Register
Formation of heat and/or light when two substances are combined indicate a _______ change.
229k views
5 votes
Formation of heat and/or light when two substances are combined indicate a _______ change.

User EarlyRiser
by
4.9k points

2 Answers

4 votes

Answer:

It's a chemical change

User Abalcerek
by
3.9k points
3 votes
Chemical change because a new substance is being formed if it’s not chemical then probably physical :)
User Leonel Kahameni
by
4.1k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

4.4m questions

5.7m 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.
A helium balloon containing 0.100 mol of gas occupies a volume of 2.4 L at 25 C and 1.0 atm. how many moles have we added if we inflate it to 5.6 L?
Link Copied!