Answer:
CaCl2 is a reactant
Explanation:
Calcium carbonate (CaCO3) is a reagent, it is found on the left side, what is found on the right side are the products.
The answer is; The sun will turn into a red giant
This occurs as the hydrogen fuel in the fusion core of the sun begins to deplete. When the hydrogen fuel is depleted, the star begins to collapse on itself due to gravity. This pressure causes the heavier helium to begin fusing in the area around the core. The stars begin to heat up again producing enough energy to push out the outer shells of the star. This causes the star to expand. The outer shells become less hot hence the decrease in luminosity of red giants.
Answer:
2. +0.2 C
Explanation:
When the two spheres touch, the total charge will be redistributed such that the two spheres are at same potential:

The potential can be rewritten as ratio between the charge on the sphere (Q) and the capacitance of the sphere (C):

Since the two spheres are identical, they have same capacitance:

So we can write


And since the total charge is

And this charge will be redistributed equally on the two spheres (
), we have

Glass as it is heavier and by newtons first law and inertia the greater the mass = more inertia(resistance to chabge in motion) thus the glass has a greater mass than an empty paper cup and thus has greater inertia. So it would be easier to leave it in place