Pure substances- Chemical substance a form of matter having constant chemical composition and characteristic. Mixtures- A material made up of two or more different substances that are not chemically combined
Answer:
True
Explanation:
You should try to write down the key points of what your teacher is saying.
A comma cannot be used to correct most run-on sentences
Usually the issue with run on sentences is that they use too many commas, instead of breaking the sentence into two sentences.
Answer:
Claim
Explanation:
It is an opinion that cannot be definitively proven.
