Using the Periodic Table, which of the following two elements are in the same group?

Question 2 options:

A. Ca and Co

B. O and Cl

C. Ne and Ar

D. Li and Mg

An atom of an element has 5 electrons in L-shell.

Which property of gases allows you to smell popcorn when you walk into a movie theater?

One result of the water table reaching the surface is a lake true or false

How many moles are there in 50.5 atoms ba

During a redox reaction, the term reduction refers to

Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.

4. A bird left its post and flew in a triangular path. It flew 21 yards south, 72 yards east and 75 yards diagonally to end back at the post. Is it a right triangle?

Condension occurs in the inside of your windows in Winters, why?

How can you use Hess's law to determine a reaction's enthalpy?

7. How much energy in KJ is released when 15.0 g of steam at 100.0 degrees Celsius is condensed and then frozen to ice at 0.0 degrees Celsius?