Is heating sulfur and copper a physical or chemical change?

A 5 g sample of lead (specific heat 0.129 / g˚C) is heated, then put in a calorimeter with 50 mL of water (specific heat 4.184 J/g˚C). The water temperature rises from 20∘C to 22∘C.

Approximate temperature of a. 7 mold sample of a gas at 1.2 ATM and volume of. 170 L

How many bonds do iodine and hydrogen have?

Bridges and automobiles are either painted or coated with zinc. Why is it not electroplated?

Even though the neighborhood shown by the green star was not next to any of these fires, how was the neighborhood affected by them? A) The heat generated by these fires made the temperatures in the surrounding areas increase.

How do you describe an Ionic Bond?

Calculate molality of a 2m aq solution of sodium chloride with density 1.35g/mol

One important factor in any chemical synthesis is the actual quantity of desired product obtained compared to the theoretical amount predicted on the basis of the stoichiometry of the reaction.

In the old west, a cowboy would put their ear on the railroad track to determine if a train was coming. Using this method, they could tell if the train was coming sooner than just listening for the train.

Is lead a mixture or pure substance? and is Paint a mixture or pure substance?