What type of reaction is Zn + 2HCl > ZnCl2 + H2

Many biochemical processes are described as coupled reactions. which of the following statements are true? 1 the first step is endergonic. 2 a second reaction is required to make the first spontaneous. 3 the second step is not spontaneous.

5.00 moles of oxygen gas and 2.00 moles of carbon dioxide are mixed in an evacuated jar of volume 4.00 liters and temperature of 200 K. What is the partial pressure of carbon dioxide (R = 0.

How can we make use of acids or bases to improve crop yields?

Calculate the pOH of a solution with a pH of 4

In a piece of metal, what holds the atoms together? the positive charges of the nuclei and the localized electrons around them the negative charges of the nuclei and the localized electrons around them the positive charges of the nuclei and the

What happens when the cold finger is placed in the hot water? what direction did the heat travel from the hot water?

For a neutral Nitrogen, how many electrons are in the 2p electron orbitals?

A neutral atom has an atomic number of 20 and a mass number of 41; how many protons, neutrons, and electrons are found within the atom?

Which of the following are dwarf planets Ceres Nama is Eris Charon Haumea Makemake Pluto

Which set of factors changes igneous or sedimentary rock into metamorphic rock? heat and weathering water and weathering heat and pressure water and pressure