Chemistry, 06.05.2020 19:18 chantelljenkins2
Rank these solutions from the most alkaline (1) to the least alkaline (5). pOH = 0.5 pH = 3.5 [OH–] = 5.62 × 10–5 M [H3O+] = 3.16 × 10–7 M pH = 0.5
Answers: 2
Chemistry, 21.06.2019 15:30
Anurse practitioner prepares an injection of promethazine, an antihistamine used to treat allergic rhinitis. if the stock bottle is labeled 25 mg/ml and the order is a dose of 11.0 mg , how many milliliters will the nurse draw up in the syringe?
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Chemistry, 22.06.2019 10:30
Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o → k + o2 (b) na + i2 → nai (c) cu(no3 )2 + naoh → cu(oh)2 + nano3 (d) kclo3 → kcl + o2 (e) ca(no3 )2 + hbr → cabr2 + hno3 (f) sn(oh)2 → sno + h2 o (g) p4 + n2 o → p4 o6 + n2 (h) fe + al2 (so4 )3 → feso4 + al (i) alcl3 + na2 co3 → al2 (co3 )3 + nacl (j) c3 h6 + o2 → co2 + h2 o
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Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
Answers: 1
Chemistry, 22.06.2019 22:10
What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added
Answers: 1
Rank these solutions from the most alkaline (1) to the least alkaline (5). pOH = 0.5 pH = 3.5 [OH–]...
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