Which atoms will form ionic bonds? Potassium (p) and chlorine (Cl)

Carbon (C) and hydrogen (H)

Calcium (Ca) and nitrogen (N)

Sulfur (S) and fluorine (F)

How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles

Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3