Answer:
D: lose an electron
Explanation:
when an atom loses an electron it's positively charged and when it gain an electron it is negatively charged
Thick fur helps a polar bear survive
Chemical. burning is a chemical change
Answer:
B
Explanation:
You take the net force and subtract it from the weight
Out of the following choices, the additional energy required for reactions to occur spontaneously is called the Eact or the Energy of Activation.