Cuprous oxide (cu2o) is being reduced by hydrogen in a furnace at 1000 k. a. write the chemical reaction for the reduction of one mole of cu2o. b. how much heat is released or absorbed per mole reacted? give the quantity of heat and state whether heat is evolved (exothermic reaction) or absorbed (endothermic reaction). data: heats of formation at 1000 k in kj mol−1 : for cu2o = −175.31 kj mol−1 ; for h2o = −247.73 kj mol−1 .

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground

Which compound contain an iron with a 3+ charge

Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons