How to determine which atom is bigger?

Number of electrons in n=3

Describe how desertification has impacted the environment of this area in Southeast Asia

2. At STP, how many liters of oxygen are required to react completely with 3.6 liters of hydrogen to form water? 2H2 (g) + O2 (g) 2H20 (g)

Polarity is important because a) polar and nonpolar molecules have properties. b) polar molecules interact strongly with molecules but do not interact with molecules, c) nonpolar molecules interact strongly with molecules but do not interact with

To begin the experiment, 1.11g of methane CH4is burned in a bomb calorimeter containing 1000 grams of water. The initial temperature of water is 24.85oC. The specific heat of water is 4.184 J/g oC. The heat capacity of the calorimeter is 695 J / oC.

A 1.50-g sample of hydrated copper (II) sulfate was heated carefully until it had changed completely to anhydrous copper (II) sulfate () with a mass of 0.957 g. Determine the value of x.

The reaction rate between reactants Z and Y is proportional to the cube of [Z]. What is the rate law for this reaction?

A metal surface becomes dull because of continued abrasion. chemical or physical

What types of tissues build the digestive system?

Chemical bonds? A.) Combine compounds to form elements B.) Hold atoms together to form compounds C.) Are always covalent D.) Are always ionic