20. An atom has a mass of 50 and 20 protons. How many

neutrons does it have?

Answer:

Which statement is true about compounds? They do not form living things. They do not form nonliving things. They are formed when electrons of different atoms combine. They are formed when atoms of different elements combine.

How many moles in 2.5 liters of methane gas

The metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off. Which kind of a change is seen in this process? ... a physical change ... a chemical change ... a nuclear change ...

Plants have functions that make them a (n) ? part of the world. ^Insignificant or vital

What mass of water forms when 2.75 x 10-4 mol NaOH reacts completely

Which element could chlorine bond with to form an ionic compound? helium oxygen fluorine sodium

A scientist conducted one trial experiment and got unexpected results. how can the scientist increase confidence in the results

A board measures 212 inches. How many feet is this?

Is neutralizing a base a chemical property

Polarity of a molecule depends on the polarity of individual bonds in that molecule. a. True b. False