Name cations, anions, and ionic compounds

Select the correct answer. Haley rubs a cotton cloth along a plastic strip. The plastic strip becomes positively charged. Why did this happen?

Potassium-40 (K-40) decays into argon-40 (Ar-40). Which of the following are true statements? Select all that apply. A. K-40 is the parent, and Ar-40 is the daughter. B. Ar-40 is the parent, and K-40 is the daughter. C.

If you dissolve 23 g of ammonium chloride in 500.0 mL of water, what is the molar concentration of the solution?

Which intermolecular force is the strongest? A. dipole-dipole B. dipole-induced dipole C. hydrogen bond D. London dispersion

Describe all lab equipment which would be required if you wanted to heat a chemical to 1500ºC. Can your explain in detail?

Why is there no change in the temperature when the process of melting takes place?

Summarize the acid-base behavior of the main-group metal and nonmetal oxides in water. How does oxide acidity in water change down a group and across a period?

What is an atom?

Sodium will react with oxygen to form sodium oxide. use the formula below to determine how many grams of sodium oxide will be formed if 46 grams of sodium are used in the reaction.

How many atoms in 2.8 mol of neon?