What is the definition of star

Iron combines with oxygen to form rust. Given the chemical reaction, how many grams of rust would be produced if 3 grams of reactants were consumed? A) 0 grams B) 1 gram C) 3 grams D) 7 grams

What volume will 0.875 moles of Kr occupy at STP

Which has the least gravitational potential energy? a 25 kg barbell being held above the head of a weightlifter a 10 kg barbell resting on the floor

Why doesn't water change into ice at 10 degree Celsius? A The fusion of water is an endothermic change but at this temperature, the temperature entropy product outweighs the change in enthalpy. B.

Hydrogen and oxygen react to produce water, according to the reaction 2H2 (g) + O2 (g) → 2H2O (l). If 3 moles of hydrogen react with 2 moles of oxygen and the yield in the reaction is 80%, how many moles of water are obtained?

What is number 16 on the periodic table

What is the strongest intermolecular force

If a sample of hydrochloric acid is neutralized with sodium hydroxide, what products are formed?

Prior to the development of DNA fingerprinting, blood type could be used to determine possible parentage. Although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent.

At room temperature, which of the following is the most compressible? A. One liter of oxygen, a gas B. One liter of water, a liquid C. One liter of mercury, a liquid D. One liter of iron, a solid