Which of the following is a physical change? A newspaper burns when placed in a fire. An iron chair rusts when left outside. A s

Question

2 years ago

6

Which of the following is a physical change? A newspaper burns when placed in a fire. An iron chair rusts when left outside. A s

ample of water boils and releases gas. A plant changes carbon dioxide and water into sugar. Question 3(Multiple Choice Worth 2 points) Which of these statements best describes the relationship between elements, compounds, and pure substances? Pure substances can be divided into two groups: elements and compounds. Compounds can be divided into two groups: pure substances and elements. Elements and pure substances are two of many different types of compounds. Pure substances and compounds are two of many different types of elements.

Biology

2 answers:

kvasek [131] · Answer 1 · 2022-05-25T06:15:38+03:00

kvasek [131]2 years ago

8 0

The answer is: Pure substances can be divided into two groups: elements and compounds.(For 2nd question)

allsm [11] · Answer 2 · 2022-05-25T05:14:34+03:00

allsm [11]2 years ago

7 0

A because a physical change , changes the appearance. the multiple choice question is A.