Who was the first to propose the existence of atoms? John Dalton Democritus Joseph Proust Ernest Rutherford

What are blocks of time in the geological time scale called? a. centuries c. years b. eras d. days?

Unlike humans, termites are able to extract energy from wood because:

What is a physical property of milk

What is a substance that by its presence increases the speed of a chemical reaction between other substances and yet is itself unchanged by the reaction? a. accelerator b. catalyst c. inducement d. reactor

Based on its location on the periodic table, which metal is likely to be less reactive than both strontium and sodium?

In an open system, the vapor pressure is equal to the outside air pressure. T or F?

Could acetic acid be used in the esterification, instead of acetyl chloride? Why or why not?

9. In a sample of gas, what causes pressure? Answer in a completesentence.

Sodium (Na) reacts with chlorine gas (Cl2 ) to form sodium chloride (NaCl) as shown in the equation: 2Na + Cl2 → 2NaCl If 4 moles of chlorine gas react, how many moles of sodium will react?

What are transuranium elements properties?