Answer:
Measuring distances to stars through stellar parallax. Measuring distances to stars through the moving cluster method. Astronomers measure the temperature of a star by looking at the star's color and its spectrum. The apparent brightness of a star tells how bright it seems to us
Explanation:
The substances present before the reaction are the reactants. (As the reaction goes through, the substances that are produced are called the products of the reaction).
Answer:
sorry please can you snap the diagram ...the question is not clear to my understanding
Answer:
copper
Explanation:
it's on the periodic table of elements
It is B that one has the most mass
