In a calorimetry experiment 60 ml of 0.400m of cuso4 solution is mixed with 40 ml of 0.700m naoh. the initial temperature of both solutions is 21.4 c and the final temperature 25.6 c. calculate the enthalpy change of this reaction in kj/mol.

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

Which is true concerning the products and reactants of photosynthesis and cellular respiration? a. the products of photosynthesis are sugars and the reactants of cellular respiration are starches. b. the products of photosynthesis are reactants in cellular respiration. c. oxygen is needed for photosynthesis and is given off in cellular respiration.