A surface that loses electrons becomes positively charged

A piece of copper at 10 °C is dropped into a glass of water at 35 °C. Which statement is correct? A. Heat will flow from the copper to the water in the glass until both reach the same temperature. B.

A toothpaste company developed a new product. On the package, they printed the claim, "5 out of 5 dentists recommend this product!" Should a consumer trust this statement? A. No; they didn't explain the word "recommend." B.

What is the difference between foliated and non-foliated metamorphic rocks

What is the chemical formula for popcorn?

How many atoms are in 3.40 moles of sugar?

The characteristic flame test colors of metal ions are due to atomic emission spectra. Duscuss the relationship between the absoption and emission of light and the factors responsible for flame test colors.

Should a bartender use ice and scoop directly from ice machine or use an ice holding device and scoop to make drinks and refill drinks from

What classification should this reaction have? 4Al + 3O2 → 2Al2O3

If you start with 100 grams of a radionuclide, how much will you have after two half-lives have passed?

Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.