What is the empirical formula for a compound if a sample contains 3.72g of P and 21.28g of Cl?

-PCl5 - PCl3 - P2Cl10 - P2Cl 5

39.20 mL of 0.5000 M AgNO3 is added to 270.00 mL ofwater which contains 5.832 g K2CrO4. A redprecipitate of Ag2CrO4 forms. What is theconcentration, in mol/L, of unprecipitatedCrO42-? Be sure to enter the correct numberof significant figures.

What is the total number of electrons shared in a double covalent bond between two atoms? (1) 1 (3) 8 (2) 2 (4) 4

What is the meaning of DBE in organic chemistry

The distance between the earth and the sun is 90.0 million miles. calculate this distance in meters up to three significant digits. what is the answer?

Express In scientific notation. Remember, M must be a number 1 SM <10. 18 =

List results of Chemical Reactions.

When you measure something in meters cubed, you are measuring

Low density: low pressure: high density Is which. evaporation? water vapor? condensation / liquid water

Which structures are found on sponges? pores medusae polyps stinging cells

Coefficients in a chemical equation are used to: balance the number of atoms on both sides of the equation ensure that all subscripts on both sides of the equation are the same indicate energy changes that occur during the reaction indicate the type