Answer:
Explanation:
It could be as a result of evaporation from the hot water causing it to have less mass than usual. Evaporation will allow the volume of the hot water to decrease and by so doing will cool faster than cold water which is at a higher mass. This is how I will explain my observations to them.
Answer:
48g of Magnesium.
Explanation:
We know that:
Mole=given mass/molar mass
Then, moles of aluminum = 54/27 = 2.
A/c to question ,
For 2 moles of magnesium it's mass is 2×24=48g.
Hence, the required mass for same number of magnesium atoms is 48g.
(Hope this helps can I pls have brainlist (crown)☺️)
Matter cannot be created or destroyed in a chemical reaction best describe law of conservation of mass.
<h3>What is law of conservation of mass?</h3>
The law of conservation of mass states that for any system closed Mass can neither be created not destroy. the mass of the system must remain constant over time,.
Therefore, Matter cannot be created or destroyed in a chemical reaction best describe law of conservation of mass.
Learn more about law of conservation of mass here.
brainly.com/question/15289631
The atomic model that J . J Thomson was famous for noting would be the plum pudding model, where he proposed that electrons would actually be embedded as raisins within the atomic nucleus. I believe.
