Chemistry, 13.09.2019 02:10 kobiemajak
Which of the following reactions is incorrectly labeled?
a. hcl(aq) + naoh(aq) = nacl(aq) + h2o(l) – precipitation reaction.
b. ch4(g) + 3 o2(g) = co2(g) + 2 h2o(l) – combustion reaction.
c. no right choice.
Answers: 3
Chemistry, 21.06.2019 17:50
Which best describes why nh4+ can form an ionic bond with cl-?
Answers: 3
Chemistry, 22.06.2019 16:10
Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)
Answers: 2
Chemistry, 22.06.2019 20:00
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.
Answers: 3
Chemistry, 22.06.2019 22:40
Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent
Answers: 1
Which of the following reactions is incorrectly labeled?
a. hcl(aq) + naoh(aq) = nacl(aq) + h...
a. hcl(aq) + naoh(aq) = nacl(aq) + h...
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