Counting ten bikes on a bike rack is an example of a qualitative observation.

When are tides highest? a. during the moon's first quarter phase b. when the sun, Earth, and the moon are nearly in a line c. during the moon's third quarter phase d. when the moon is at a right angle to the sun

If calcium were to react with carbon, what would likely form?

Calculate the specific heat of a substance when 63j of energy are transferred as heat to an 8.0 g sample to raise it temperature from 314 k to 340 k

Agitation, temperature, and surface area of the dissolving particles determine how fast the substance will dissolve. Using these three factors, describe how you can increase the rate of sugar dissolving in a cup of tea.

How do the tilt of earths axis and earths movements around the sun cause seasons?

I'm doing isotope homework and I need the find the number of protons, neutrons, and electrons first one is chromium-58 and chromium-63

Trisha and her lab partner were conducting a variety of experiments to produce gases: hydrogen, oxygen, and carbon dioxide. In one experiment, they added a piece of magnesium ribbon to 10 milliliters of hydrochloric acid.

what mass of magnesium is required to react with excess nitrogen to produce 0.500 mol magnesium nitrade

Silver chromate is sparingly soluble in aqueous solutions. the ksp of ag2cro4 is 1.12 * 10-12 m3. what is the solubility (in mol/l) of silver chromate

What do you think 1,5-pentanedithiol C5H12S would smell like