Give the number of significant figures in this number: 40

4 Compared to the energy and charge of the electrons in the first shell of a Be atom, the electrons in the second shell of this atom have (1) less energy and the same charge (2) less energy and a different charge (3) more energy and the same charge

Volume of a cone is 200.96 what is the height of the cone

What would you observe in a solution of 30 g of KC1O3 in 100 g of water at 10 c? a. about 5 g of the KC1O3 is dissolved b. about 20 g of the KC1O3 is dissolved c. all of the KC1O3 is dissolved d. none of the KC1O3 is dissolved

The p K a of lysine's carboxyl group, amino group, and side chain are 2.2, 9.0, and 10.5, respectively. If lysine is in a pH 13 solution, what is the net charge on each lysine molecule?

What is the correct formula for calcium fluoride? a. caf2 b. caf c. ca2f d. ca2f2

How does mass affect thermal energy transfer?

Explain whether nitrogen atoms will form bonds with other atoms.

A large sample of solid calcium sulfate is crushed into smaller pieces for testing. which two physical properties are the same for both the large sample and one of the smaller pieces?

How do i give the number of significant figures in 0.0037 mm

Which of these are ionic compounds?