Wednesday
September 17, 2014

Homework Help: science

Posted by Reed on Wednesday, September 12, 2012 at 9:58pm.

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 (chemical) 3. A pellet of sodium is sliced in two (physical) 4. Water is heated and changed to steam (both) 5. Potassium chlorate decomposes to potassium chloride and oxygen gas (chemical) 6. Iron rusts (chemical) 7. Ice melts (physical) 8. Acid on limestone produces carbon dioxide gas (chemical) 9. Milk sours (both) 10. Wood rots (chemical)

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry Balancing Equations - I really need help with balancing these ...
Chem Lab - Am I right? Classify the following properties of sodium metal as ...
Are my answers correct? Chem - I really need help with balancing these equations...
Chemistry - Is the following a physical or chemical separations: salt water --&...
Chemistry Balancing Equations - Can you please tell me if these are correct? 1. ...
chem - If 0.752 g of pure sodium carbonate was dissolved in water and the ...
Science - Hydrochloric acid and sodium hydroxide are mixed together to form salt...
Chemistry- HW Check - I have seven homework problems. I did them but I wasn't ...
Chemistry Help!! - sodium metal reacts violently with water to produce aqueous ...
Organic Chemistry - In lab, we did an oxidation of 2-ethyl-1, 3-hexanediol with ...

Search
Members