Two independent variables could change at the same time, and you would not know which variable affected the dependent variable
<span>The first method to determine the chemical composition of a substance in space was using light. By determining red shift in the observed spectrum of light they could determine the elements they were observing. Different elements change the way light behaves and from this scientists can determine the makeup of things such as stars and nebulas.</span>
If pH+ is 7
It is Neutral solution
Answer:
3 (three)
Explanation:
2 Fe + 3H2SO4 = Fe2(SO4)3 + 3 H2 (basically just balance both sides)
A. Pyrite is an ore of gold and is used to jewelry making is a false statement
