Cặp chất nào sau đây có thể dùng để điều chế so2 trg phòng thí nghiệm
a al và h2so3 loãng
b N...
Chemistry, 23.07.2021 07:10 Ezekielcassese
Cặp chất nào sau đây có thể dùng để điều chế so2 trg phòng thí nghiệm
a al và h2so3 loãng
b NAOH và dung dịch hcl
c na2so4 và dung dịch hcl
d na2so3 và dd hcl
Answers: 1
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(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.
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As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter
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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
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Increasing the substrate concentration in an enzymatic reaction could overcome which of the following? a) the need for a coenzymeb) allosteric inhibitionc) competitive inhibitiond) insufficient cofactors
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