If you chop wood for a fire and then burn the wood, you have made both physical and chemical changes.
Answer True False

Question 4

In a cold pack, an ___________ reaction draws heat from the surroundings.
Answer

exothermic

endothermic

exergonic
Question 5

All endothermic reactions produce heat and make the surroundings warm.
Answer True False

Question 6

Which generalized equation represents a double displacement reaction?
Answer

A + BC → AC + B

AC +BD → AD + BC

AB → A + B

Question

If you chop wood for a fire and then burn the wood, you have made both physical and chemical changes.
Answer  True   False

Question 4
 
In a cold pack, an ___________ reaction draws heat from the surroundings.
Answer
		
exothermic
		
endothermic
		
exergonic
Question 5
 
All endothermic reactions produce heat and make the surroundings warm.
Answer  True   False

Question 6
 
Which generalized equation represents a double displacement reaction?
Answer

A + BC → AC + B
		
AC +BD → AD + BC
		
AB → A + B

anonymous · Answer

The first one is question 3?

anonymous · Answer

Please post this question in chemistry section

anonymous · Answer

First one is true. ~

anonymous · Answer

i would mikey but no one in the other ones is helping me soo

anonymous · Answer

Rest, maybe you need to look up. 

I know, that's why I posted my science and history questions in math. Lol.

anonymous · Answer

i didnt mean you u mikeyy i met the other dude sorry

anonymous · Answer

can u help me answer the other ones plz

anonymous · Answer

Google can help you answer those or your textbooks/lesson/notebook.

anonymous · Answer

Q4 is endo ... The endothermic reaction takes in heat whereas exothermic releases heat to the environment ...... That answers ur Q5 also

anonymous · Answer

Did u study  what is double displacement reaction ?