Why do some chemical reactions occur?

Select all that apply.

A) so the particles can have less volume

B) so the particles can have less energy

C) so the particles can turn into gas

D) so the particles can be more spread out

Which of the following correctly describes NaBr It is a neutral salt. It is an acidic salt. It is a basic salt. The acid-base properties cannot be determined.

This type of fatty acid has at least one double bond in the carbon-to-carbon chain and also contains protective qualities

Define mechanical energy

Calculate the mass ratio of zinc to iodine in zinc iodide. (mass of zinc consumed is 1.05g and mass of iodine consumed is 1.98g) Mass of ZnI2 after reaction is 2.45g?

Read the following chemical equation. Cl2 (g) + K + Br - → K + Cl - + Br2 (g) What most likely happens during this reaction? Potassium loses an electron. Potassium gains an electron. Bromine loses an electron. Bromine gains an electron.

If 294 grams of FeS2 is allowed ti react with 176 grams of O2 according to the following equation how many grams of Fe2O3 are produced? FeS2 + O2 = Fe2O3 + SO2

Convert 3.57 moles of aluminum to grams

An average microwave uses a frequency of 2.54 GHz. How much energy is emitted?

Why scientist form a hypothesis

Step two of the procedure states: "Using sterile technique, place a loopful of inoculum from the M. luteus culture in the drop of nigrosin and mix." Which of the procedures qualifies as sterile technique?