5. Which of the following is a chemical reaction?

A Iron rusts

B. Water freezes

C. Sugar dissolves in water.

D. Salt and pepper are mixed in a dish.

6. Abby is trying to Identify different liquids based on their physical properties. She has 4

A sample of helium gas occupies a volume of 152.0 mL at a pressure of 717.0 mm Hg and a temperature of 315.0 K. What will the volume be at a pressure of 463.0 mm Hg and a temperature of 777.0 K? The combined gas law equation is given below.

is the force for the hail fall

Propane can be turned into hydrogen by the two-step reforming process. In the first step, propane and water react to form carbon monoxide and hydrogen: C3H8 (g) + 3H2O (g) →3CO (g) + 7H2 (g) In the second step, carbon monoxide and water react to

What tool is used to measure the mass of something?

Use your Cabbage pH Indicator Key to determine the pH of each. Enter the pH ranges into the data table.

In a water solution, HCl and NaOH react to form H2O and NaCl. Radium-226 undergoes alpha decay to form radon-222. The temperature of both of these reactions is increased.

Which of these statements is true about endothermic reactions, but not about exothermic reactions? The reactants and products are different substances. The reactants have less energy than the products. The temperature of the container increases.

Calculate H3O + when OH - is 2*10 - 8

An element and an atom are different but related because a) A particular element is made up of many different types of atoms b) A molecule is the same as an atom c) An element is made up of all the same type of atom d) An element is smaller than an

Calculate the rate speed per drop in minute when applying a drip of 1000mg to last 4 2 hours