An atom has 5 protons and 7 neutrons. What is its mass number?

Is fog made up of water vapor or liquid water?

For the chemical reaction CH3Br + OH - → CH3OH + Br-, which of the following would indicate the reaction occurred? a. decrease in CH3OH concentration over time b. increase in OH - over time c. increase in CH3Br over time d.

Word elements can be used to show chemical reactions. When hydrogen burns in oxygen. Water is produced. The word equation is hydrogen + oxygen - water. Write the word equation for iron and sulphur combining to form iron sulphide.

Explain in 3 sentences how kinetic energy, thermal energy, temperature, and heat are related

What Type of Reaction is the following: Cu2 (Cr2O7) + Fe (PO4) → Cu3 (PO4) + Fe2 (Cr2O7) 3 1. Synthesis 2. Decomposition 3. Single Replacement 4. Double Replacement

I'm doing isotope homework and I need the find the number of protons, neutrons, and electrons first one is chromium-58 and chromium-63

Trisha and her lab partner were conducting a variety of experiments to produce gases: hydrogen, oxygen, and carbon dioxide. In one experiment, they added a piece of magnesium ribbon to 10 milliliters of hydrochloric acid.

what mass of magnesium is required to react with excess nitrogen to produce 0.500 mol magnesium nitrade

Silver chromate is sparingly soluble in aqueous solutions. the ksp of ag2cro4 is 1.12 * 10-12 m3. what is the solubility (in mol/l) of silver chromate

What do you think 1,5-pentanedithiol C5H12S would smell like