A scientist in New York and a scientist in California both conducted independent investigations that produced similar results. What does this mean about the data that was collected?

The metric system is only used in France True or False

Which of the following best represents and explains the formula for a compound made from carbon and hydrogen? CH4, because four electron pairs are shared between carbon and hydrogen.

Boron exists in two isotopes, boron-10 and boron-11. based on the atomic mass, which isotope should be more abundant

Convert 325 milliliters to liters.

When magnesium combines with sulfur to form magnesium sulfide, it is oxidized to Mg2+. Which statement is true about this reaction

A scientist discovers a new type of polymer. What must be true about this polymer? A. It contains carbon atoms arranged in a ring structure. B. It has double bonds between all the carbon atoms. C. It contains molecules of many different types. D.

A line in the lyman series of hydrogen has a wavelength of 122 nm. from what state did the electron originate?

What are the products of photosynthesis? A. Glucose and oxygen B. Oxygen, solar energy, and glucose C. Carbon dioxide, water, and solar energy D. Hydrogen, oxygen, and carbon

A sample of a substance that has a density of 0.824 g/mL has a mass of 0.421 g. Calculate the volume of the sample.

The tyndall effect is used to detect A: suspensions B:liquid solitions C:tyndalls D:colloida