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Which procedure involves a physical change in one of the substances? allowing a nail to rust creating salt by reacting sodium metal and chlorine gas building a model rocket propelled by mixing baking soda and vinegar grinding chalk into a fine powder. grinding chalk into a fine powder. How many oxygen atoms are there for three molecules of glucose (3C6H12O6) ? 1 3 6 18. 18. Which example is a
1) B, Not sure though 2)Building a rocket is a physical change technically its not changing its composition its just changing its appearance, the fuel for it causes a chemical change, there is an answer that is more clear, Grinding chalk into a fine powder only changes its shape which is a physical change.
Grinding something is an example of a physical change, because you are not chemically changing what the substance is, you are only changing the form of it. Another example of a physical change is
7/7/2014#0183;#32;When you grind the chalk or the sugar into the powder . The change of the water ( The matter ) from one state to another ( ice cycle ). The ice cycle is a physical change .
Physical Change ~ change which physical properties of a substance are altered but the substance remains the same. No new substance is formed, there is little or no heat change and its usually easy to reverse the process. Chemical Change ~Changes that substances undergo when they form new and differe Learn with flashcards, games, and more for free.
Grinding chalk really doesn''t change the chalk except to make it into powder. So that makes it a physical change. It is much like ice melting into water. So that makes it a physical change. It is
7/7/2014#0183;#32;When you grind the chalk or the sugar into the powder . The change of the water ( The matter ) from one state to another ( ice cycle ). The ice cycle is a physical change .
Standard: I can differentiate between physical and chemical changes and properties~ Terms~ Physical Change: change which physical properties of a substance are altered but the substance remains the same. No new substance is formed, there is little or no heat change and its usually easy to reverse the process. Chemical Change: Changes that substances undergo when they form new and different
INSTRUCTIONS: Classify each of the following changes in matter as physical [P] or chemical [C]. 10. Grinding chalk into powder P 11. Burning gasoline C 12. Dissolving salt in water P 13. Hammering gold into foil 14. bissolving zinc in acid C 15. Melting ice P 16. Tearing a piece of paper P 17. bigesting food C 18. Stretching copper into wire P 19. Making hydrogen from water C 20. Breaking
13/10/2016#0183;#32;D. grinding chalk into a fine powder 3. You have three molecules of glucose (3C6H12O6). How many oxygen atoms do you have? C. 6. gradman555p98x9p gradman555p98x9p Question 1: The right answer is A Chemistry is a science of experimental nature that studies the composition of matter and its transformations. Chemistry is thus interested in the elements that constitute matter (atoms, ions, etc
24/9/2014#0183;#32;Physical. Grinding chalk into powder is a physical change as there is no change in the substance. Also, no gas was released and there was no color or temperature changes. Therefore, it couldn''t be a chemical change.
Is grinding chalk into powder a chemical or physical change? Grinding chalk to chalk dust is a physical change because the texture and size may change but the its molecules are still the
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