Register
What do these two changes have in common? photosynthesis a piece of pear turning brown Select all that apply. Both are only physical changes. Both are chemical changes. Both are caused by heating. Both
189k views
17 votes
What do these two changes have in common?

photosynthesis
a piece of pear turning brown
Select all that apply.
Both are only physical changes.
Both are chemical changes.
Both are caused by heating.
Both are caused by cooling.

User Sami Kuhmonen
by
4.3k points

1 Answer

2 votes

Answer:

both are chemical changes

User Bonaldi
by
4.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

4.5m questions

5.8m answers

Other Questions

What is the variable for this number 22.4L?
Which of the following aqueous solutions are good buffer systems? . 0.29 M perchloric acid + 0.15 M potassium perchlorate 0.16 M potassium acetate + 0.26 M acetic acid 0.18 M hydrofluoric acid + 0.12 M
Suppose a flask is filled with of , of and of . The following reaction becomes possible: The equilibrium constant for this reaction is at the temperature of the flask. Calculate the equilibrium molarity
What mass of 2-naphthol would have to be ingested by each rat in a sample set of rats in order to kill half the population of rats? Assume each rat weighs 230 g. Show your calculations for full credit.
1. If temperature is increased, the number of collisions per second do what
Link Copied!