Is (NH4) 2 a ionic compound

Which statement describes the acid found in vinegar (acetic acid) ?

What is the volume of 1.2 moles of oxygen gas (O2) at standard temperature and pressure (STP) ?

According to Le chatelier principle, a change in pressure affects the chemical equilibrium of the reaction system under what condition? 1. The reactants and the products are in the solid phase 2. The reactants and the products are in a liquid phase.

Density, Mass, or Volume is a physical property of matter?

A parallelogram has side lengths of 4 and 6 and an angle of measure 55°. Law of cosines: a2 = b2 + c2 - 2bccos (A) What is x, the length of the diagonal, to the nearest whole number? 3 5 6 7

Farmers need to make many decisions about how they grow their crops. One of these decisions is whether to use synthetic fertilizer or organic fertilizer, such as manure.

If you walk toward a Van der Graaff generator, the effect of its electric field would get weaker as you got closer to it, true or false.

The volume of a single nickel atom is 8.10*10-24 cm3. what is the volume of a nickel atom in microliters?

A college student driving to classes produces 8000 kg of carbon dioxide (CO2) in a year, contributing to global warming. What volume of CO2 is produced? (The density of carbon dioxide is 2.0 g/L.)

For the first five steps of glycolysis, the appropriate sequence of enzymes is: A. phosphofructokinase-1 (PFK-1). B. hexokinase / glucokinase. C. fructose bisphosphate aldolase. D. Phosphoglucoisomerase. E. triose phosphate isomerase (TPI). a.