an element has atomic number 10 and an atomic number mass of 20. How mamy neutrons are in the atom of this element?

Ww is an example of. WW is an example of. ww is an example of.

What is the purpose of adding oil to a car's engine? A To increase the mass of the engine so it can pull larger loads B To increase the temperature and pressure of the engine C To reduce friction and allow the engine to run more smoothly D To

Is the following nuclear equation balanced? 218/85 At---> 218/84 Po + 0/-1 B? a) yes b) no

Name the following compound: CH2 = CH - CH3 propyl Propane 1-propene 2-propyne

What is the light transmission of roentgenium

How does oxygen obey the octet rule when reacting to form compounds? A) It gains electrons. B) It gives up electrons. C) It does not change its number of electrons. D) Oxygen does not obey the octet rule.

Which equation obeys the law of conservation of mass? A. 2Fe+3O2 - -> 2Fe2O3 B. 4Fe+O2--> 2Fe2O3 C. Fe+O2--> Fe2O2 D. 4Fe+3O2--> 2Fe2O3

Why do airbags fill evenly with gases?

In which of the following reactions will Kc = Kp? In which of the following reactions will Kc = Kp? (A) SO3 (g) + NO (g) ↔ SO2 (g) + NO2 (g) (B) 2 N2 (g) + O2 (g) ↔ 2 N2O (g) (C) 4 NH3 (g) + 3 O2 (g) ↔ 2 N2 (g) + 6 H2O (g) (D) 2 SO2 (g) + O2 (g) ↔ 2

Which tool is most suitable for a chemist to measure the mass of a liquid