1. What determines which elements combine and how they bond together?

2. Potassium is a metal with one valence electron. With which other elements does it form bonds?
A. elements with one electron
B. elements with two electrons
C. elements with five electrons
D. elements with seven electrons

3. Which type of bonds does potassium form? Which type of bond is most common?

4. Describe a covalent bond and how it forms. Give an example of a compound with covalent bonds.

5. Compare and contrast polar and nonpolar covalent bonds.

6. What is an ionic bond? How does it form? Give an example of a compound with ionic bonds

Many reactions take place in aqueous solution. when potential reactants are mixed, a reaction will occur if there is some driving force that favors the formation of products. it is often convenient to categorize reactions in terms of these driving forces: precipitate formation, in which an insoluble solid is formed, weak electrolyte formation, as in a neutralization reaction involving water, or transfer of electrons, as in a redox reaction. these reactions can be represented by full molecular equations, which contain all species in the reaction mixture, or by net ionic equations, which show only the species that actually undergo a change. the latter does not contain the spectator ions, which do not undergo a net change or do not take part in the reaction. part a when the following two solutions are mixed: k2co3(aq)+fe(no3)3(aq) the mixture contains the ions listed below. sort these species into spectator ions and ions that react. drag the appropriate items to their respective bins. view available hint(s) spectator ions ions that react part b what is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants? assume that the contribution of protons from h2so4 is near 100 %.ba(oh)2(aq)+h2so4(aq)→ express your answer as a chemical equation. view available hint(s) nothing provide feedback

Name the element in group 17, period 2. (periodic table)

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.