What part of a microscope supports the weight of the microscope

The electronegativity of manganese is 1.6, sulfur is 2.5, oxygen is 3.5, chlorine is 3.0, and bromine is 2.8. With which element will manganese react to form ionic compounds? sulfur bromine oxygen chlorine

Which of the following best describes a mole as used in chemistry? A a simplification of mathmatics B a salt dissolved in water C a very large number of objects D a measure of concentration

What is the volume of 0.1 mole of methane (CH4) ? (One mole of any gas occupies 22.4 L under certain conditions of temperature and pressure. Assume those conditions for this question.) 2.2 L 20 L 22.4 L 44.8 L

What kind of galaxy is the Milky Way

What is the formula for the conjugate base formed by the following acid HCN

How is the ocean important to human survival? restate the question

A sample of pure lithium contains 7.99% lithium by mass. What is the % lithium by mass in a sample of pure lithium nitrate that has twice the mass of the first sample?

What ecosystem is being described in the passage?

In the enzyme reaction above, catechol is the substrate, oxygen is a reactant, catechol oxidase is the enzyme, benzoquinone is the product, and water (H2O) is a by-product. Which of the following will decrease the rate of this reaction? a.

How do acids and bases affect the quality of freshwater sources?