The substance in the glass is an mixture, element, compound, or atom

How many molecules of O2 are present in a 3.90L flask at a temperature of 273K and a pressure of 1.00 atm

Which of the following elements is most likely to have an oxidation state of + 2

What is an example of a natural light prism?

How many grams of hydrogen are in 92 g of ch4o?

Which of the following is the electron configuration of an electrically neutral alkaline earth metal A. 1s2 2s1 B. 1s2 2s2 2p2 C. 1s2 2s2 2p6 3s1 D. 1s2 2s2 2p6 3s2 3p6 4s2 I feel like the answer is D, but I'm not sure.

A group of students wants to see how temperature affects the time it takes for spilled water to dry up in the investigation what will be the dependent and independent variables

What is not true of white light?

Diatoms and some yeasts are unicellular eukaryotes that have mechanisms of nuclear division?

Consider the circuit 9.012 9.012 What is its equivalent resistance? Answer in units of 12.

out of 2.00 50 mL of water is added to 30 mL of a 0.50 M salt solution. What is the new concentration? (To write your answer using scientific notation use 1.0E-1 instead of 1.0 x 10-1)