4. In the following, how many digits should be in the solution to have the proper number of sig figs? DO NOT SOLVE.
a. (797.6 m) (54 m)

b. (851 cm) (24.3 cm)

C. 1075 kg - 15 L

d. 93.4 m - 10.975 m

e. (6.02 x 103 m)(12.00 m)(1.660 x 10-24 m)

f. (453.6 m)(9.050 x 109 m)(239.1 m)

The density of glycerin is 1.26grams/centimeter cubed . how many is this? use the conversion rates of and . express your answer to the correct number of significant figures.

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

110 g of water (specific heat = 4.184 j/g c) and 100 g of a metal sample (specific heat = 0.397 j/g c) are heated from 25 degrees c to 75 degrees c. which substance required more thermal energy?