17. Challenge Express each answer in scientific notation in the units indicated. a. (1.26 X 104 kg) + (2.5 x 108 g) in kg
b. (7.06 g) + (1.2 x 10-kg) in kg
c. (4.39 x 105 kg) - (2.8 x 107g) in kg
d. (5.36 x 10-kg) – (7.40 x 10-2 kg) in g

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.