What color do neutral solutions turn the universal indicator? a. Blue c. Orange b. Red d. Green

A sugar cube in a test tube is heated over a Bunsen burner. The sugar cube turns black and has less mass than before it was heated. These changes occur because the sugar has- A. become hydrated B. reacted chemically C. melted D. boiled

Which element is a metal that is in the liquid phase at STP?

How many atoms of oxygen (O) are required to form two molecules of sulfuric acid (H2SO4) ? A. 2 B. 4 C. 6 D. 8

Why is NaNO3 a homogenous mixture in terms of particle arrangement/composition?

Identify a community near where you live, such as a forest, a pond, or your own backyard. Think about the interactions of the organisms in the community.

What is the name of the product of the hydrogenation of 3,6,6-trimethyl-4-nonene?

Which of the following is the best name for SO3? a. sodium trioxide b. sulfur trioxide c. monosodium trioxide d. monosulfur trioxide

As a result of the interaction of 22 g of higher oxide of the element of the main subgroup of group IV with water, 31 g of acid was formed. Set the name of an unknown chemical element.

Determine the osmotic pressure of a solution that contains 0.048 g of a hydrocarbon solute (molar mass = 340 g/mol0

What problem would a person have if the nucleic acid in one of his or her cells were damaged?