An Atom's mass number is 210 and its atomic number is 85. How many neutrons does the atom have?

a. 85

b. 125

c. 210

d. 295

How do forces between particles in solids compare to forces in the other states of matter? O A. The forces in solids are stronger than forces in liquids and gases. O B. The forces in solids are weaker than forces in liquids and gases. O C.

How many electron dot structure does phosphorus have?

If 4.8 moles of X and 3.4 moles of Y react according to the reaction below, how many moles of the excess reactant will be left over at the end of the reaction? 3X + 2Y "yields" / X3Y2 1.7 mol Y left over 1.6 mol X left over 0.2 mol Y left over 0.

Where are coefficients located

Which of the following is not true regarding a properly written chemical reaction

What is the relationship between law of conservation and chemical reaction?

How quickly must non-frozen ready-to-eat foods be consumed? 24 hours . 48 hours . 3 days . 7 days

I need a essay on what I learned in chemistry

1. What is the relationship between temperature and pressure of a gas in a closed system? 2. What is the relationship between the pressure and volume of a gas at a constant temperature

An atom of aluminum has an atomic number of 13 and a mass number of 27. How many neutrons does it have?