How many liters of Hydrogen gas (H2) are collected if 52.1g of nitric acid (HNO3) are consumed at STP in the following reaction: Cu + 2HNO3 ---> Cu(NO3)2. + H2

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

100 points answer quick the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change