science

what is a chemical change?

  1. 👍 0
  2. 👎 0
  3. 👁 64
asked by danni
  1. it is when a a susbstance changes through a permenant change, like endothermic or exothermic and creates at least one new substance. It can't be reversed.

    1. 👍 0
    2. 👎 0
    posted by hannah

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science

    What did Antoine Lavoisier’s experiments demonstrate? a- Atoms always split into pairs during a chemical change. b- Mass is neither lost nor gained during a chemical change. c- Matter can be created during a chemical change. d-

    asked by Steve on February 9, 2014
  2. Chemistry

    What is the difference between a chemical change and a chemical reaction?? My answer: A chemical change leads to a solidifed chemical reaction but more or less they are the same thing because it's a change in which one or more

    asked by Sam on September 6, 2015
  3. Chem Lab

    Am I right? Classify the following properties of sodium metal as physical or chemical: •Silver metallic color—physical property •Turns gray in air—physical property •Melts at 98º C-melting point is physical property

    asked by Help1001 on April 23, 2010
  4. Science

    1) Which of the following is a chemical change? (1 point) Boiling of water Melting a cube of ice Dissolving 10 grams of salt in water Splitting water into hydrogen and oxygen*** 2) What is the mass of water that results from

    asked by Skylar on January 28, 2015
  5. science

    Will you please check a few more? Physical change, chemical change or both kinds of change? 1. Sodium hydroxide dissolves in water (both) 2. Hydrochloric acid reacts with sodium hydroxide to produce a salt, water and heat

    asked by Reed on September 12, 2012
  6. Chemistry

    Why is a change in temperature also considered a sign of a chemical change? When molecules move around more frequently due to the temperature change, they are more likely to collide with other molecules. When bonds are broken or

    asked by Quinn on November 30, 2018
  7. Science

    Multiple Choice 1. Which of the following is a chemical change? (1 point) boiling of water melting a cube of ice dissolving 10 grams of salt in water splitting water into hydrogen and oxygen * 2. What is the mass of water that

    asked by Pauly on April 17, 2015
  8. Chemistry

    When an electric current passes through water during the process of electrolysis, two gases are formed. One gas has a boiling point of -183 C and the other has a boiling point of -253 C. Has a physical change or chemical change

    asked by Sami on October 3, 2016
  9. Science

    Plz correct me if I'm wrong!! 1) Which of the following is a chemical change? (1 point) Boiling of water Melting a cube of ice Dissolving 10 grams of salt in water Splitting water into hydrogen and oxygen*** 2) What is the mass of

    asked by Vanessa on February 1, 2016
  10. Chemistry + possible answers

    for question 2c earlier - Would you describe the effect of heat on the white powders as a physical change or a chemical change? give one reason for your answer. - My sister told me the answer would be for whichever one is more

    asked by Moira on September 11, 2008
  11. Science

    1.)Which of the following are chemical changes? A.)Boiling Of Water B.)Melting A Cube of ice C.)Dissolving 10 grams of salt in water D.)Splitting water into hydrogen and oxygen 2) What is the mass of water that results from

    asked by #FreeGucci on March 2, 2016

More Similar Questions