What contribution to the field of chemistry was made by john dalton?

The vector quantity that defines the distance and direction between two positions. Example: James was 20 meters north of his house. Type the word that match the definition here

What does the term electrically neutral mean when discussing ionic compounds?

One example of a physical change is

A skateboarder reaches a speed of 130 km/h while attempting to set a world record. At this speed, how far would the skateboarder go in 30 minutes? A. 45 km B. 65 km C. 75 km D. 95 km

Using a gas filled balloon as an example describe what happens to the gas molecules that behave according to Charles's law.

A balloon contains 1.00 mol helium gas at STP. What will the volume of the balloon be if the pressure increases to 2.00 atm?

If 100 mL of a gas were enclosed in a buret at 500 mm Hg, what volume would the gas occupy at 1000 mm Hg at the same temperature? P1V1=P2V2

Would Mn (HPO4) 2 be manganese (II) monohydrogen phosphate?

The fundamental frequency of a violin string is 440 hz. the frequency of its second harmonic is

How much of a 15.0M stock solution do you need to prepare 250ml of a 2.35ml hf solution?