How many moles in 65.5 grams of chlorine

One mole of copper equals about how many atoms? a. 16 atoms b. 6000 atoms c. 6.02 * 1023 atoms d. 1.66 * 10-22 atoms

8 Which elements have the most similar chemical properties? (1) Si, As, and Te (3) Mg, Sr, and Ba (2) N2, O2, and F2 (4) Ca, Cs, and Cu

What are 2 pros and cons for nuclear power plant.

A compound contains 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen (by mass). calculate the empirical formula.

Which phrase describes one characteristic of radioactive elements? are produced in a laboratory O decay at a constant rate O have a consistent number of particles release energy and particles to maintain radioactivity

If I have 325 mL of oxygen gas at a temperature of 25°C, and I heat it to a temperature of 75°C, what is the new volume (in mL) ?

C5H8 + _02 = 8h2o+5co2

Which statement about enzymes is true? They are large molecules that decrease the rate of reactions in the body. They are large molecules that increase the rate of biologicallyimportant reactions. They slow the rate of chemical reactions.

How many seconds are you in school every week?

A student decreases the temperature of a 417 cm³ balloon from 278 K to 231 K. Assuming constant pressure, what should the new volume of the balloon be? 376 cm³ 417 cm³ 462 cm³ 924 cm³