In need of science help!
Hi basil, I need some help with my science homework please.
1. Can a compound be separated into its elements by filtration? Explain.
2. Name an element that is a part of your everyday life, and describe how you use it.
3. Name two classes of pure substances and give an example of each.
4. Decide whether each of the following is a pure substance. Explain your reasoning.
a-Salt water b-gold c-pencil
5.Would a pure substance ever settle out and form two distinct layers? Explain your reasoning.
6. Describe the relationship between an element and a compound.
Thank you!
September 15, 2010
3 Comments • Newest first
@Underfree We had around 112 questions in total, so I did as many as I could possibly do. These are the ones I didn't really get.
@mynaginata Unfortunately, I do. This is unfortunate because my teacher is a stupid 50 year old who gives kids that try 60s and good looking girls 90s.
Do your own homework.