Which of the following groups of chemical elements would you expect to be most alike in their physical and chemical properties?

How would you make up 100 mL of a 0.10 M NaCl solution?

Which component of air is the primary problem in a condition known as "the bends"? a. He b. CO c. O2 d. N2 e. CO2

To keep them from reacting, some highly reactive elements are stored in?

How can humans decrease the rate of endangered or extinct species? Question 4 options: Introduce new predators to an environment. Minimize habitat destruction. Pollute other environments. Create and populate more zoos.

in a reaction between oxidant and reductant which will give up electrons and which will accept electron

Mason compare the properties of two compounds magnesium oxide is an ionic compound and hydrogen peroxide is not an ionic compound there for both compounds most likely

Cisplatin is synthesized as follows: K2PtCl4 (aq) + 2NH3 (aq)  Pt (NH3) 2Cl2 (s) + 2KCl (aq) What mass of cisplatin can be made from 100. g of K2PtCl4 and sufficient NH3? What mass of KCl is also produced?

What is the total number of protons in the nucleus of an atom of potassium-42? (1) 15 (3) 39 (2) 19 (4) 42

What happens to the equilibrium when the pressure is increased? It favors formation of products. It does not change. It favors formation of reactants. It is conserved.

After 2.0s, Isabela. was riding her bicycle at 3.0m/s on a straight path. After 5.0s she was moving 5.4m/s. What was her acceleration?