If an element has 15 protons and 32 neutrons what is the: Atomic number? c) Mass number? Number of electrons? d) Complete Symbol?

Water is an example of a

Identify the type of chemical bond that forms when potassium reacts with bromine to form a salt.

If a hot air balloon has an initial volume of 1000 L at 50 ∘C, what is the temperature (in ∘C) of the air inside the balloon if the volume expands to 1700 L?

Which of the statements describes a chemical property? Mercury is a liquid at room temperature. Water freezes at 0 °C. Antacid tablets neutralize stomach acid. Helium is the lightest monatomic element.

Match the following with their correct molecular weight. 2-butanone Propyl acetate 4-methyl-2-pentanone Butyl acetate Methanol Ethanol A. 46.07 g/mol B. 116.16 g/mol C. 102.13 g/mol D. 100.16 g/mol E. 32.04 g/mol F. 72.11 g/mol

Peter is 5 ft, 11 inches tall. Paul is 176 cm tall. Who is taller?

Which is the MOST accurate description about how the different types of feedback mechanisms work

What was one of the main benefits to the use of the icebox for cooling food?

How many moles of chlorine gas would occupy a volume of 35.5 L at a pressure of 0.98 atm and a temperature of 373 K?

What are the building blocks