Despite the name, dry cleaning does involve the use of liquid solvents. why would a dry cleaner use both polar and nonpolar cleaning solvents

Classify vegetable soup as a pure substance or a mixture. if it is a pure substance, classify it as an element or a compound. if it is a mixture, classify it as a homogeneous or heterogeneous.

A sample of gas at 1.0 atm pressure has a volume of 20.0 L. If the pressure is raised to 2.5 atm, what is the new volume? The temperature is held constant.

Why are reactions of ionic compounds very fast?

When copper is hammered into a sheet what type of change has the matter gone through?

1. A pyrotechnician mixes 280 g of black powder for a firework. Find the amount of oxygen, carbon dioxide, and sulfur dioxide generated when this firework bursts, if the oxidizing agent in the powder is saltpeter. 2.

In which of these samples do the molecules most likely have the least kinetic energy?

Just as heat can denature enzymes, so can a change in the pH. Enzymes that normally work in an acidic environment in the body can become denatured if the pH becomes too alkaline.

A group of students wants to see how temperature affects the time it takes for spilled water to dry up in the investigation what will be the dependent and independent variables

What is not true of white light?

Diatoms and some yeasts are unicellular eukaryotes that have mechanisms of nuclear division?