HELP plis ! Find the molar masses of the following compounds: SHOW ALL WORK!!!

1) LiI. Li. 7 + I 127

134g/mol

2) PbCO4

Pb =. 1 x 207 =207

C = 1 X 12 = 12

O = 4 x 16 = 64

283 g/mol

3) Mg(OH)2

Mg= 1x 12 = 12

O= 2 x16 =32

H= 2x1= 2

46 g/mol

4) K3PO4

5) (NH4)3PO4

6) C12H22O11

7) Fe2(SO4)3

8) Na3P

9) AgF

10) NH4C2H3O2

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

Since the gas in your graduated cylinder is a mixture of butane and water vapor, you must determine the partial pressure of the butane, pbutane, alone. to do this, consult a reference and record the partial pressure of the water vapor, pwater, at the temperature you recorded. use the following formula to compute the partial pressure of the butane. pbutane = atmosphere - pwater use the following combined gas law formula and compute the volume that the butane sample will occupy at stp. (hint: convert both temperatures to kelvin.) pbutane x voriginal = pstandard x vfinal troom tstandard use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. grams of butane you used “x” grams of butane ml of butane corrected to stp = 22,400 ml compute the theoretical molar mass of butane based on its formula and the atomic masses on the periodic table. compare your experimental results from #3 to the theoretical value of #4, computing a percent error of your findings using this formula: % error = measured value - accepted value x 100 accepted value use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. need asap

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)