Calculate the density of a material that has mass of 52.457g and a volume of 13.5 cm3

Potassium dichromate (K2Cr2O7) is used in tanning leather, decorating porcelain and water proofing fabrics. Calculate number of chromium atoms in 78.82 g of this compound.

A certain material has a mass of 565 g while occupying 50 cm3 of space. what is this material?

Determine the type of reaction: agno3 + cu - - > cu (no3) 2 + ag double displacement single displacement synthesis decomposition

NaCl is formed by a covalent bond. True False

The temperature and volume in a closed container of gas remain constant. If the number of particles of gas is increased, what will happen to the gas pressure? -it will increase -it will decrease -it will remain constant -you cannot predict it

Most mutagens have what kind of an effect on an organism?

According to the hess's law, the enthalpy of solution is: δhsoln = δhsolute + δhsolvent + δhmix. considering dissolving a small drop of nonpolar pentane oil in water which term (s) in the equation will experience the largest enthalpy change.

Solve for x: ln x = 0.863. Report your answer to 3 significant figures.

What water activities might be easier to do in Lake Assal's salty water? What activities could be more difficult?

The suffix "-megaly in the term gastromegaly means: