Answer:
1 . 26
2. 55.854
Explanation:
because atomic number is the number of proton in other words smaller number and the mass number is the number of neutrons and electrons in other words bigger number .
hope this make sense :)
Answer:
True
Explanation:
Define purpose.
Construct hypothesis.
Test the hypothesis and collect data.
Analyze data.
Draw conclusion.
Communicate results.
C. a scientific approach to answering questions
D is the answer, I believe.
An isolated system is one that allows neither heat or matter to enter or exit, and since the liquid remained the same temperature, one can conclude that neither energy nor matter is passing through.