How many grams of hydrogen are needed to produce 1.80g of water according to this equation 2H2+O2 = 2H2O

What is the mass defect of a fission reaction that releases 2.9 x 10" J of energy? 3.2 x 10-25 kg 9.7 x 10-20 kg 9.7 x 1020 kg 3.1 x 107 kg

Match with the correct definition. A. Each electron state can hold no more than two electrons, which must have opposite spins. B. Electron sharing between two adjacent atoms such that each atom assumes a stable electron configuration. C.

What temperature (in °C) did an ideal gas shift to if it was initially at - 23.0 °C at 4.62 atm and 35.0 L and the pressure was changed to 8.71 atm and the volume changed to 15.0 L?

2Al + 3Br2 - - > 2AlBr3 a) Which chemical is the limiting reactant? b) Which chemical must be the excess reactant? c) How much (in moles) AlBr3 gets produced? d) If all the limiting reactant gets used up, how much of the excess reactant is left?

Some compounds, like carbon dioxide, are gaseous at room temperature, while others are solid at room temperature. Why is this?

Fossil fuels are considered useful to humans because they are

Which organelles are unique to plant cells? chloroplasts mitochondria vacuoles nuclei

An atom that has 13 protons and 15 neutrons is an isotope of the element? How can I count it?

Which element is nuclear fusion least likely to produce? hydrogen, which has an approximate mass of 1 chlorine, which has an approximate mass of 35 argon, which has an approximate mass of 39 silicon, which has an approximate mass of 28 I know the

How deep does the surface current known as the Gulf Stream go A. 3,000 meters B. 3 meters C. 300 meters