What's the difference between a pure substance and an element

How many milliliters of a 0.205 M solution of glucose, C6H12O6, are required to obtain 150.1 g of glucose?

How can the rate of a reaction be decreased

How many grams of water are needed to react with 485 g of calcium carbide

You place a carrot in salt water for 24 hours. What do you observe about the carrot at the end of that time? Choose the two correct answers. A. it will be shriveled B. it will be larger C. it will be firm D. it will be darker E. it will be limp

Ventifacts are created by a process of erosion called A. deflation. B. flow. C. abrasion. D. creep.

Penny bought a club moss plant for her water garden. She needs to know how tall the plant will grow so she knows how much space it will need.

Which of the following is not a producer? Mushroom Tulip Grass Pine Tree

Phosphorus forms a number of oxohalides, x3po, in which x may be a f, cl, or br atom. the most common of these, phosphoryl chloride, is obtained as follows:

Which statement is true about the speed of light waves in a medium? a. Depends on the temperature of the light wave b. Decreases with a decrease in density of medium c. Decreases with an increase in density of medium d.

What's a certain indicator that a molecule is polar? the molecule has a nonpolar covalent bond and the dipole is cancelled due to symmetrical arrangement of atoms the molecule has a polar covalent bond and the dipole is cancelled due to symmetrical