What kind of evidence can you use to determine if a chemical reaction has occured?

Which type of change must occur to form a compound? (1) chemical (3) nuclear (2) physical (4) phase

Determine the molarity for the fixer Sodium carbonate decahydrate (I dissolved 127.62 grams of sodium carbonate for every 4 liters of water)

What is the total number of different elements present in NH4NO3? (1) 7 (3) 3 (2) 9 (4) 4

Which tool is used to measure an object's mass? A. graduated cylinder B. meter stick C. digital thermometer D. electronic

Can a liquid or a gas apply a force to an object?

What is a type of force that will change an objects motion

A flask contains 4.4g of carbon dioxide gas. calculate how many moles CO2 gas does it contains?

What defines a mixture? A) A mixture contains different substances that are chemically combined. B) A mixture contains different substances that are not chemically combined and can be broken down into its basic substances through physical means.

How much does 5 gallons of water weigh?

Calculate the percent by mass sulfur in sulfuric acid, h2so4.