Mg). 2.

Solution A has a pH of 3 and solution Z has a pH of 6. How many times greater is the hydronium ion concentration in solution A than the hydronium ion concentration in solution Z? (1) 100 (3) 3 (2) 2 (4) 1000

Based on the leaf cross section shown above what do you know about the plant from which it came