A delivery truck drives 6 miles West before turning right and driving 12 miles North to make a delivery. ( use Pythagorean Theorem)

What element has similar physical and chemical properties as boron.

Select the statement that describe chemical properties a. antacid tablets neutralize stomach acid b. helium is the lightest monatomic element c. water freezes at 0 celsius d. mercury is liquid at room temperature

Which of the following is true for a reliable scientific source? it cites logic. it cites opinions. it cites valid data. it cites common sense.