What is the volume of 3.89 grams of helium gas?

Can 7x-3 be factored?

The graph below compares the volume occupied by 100 g of liquid water and 100 g of water vapor. (A bar graph is shown with the title, Volume Occupied. The y axis title is, Volume. The x axis title is, Substance. There are two markings on the x axis.

Time remaining 58:52 bonds that form between two nonmetal atoms are usually ionic bonds.

What type of specimen may be viewed using the compound light microscope?

How many mL of the 3.00 M HCl stock solution is needed to prepare 250.0 mL of a 1.10 M HCl solution?

An unknown solution turned red litmus paper red, turned blue litmus paper blue, and didn't conduct electricity. The solution is most likely ... a Basic b Acidic c Neutral d Not enough information to determine

Which of the following does NOT occur at a subduction zone? A. The leading edges of both plates are bent downward. B. Oceanic crust is pushed down into the mantle. C. One oceanic plate moves into another oceanic plate. D.

4. What structural characteristics do all hydrogen atoms have in common?

Which of the following would be a result of increased solar activity? A. Longer winters B. Warmer-than-normal sea surface temperatures C. Colder-than-normal sea surface temperatures D. Shorter summers

The electron configuration of an element is 1s22s22p63s23p64s1. why is this a representative element?