The student observed a decrease in temperature when the substances were combined. A milky substance was produced and fell to the bottom of the flask. What is the most likely reason for these results?

A 3.000g sample of naphthalene undergoes complete combustion to produce 10.30g CO2 and 3.37g of H2O MW=128. What is the empirical formula of naphthalene and what is the molecular formula of this naphthalene?

What 3 categories are elements divided

One office building contains only incandescent lights. The building next door contains only fluorescent lights. Predict which building has higher energy bills. Explain your answer.

Which of the following examples does NOT describe nuclear fission? Bombarding uranium nuclei with beta particles to produce two lighter atomic nuclei. Colliding hydrogen atoms to produce heavier helium atoms.

How would you test a colorless crystalline compound to determine if it was a hydrate?

A chemical base may be defined as a compound which contributes hydroxide ions or increases the OH concentration when dissolved in water. True False

Correct name for LiCl

What is anisotropy. Explain briefly with example.

Which is measured using a calorimeter

5) Solid lithium metal is added to an aqueous solution of magnesium chloride forming lithium chloride solution and solid magnesium a. If you begin the reaction with 15.0 g of lithium and 25.