Answer:
D no. is the answer of your question
There was a change in its color from white to red which can only be changed by a chemical reaction
In an atom, electrons travel outside the nucleus.
c. travel outside the nucleus.
Answer:
The main source of energy is the sun. The sun has a big part in the water cycle because it turns the water into water vapor. This cause the water cycle to start over again once it rains. Therefore, making the sun ne of the biggest parts in the water cycle.
Ans: 1.4 moles
<u>Given:</u>
Mass of tungsten = 250 g
<u>To determine:</u>
Moles of Tungsten
<u>Explanation:</u>
# moles of a given substance = Mass of the substance in grams/molar mass (g.mol-1)
Atomic mass of W = 184 g.mol-1
# moles of W = 250 g/184 g.mol-1 = 1.359 moles