An atom has an atomic mass of 27 and 13 neutrons, how many electrons will this atom have?

When a 3.22 g sample of an unknown hydrate of sodium sulfate, na2so4 ⋅ h2o (s), is heated, h2o (molar mass 18 g) is driven off. The mass of the anhydrous na2so4 (s) (molar mass 142 g) that remains is 1.42 g. The value of x in the hydrate is?

The energy required to remove an electron from an atom is known as

What is the vertical movement of the surface of a body of water called?

What change occurs if solid metal is heated at a very high temperature

Exponatial notation is used for a / writing very small numbers b/writing very large numbers c/avoid tedious work d/all above

Calculation of Hydrogen Ion Concentration from pH What is the H1 concentration of a solution with pH of (a) 3.82; (b) 6.52; (c) 11.11?

How does the sun heat the side of the Earth facing away from it?

Which of the following is true about the weight of an object? A. It remains same for the object. B. It cannot be measured accurately. C. It is a force acting on the object. D. It is always less than the mass of the object.

State three characteristics of matter?

What is an example of sustainability