Answer:
The base layer of the shirt ( ORIGINAL COLOR) before dyed white was most likely yellow so the bleach lightened the colors to their original form
Explanation:
The density of the sample is:
Density = mass / volume
Density = 9.85 / 0.675
Density = 14.6 g/cm³
If the sample has 95% gold, and 5% silver, its density should be:
0.95 x 19.3 + 0.05 x 10.5
Theoretical density = 18.9 g/cm³
The difference in theoretical and actual densities is very large, making it likely that the jeweler was not telling the truth.
Cirrus and cumulus indicate fair weather
Answer:
When a sodium atom transfer over to a chlorine atom it forms a sodium cation and a chloride anion.
Explanation:
During that time both of the ions would have completely valence shells and energy wise are more stable, the reaction is usually VERY exothermic (Release of heat) which usually produces a bright yellow light.
Answer:
The magnesium reacted with the oxygen in the air.
Explanation:
For argument’s sake, let’s say that the mass of magnesium oxide was 3 g and that of the oxide was 5 g.
The reaction was
magnesium + oxygen ⟶ magnesium oxide
Mass: 3 g 5 g
Mass of oxygen = 5 g – 3 g = 2 g
The 3 g of magnesium must have combined with 2 g of oxygen to form 5 g of magnesium oxide.
