The surface temperature of main-sequence stars increases as

A. diameter increases.

B. diameter decreases.

C. absolute brightness increases.

D. absolute brightness decreases.

What is a group of sea turtle called

Find the volume of 0.240 M sulfuric acid necessary to react completely with 72.8 g sodium hydroxide. Express your answer with the appropriate units.

A copper coin with a mass of 6.30 grams changes temperature in the sunshine from 20.0°C to 32.0°C. How much energy is transferred? The specific heat capacity of copper is 0.377 joules/gram degree Celsius.

Which of these elements has the most chemically reactive atoms? a. gold b. argon c. carbon d. chlorine

If a carbon atom has - 4 electrons

A sample of a compound contains 9.11 g Ni and 5.89 g F. What is the empirical formula of this compound? A.) NiF B.) Ni3F2 C.) NiF2

Combining aqueous solutions of bai2 and na2so4 affords a precipitate of baso4. Which ions are spectator ions in the reaction?

Which kind of wave increases in height due to strong winds?

Solid lead IV oxide decomposes into solid lead and oxygen gas.

Ab2 has a molar solubility of 3.72*10-4 m. what is the value of the solubility product constant for ab2? express your answer numerically.