The atomic number of nitrogen is 7. The number of electrons a neutral nitrogen atom has is

While traveling, an airplane passenger placed a bag of potato chips in his checked luggage. When he opened the luggage, the bag had exploded and potato chips were everywhere in his luggage. Which gas law is this an example of?

Only a few elements are dissolved in sea water. True or False

Which of the following is not one of the three categories of mechanical waves?

Convert 23 calories into kcal

15. Why does the mass on the periodic table for a particular element not equal the mass of any atom of that element.

What should you use if you wan to measure ph correctly?

One international nautical mile is defined as exactly 6076.1155ft, and a speed of 1 knot is defined as one international nautical mile per hour. Question what is the speed in meter per second of a boat traveling at a speed of 18.8 knots

Which of the following is the best example of a valid hypothesis? A People should eat vegetables. B Children like Jiffy™ peanut butter better than Skippy™ peanut butter.

Is freezing water a physical or chemical change

When would a cell use Active Transport? Mark all that apply. a. When the cell needs to move a compound down its concentration gradient. b. When the cell needs to move a compound against its concentration gradient. c.