A metalloid has properties of

A. both solids and liquids.

B. both gases and liquids.

C. both metals and non-metals.

D. both elements and compounds.

What are 3 ways rocks change through time

Complete the chemical change. Na → Na+ a.) 2e- b.) proton c.) 1e-

Radioactive elements decay via first-order kinetics. consider a certain type of nucleus that has a rate constant of 2.4 * 10-2 h-1. a sample contains 6.5 * 108 radioactive nuclides. calculate the time required for 59% of the nuclides to decompose.

Which of the following contains the smallest amount of matter? A. 25 g B. 2.5 hg C. 2,500 dg D. 0.25 kg

Given that the molar mass of NaOH is 40.00 g/mol, what mass of NaOH is needed to make 2.500 L of a 2.000 M NaOH solution?

How do the rates of the forward and reverse reactions change throughout a reaction?

An unknown solution turned red litmus paper red, turned blue litmus paper blue, and didn't conduct electricity. The solution is most likely ... a Basic b Acidic c Neutral d Not enough information to determine

Which of the following does NOT occur at a subduction zone? A. The leading edges of both plates are bent downward. B. Oceanic crust is pushed down into the mantle. C. One oceanic plate moves into another oceanic plate. D.

4. What structural characteristics do all hydrogen atoms have in common?

Which of the following would be a result of increased solar activity? A. Longer winters B. Warmer-than-normal sea surface temperatures C. Colder-than-normal sea surface temperatures D. Shorter summers