An element that has a low first ionization energy and good conductivity of heat and electricity is classified as a

(1) metal (3) nonmetal

(2) metalloid (4) noble gas

Scientists test a hypothesis by?

A person tries to heat up her bath water by adding 5.0 l of water at 80c to 60 l of water at 30c. what is the final temperature of the water?

Identify some acids that are found in everyday materials. Lemon juice baking soda dish detergent vinegar hand soap

A gas occupies a volume of 458 mL at a pressure of 1.0 1K PA and temperature of 295K. when the pressure is changed the volume becomes 500 mL. if there has been no change in temperature what is the new pressure?

The availability of phosphorus is different that that of carbon and nitrogen because it is found mostly in the

A) the ka for acetic acid (h3cco2h) is 1.737 * 10-5. what is the pka for this acid? b. use the pka calculated above to determine the ph at which [h3cco2h]=[h3cco2-].

Suppose you take a piece of hard wax from an unlit candle. After you roll the wax between your fingers for a while, it becomes soft. What State of matter is the softer wax? Is it possible for wax to change without changing state

Prevailing winds peru

Foods labeled "fat free" can actually contain less than 0.5 grams of fat.

Plants make their own food. The chemical reaction for this process is shown in the equation below. CO2 + H2O + energy → C6H1206 + O2 What are the products in this chemical reaction? O A. C6H1206 + energy O B. H20 + energy O C. CoH1206+02 O D.