Which element cannot be further broken down into other chemicals

If molar mass of Na2SO4xnH2O is 304.04 mol/g, what is the hydration number of n

Which one of these exhibits a notochord at some stages of its development? A brittle star A tapeworm A cat A hydra

Which of the following leads to a higher rate of effusion? a. Cooler gas sample b. Lower molar mass c. Slower particle movement d. Reduced temperature

A manufacturer of trophies wants to cover a trophy made of tin with thin layers of silver and gold. Which of the following processes should the manufacturer use to perform this task? A.) anodization B.) electroplating C.) electrometallurgy D.

Chromium-51 is used in imaging red blood cells and has an effective half-life of 27 days. If a dose with an activity of 32 μCi is given to a patient, how long will it take for the patient to have less than 8 μCi present?

Homogeneous mixture definition in chemistry

Explains why heating a liquid affects its viscosity? The molecules move faster at higher temperatures and overcome attractions more easily. The molecules move faster at higher temperatures, and the attractions between them increase.

Which of the following is a correct procedure for the operation of a microscope? A. Use the fine focus knob with the low power lens and use the coarse focus knob with the high power lens. B.

The Chemist has available four different sizes (based on maximum volume) of graduated cylinders. If the Chemist desires to measure 8 mL, which of the following cylinders is the best choice (based on the criteria given in the class handout) ?

How many atoms altogether make up one molecule of glucose