Chemistry, 31.10.2020 02:10 bludragonfly33
1. How many protons does 9-Zr have? How many neutrons does 92Zr have?
Answers: 3
Chemistry, 22.06.2019 13:50
Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.
Answers: 1
Chemistry, 23.06.2019 03:00
Is it safe to take 450mg of diphenhydramine hydrochloride?
Answers: 1
Chemistry, 23.06.2019 05:40
Why is any chemical reaction always balanced? give reasons and explain the easiest way to solve the balancing problems in chemical equations with stoichiometric coefficients upto 20 as hit and trial doesn't always work. give full reasoning
Answers: 1
1. How many protons does 9-Zr have? How many neutrons does 92Zr have?...
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