Which one of the following represents an exothermic reaction?(1 point)

Question

Responses

Cooking an egg until it is not runny.
Cooking an egg until it is not runny.

Cookie dough baking until the cookie is firm.
Cookie dough baking until the cookie is firm.

Burning wood in a wood stove.
Burning wood in a wood stove.

Water becoming cold when Epsom salts are added to it.
Water becoming cold when Epsom salts are added to it.
Question 2
An endothermic reaction _____.(1 point)
Responses

forms chemical bonds and releases heat
forms chemical bonds and releases heat

absorbs heat
absorbs heat

does not indicate that bond energies are changing in a chemical reaction.
does not indicate that bond energies are changing in a chemical reaction.

releases heat
releases heat
Question 3
Snow forming from liquid water is an indication of a _____________ reaction.(1 point)
Responses

hydrophobic
hydrophobic

endothermic
endothermic

nuclear
nuclear

exothermic
exothermic
Question 4
When you apply heat to cookie dough you are hoping to get nice, tasty cookies as a product. What type of process is this applying heat to the dough?(1 point)
Responses

endothermic
endothermic

exothermic
exothermic

hydrophobic
hydrophobic

nuclear
nuclear

Answer 1

Here are the answers for your questions:

Question 1: Which one of the following represents an exothermic reaction?

• Burning wood in a wood stove.

Question 2: An endothermic reaction _____.

• absorbs heat.

Question 3: Snow forming from liquid water is an indication of a _____________ reaction.

• exothermic.

Question 4: When you apply heat to cookie dough you are hoping to get nice, tasty cookies as a product. What type of process is this applying heat to the dough?

• endothermic.

If you have more questions or need further explanations, feel free to ask!