Design a procedure that would test the law of conservation of mass for a burning log

As electrons are passed through the system of electron carriers associated with photosystem ii, they lose energy. what happens to this energy?

The ratio of sizes between the ionic radii of anions and cations in a cell has no influence on the manner of packing for that cell. a. True b. False

How reactive is an atom of Sodium (Na) and why? Question 1 options: Sodium (Na) is not very reactive because it does not have a full valence shell. Sodium (Na) is not very reactive because it can only bond with Chlorine (Cl) to become salt.

Make transformations! НCl - > MgCl2

How many moles are in 25 grams of C7H6NO2I

Draw the organic product of the following nucleophilic reaction

How does the energy of the activated complex compare with the energies of reactants and products? select one: a. it is lower than the energy of both reactants and products. b.

A student asked to convert measurements from liters to mililiters and from mililiters to liters. His answers are shown in bold in the choices shown below. On which choice did he make a mistake?

Donald is making a model of a nitrogen atom. The box for nitrogen in the periodic table is shown. To represent a neutral atom, which of these must Donald include in his model?

What are the charges and relative masses of the 3 main subatomic particles