Polysaccharides always:a. are a string of 3 or more sugar molecules. b. contain lipids. c. are polymers. d. The first and second choices are correct. e. The first and third choices are correct.

What determines the amount of chemical energy something has

A 2.40 M aqueous solution of LiCl has a density of 1.0538 g/mL. If the total mass of the solution is 54.0 g, what masses of solute and solvent are present?

Use the Gizmo to estimate the age of each of the objects below. For these questions, each second in the Gizmo represents 1,000 years.

A car jack with a mechanical advantage of 6 needs to produce an output force 600 N to raise a car. What input is required?

According to Dalton's atomic theory, elements are composed of tiny particles called ___. Atoms of each element are ___ from the Atoms of all other elements. Atoms of different elements can form ___ by combining in whole-number rations.

Part 2: Finding Speed and Height Using Energy Directions: Use the KE and GPE equations to solve for speed or height depending on the situation. 1. A 1,000-kg car has 50,000 joules of kinetic energy. What is its speed? 2.

Why is conductivity be the best test to find a metal, non-metal or metalloid?

In which way does a na1 + ion differ from a neutral na atom?

Which would not be associated with stable atmospheric conditions afternoon thunder showers is the answer

Which is not a characteristic of a compound? It is a mixture of elements. It has properties that differ from its component elements. It has a fixed proportion of elements.