Yes, it does, just like any other sugar or substance
Answer: heat
Other indicators: color change, odor, gas, temperature change.
Answer: the answer is c.The unbalanced push causes the cart to speed up.
Explanation:
The application of an unbalanced force (the push) causes the cart to speed up. When the cart is in constant motion, the forces are balanced and there is no speeding up. Once an unbalanced force is added, the cart's speed changes.
Covalent for the first one