Sally has collected a sample of dirt from a riverbank and wants to analyze it. Sally wants a magnified view of the dirt to try and see what it is made of. Which piece of equipment should she use?

Members of which group easily lose an electron to form a 1 cation? A. halogens B. alkaline earth metals C. noble gases D. alkali metals

Chemical reactions forming ions do not balance electrically. True or False

For which compound does 0.256 mole weigh 12.8 g? A) (C_2 H_4 O) B) (CO_2) C) (CH_3 Cl) D) (C_2 H_6) E) None of these

Imagine a balloon is made from a membrane that's permeable to water but not sucrose molecules. How would the balloon be affected if it is filled with a 50% sucrose solution and then placed in a beaker of water? The balloon would eventually burst.

According to one acid-base theory, NH3 acts as a base when an NH3 molecule A) accepts an H+ion B) donates an H + ion C) accepts an OH-ion D) donates an OH - ion

What does the name amino acid tell you about the structure of this molecule?

Fluorine is a toxic, reactive gas. which representation (structural formula, electron dot structure, or three-dimensional model) would you use to explain why fluorine is so reactive, why?

The electronic configuration of an element is given below. 1s22s22p63s1 Which statement about the reactivity of the element is true? It is reactive because it has a full outermost energy level.

What would happen if the cell cycle stopped in a multicellular organism

True or false products are located in the left side of a chemical equation?