Which of these elements has four total electrons in its outer p orbitals?

A) barium (Ba)

B) nitrogen (N)

C) silicon (Si)

D) sulphur (S)

What is the net ionic equation of the reaction below? K2CO3 (aq) + CaCl2 (aq) - -> 2 KCl (29) + CaCO3 (s)

What was the first particle discovered inside an atom

Balance the equation MnO2 + HCl → Cl2 + MnCl2 + H2O using the smallest possible integer coefficients. What is the sum of the coefficient?

Name the following ionic compounds involving ionic bonds

Why is water the universal solvent? solubility, solute, solvent, dissolve?

Correctly identify the generic formula for a synthesis reaction. a. AB + A+B b. A+B → AB c. CxHx + O2 → CO2 + H2O d. AB + C + AC + B e. AB + CD → AD + CB

Zinc phosphide, Zn3P2, is often used as a rat poison. Phosphorus has 5 valence electrons. How many valence electrons does each zinc atom lose?

Nonrenewable resources are?

Watch the animation, then check off the samples that will conduct electricity. Check all that apply. View Available Hint (s) Check all that apply. NaCl solution Solid NaCl Solid sugar Sugar solution

Burning wood represents a chemical change. True or False?