Radio communications are frequently used in emergencies because

Which is a reactive metal? a.) silicon b.) sodium c.) chorine d.) argon

A thin square sheet of lead measuring 2.5 inches on each side weighs 525 mg. Find the thickness (in mm) of the sheet, given the density of lead to be 11.342 g/cc. (1 inch = 2.54 cm). Do not use scientific notion

Which of the following statements regarding Anfinsen's denaturing experiments with ribonuclease A (RNAse A) are valid?

What is the chemical sentence for fes (s) + hcl (aq) →fecl2 (aq) + h2s (g)

Which of the following is equal to 2.3 cm3? 2.3 x 10-3 m3 2.3 x 10-3 dm3 2.3 x 10-2 m3 2.3 x 10-6 dm3

Which of the following is an example of an electric force that occurs in atoms

5. What is another name for Newton's first law in your own words.

The molar mass of magnesium (Mg) is 24.30 g/mol. There are 6.02 1023 atoms in 1 mol. How many atoms are present in 48.60 g of Mg? 3.32 10^-24 atoms 1.96 10^-21 atoms 1.20 10^24 atoms 7.11 10^26 atoms

Add 3.76 * 104 and 5.5 * 102 and write the answer in scientific notation. A. 9.26 * 104 B. 9.26 * 106 C. 3.82 * 106 D. 3.82 * 104

In a dynamic equilibrium between the liquid state and the gas state, what is true about the rate of evaporation? a. greater than rate of condensation b. less than rate of condensation c. equal to rate of condensation d. cannot be determined.