How many joules of heat are given off if a piece of Aluminum with a mass of 50 g and a specific heat capacity of 895 J/gº C, changes temperature from 200° C to 100° C. Would this be an endothermic or exothermic reaction?​

How can you use chemical equations to predict the products of the reaction you can carry out?

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?