Question 1

Dr pepper has an [H+] = 1.4E-5. what is the pH

Express the following answers with the correct number of significant figures. 3.582 : 0.0131

Consider the balanced equation below PCl3 + Cl2 - - > PCl5 What is the mole ratio of PCl3 to PCl5? 1:1 2:1 3:5 5:3

If O2O2 is collected over water at 40.0 ∘C∘C and a total pressure of 755 mmHgmmHg, what volume of gas will be collected for the complete reaction of 23.87 gg of NiONiO? The vapor pressure of water at 40.0 °C is 55.4 mmHg. The molar mass of NiO is 74.

Write a word or phrase beginning with each letter of the word change

The volume of an object is the amount of space it takes up

What is the change in heat energy when 132g of copper at 32.2°C is raised to 45.0oC? The specific heat of copper is 0.385 J/g °C.

Polar covalent bonds are formed when the electrons in the bond are not shared equally between the two nuclei. which one of these molecules contains polar bonds?

The flame from my candle gives off black smoke heat and light what type of changes do these indicate

Which one of the following processes results in a decrease in the number of neutrons? corrosion electron capture gamma emission positron emission alpha emission

Calculate the root mean square velocity of F2, Cl2, and Br2 at 304 K.