Explain the change in mass that occurs when the following substances are separately heated in open crucibles

(a) Copper metal

(b) Copper (II) nitrate

Both slicing a tomato and a chemical change such as burning toast cannot be reversed. However, why is slicing a tomato still considered only a physical change?

How many valence electrons has the Lewis structure of CH 3 OCH 3

Why can we expect bigger storms during a cold front rather that a warm front

The mass of one cup of water is 0.236 kg you scientific notation to represent the mass of one cup of water

How many grams of silver chloride are produced from 5.0 g of silver nitrate reacting with an excess of barium chloride?

Observe: Change the Surface area from Minimum to Maximum. You can imagine that a solid reactant has been dissolved in a liquid. How does this change how many Reactant B molecules are exposed to Reactant A?

When placed in a 200-mL square box, a substance has a spherical shape and has a volume of 75 mL When placed in a 200-mL circular tube, the same amount of that same substance has a spherical shape and a 75-mL volume.

What is the example to the word camouflage

Given the reaction 2NaOH + H2SO4 = Na2SO4 + 2H2O, what is the total number of grams of NaOH needed to react completely with 196 grams of H2SO4

The mass flow rate of gasoline leaving a refinery is 1610 kg/min. The specific gravity of a gasoline is 0.700. A retail gasoline pump is able to fill a 20.0 gallon automobile tank in 1.80 minutes.