Which of the following statements are true about whether atoms tend to gain or lose electrons? a. atoms with five, six, or seven valence electrons will lose electrons. b. atoms with one, two, or three valence electrons will lose electrons. c. atoms with four valence electrons will always gain electrons. d. atoms with eight valence electrons usually do not gain or lose electrons.

Achef makes salad dressing by mixing oil, vinegar, and spices, as shown. which type of matter is the salad dressing?

How does the viscosity of magma change as magma cools?

Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.