Which of these solids is insoluble in water?

A) sand

B) sugar

C) common salt

D) Jello powder

what Moves oxygen from the outside into the body and removes carbon dioxide from the body a. respiratory system b. gas exchange c. breathing

Zinc is extracted by removing oxygen form zinc oxide what is the name given to a reaction in which oxygen is removed from a substance

Which of the following is not a chemical property? a: reactivity with oxygen b: malleability c: flammability d: reactivity with acid

Celina has a water sample that's contaminated with salt and microorganisms. Which method should she use to purify the water A. distillation B. filtration C. osmosis D. reverse osmosis

Which of the following best defines homeostasis? Forming identical cells Breaking down glucose Maintaining stable internal conditions Increasing an organism's temperature

For a given reaction, adding a catalyst increases the rate of the reaction by (1) providing an alternate reaction pathway that has a higher activation energy (2) providing an alternate reaction pathway that has a lower activation energy (3) using

An element which forms an oxide that dissolves in water to form an acidic solution.

Milk of magnesia is a base. What happens when you drink milk of magnesia for an upset stomach? A) It raises the pH of your stomach. Eliminate B) It lowers the pH of your stomach. C) It cleanses the stomach of harmful, painful bacteria.

Which of the following can be classified as an empirical formula? Why? A. S2Cl2 B. C6H10O4 C. Na2SO3

A student records the value 1.5 atm on a data table. The student is measuring what?