Jeremy throws his ball up in the air, but the ball falls back to the ground. What force made the ball move without ever touching the ball?

How did you get the 3.2?

Which of the following has almost no mass? Select one: a. proton b. neutron c. electron

Which statement is true about chromatography? a-Chromatography can be used to separate mixtures b-Chromatography only has one method c-All methods are based on solubility of components of a mixture in a certain solvent d-All of the above

What is the initial volume, in mL needed to prepare 150 mL of 3.0% (m/v) glucose from 22% (m/v) glucose

The candle burns with a yellow flame, but the flame in gas stove is blue? what makes the

In the following reaction, how many grams of ammonia (NH3) will produce 300 grams of N2? 4NH3 + 6NO → 5N2 + 6H2O The molar mass of ammonia is 17.0337 grams and that of nitrogen is 28.02 grams.

For each solute, identify the better solvent: water or carbon tetrachloride

If an element has 43 electrons, 56 neutrons, and 43 protons, what is its approximate atomic mass?

What did the Cherokee do to assimilate? Check all that apply They invented a writing system. They resisted white settlement. They wrote a constitution. They planted cotton and farmed.

Which of the following correctly compares the radii of Cl and Cl-? Cl has a larger radius than Cl - because Cl has an additional energy shell. Cl has a smaller radius than Cl - because Cl has an expanded electron cloud.