What is the molarity of 0.25mol of Nacl in 300ml of solution

What is the molality of a solution that has 4 mol of kci in 0.800 kg of water

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.