Answer:D. Ratio of oxygen/nitrogen
Explanation: the ratio will never change no matter the air pressure!
B. The limiting reactant determines the max amount of product that can be formed
Silicon has 14 protons Potassium has 19 electrons The neutrons are equal to the mass number minus the atomic number. Or the big number minus the small number on the periodic table. hydrogen 1 does not have a neutron.
iron =56 -26 for 30 neutrons in the nucleus
Chlorine 17 protons and 17 electrons. 18 or 19 neutrons on average.
Answer:
magnesium chloride (no prefixes)
Any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.
