How many significant figures should be written in the sum 4.56 g + 9.032 g + 580.0078 g + 540.439 g?

a. 3

b. 4

c. 5

d. 6

e. 7?

What volume of 0.500 M AgNO3 are needed to react with 100. mL of 0.400 M K2CrO4? 2 AgNO3 (aq) + K2CrO4 (aq) ➔ Ag2CrO4 (s) + 2 KNO3 (aq)

A rock has a mass of 6 grams and a volume of 3cm3 what is the density

In chemical reactions, there is a conservation of (1) energy, volume and mass (2) energy, volume and charge (3) energy, charge and mass (4) energy, charge and volume

Which sublevels are full when an atom has a noble gas configuration?

Strontium sulfate becomes less soluble in an aqueous solution when sodium sulfate is added because? 1) the addition of sulfate ions shifts equilibrium to the left. 2) the addition of sodium ions shifts equilibrium to the left.

3. Which means of particle transport requires input of energy from the cell? diffusion osmosis facilitated diffusion active transport

Which best describes a spontaneous process as it relates to the second law of thermodynamics? It destroys heat. It requires work. It creates energy. It occurs naturally.

What mass (in mg) does 2.63moles of nickel have?

What does the energy hill represent on an energy diagram? A. The potential energy gained by the products when a reaction happens B. The final amount of potential energy of the products of the reaction C.

Compared to the ideal angle, you would expect the actual angle between the bromine-oxygen bonds to be