Express 602 X 10^21 in scientific notation

What is the more reactive metal CA or Ra

What are three differences between potassium 40 and carbon 14?

Hydrobromic acid (HBr) and sodium hydroxide (NaOH) combine in a neutralization reaction to form water and a salt. Which of the following correctly identifies the salt that is produced? OHBr NaBr BrH HOH

What important information did Ernest Rutherford discover about the atom?

The health codes cover all issues, except: Workers health & safety Exporting foods Importing foods Food service complaints

What type of radiation wave from the Sun does this graphic display? answer choices: x rays microwave visible ray infrared ray

What is the charge associated with each side of the HCl molecule?

Neon is a gas made up of one type of atom. Which term best describes neon? A) molecule B) element C) compound D) mixture

When the liquid is poured through a fliter,

A student went to the dentist and found out that he had a cavity. He always brushes his teeth twice a day, so he didn't understand how he got a cavity.