How many moles of chlorine (cl) atoms are in a sample of 1.72 × 1022 atoms?
a. 0.0286 mol cl
b. 35.0 mol cl
c. 1.03 × 1023 mol cl
d. 1.04 × 1046 mol cl

Use examples from the article to explain one positive and one negative effect that chemistry has had on society

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.