What type of matter is 10 grams of calcium?

Homogeneous mixture

Heterogeneous mixture

Pure substance that is an element

Pure substance that is s compound

Calculate the volume of a container that is 8.9 centimeters long, 5.2 centimeters wide, and 2.55 cm tall. Choose an appropriate number of digits for your answer based on the precision of the data supplied. (volume = length ' width ' height)

Metals bond with halogens to form colorless metal halides. During an experiment, chlorine water was added to a solution of sodium iodide. A record of the experiment is shown.

The new substances that result from a chemical reaction is called?

How many moles of MgCl2 are there in 349 g of the compound

The volume of a sample of pure HCl gas was 205 mL at 27°C and 141 mmHg. It was completely dissolved in about 70 mL of water and titrated with an NaOH solution; 24.3 mL of the NaOH solution was required to neutralize the HCl.

What is the correct formula when Aluminum and Nitrogen are combined? a. Al3N b. AlN c. AlN3 d. Al2N

1-Bromobutane reacts with water to form 1-butanol according to the following equation. C4H9Br (aq) + 2 H2O (l) → C4H9OH (aq) + H3O + (aq) + Br - (aq) The following is a proposed mechanism for the reaction.

Which of the following statements is true? A. Transverse waves move particles parallel to the direction of energy. B. Longitudinal waves move particles at right angles to the direction of energy. C.

The electron configuration 1s22s22p63s23p6 represents which noble gas?

What feature distinguishes a neutral atom from an ion