What is the mole ratio of oxygen to water in the following equation? C3H8 + 5O2 - > 3CO2 + 4H2O

10:8

10:9

5:4

7:7

Which of the following combinations cannot produce a buffer solution? Select all that apply. HF and NaF HOCl and NaCl HCN and LiCN HClO4 and NaClO4 HNO2 and KNO2 H2SO4 and Na2SO4 NH4Cl and NaOH NH3 and (NH4) 2SO4

Which aisles of the grocery store would be likely to include examples of acids and bases? Choose all that apply. frozen foods plastic cups and bags cleaning products medical and health juices kitchen utensils and pots and pans cooking and baking

Identify a chemical reagent used to distinguish CaCl2 from CaCO3. What is the distinguishing observation?

State in which a substance has definite shape and a definite volume

What is the advantage in using a simple machine? Reduces the amount of work needed to move on object Increase the mechanical advantage by increasing the effort force that is applied Reduce the amount of energy required Reduce the work needed to

Copper (cu) is a transition element used in the making of coins. calculate the mass in grams of 0.0420

In 1864, the Solvay process was developed to make soda ash. One step in the process is represented by the balanced equation below.

A chemist must prepare of aqueous potassium permanganate working solution. He'll do this by pouring out some aqueous potassium permanganate stock solution into a graduated cylinder and diluting it with distilled water.

What is the best name for the molecule below? a compound with 10 total carbons with a double bond and the rest single bonds.

What Word means the gradual change and build up of organisms in an enviroment