PLEASE HELP! WILL AWARD BRAINLIEST Question 1
Which of the following represents the number of grams of a solute in 100 grams of a solution?
a
Density

b
Molarity

c
Percent by mass

d
Volume

Question 2
The pOH of a solution is 8.3. Which of the following is true about the solution? (1 point)

a
It is acidic and has a pH of 5.7.

b
It is acidic and has a pH of 3.8.

c
It is basic and has a pH of 5.7.

d
It is basic and has a pH of 3.8.

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

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

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy