Chemistry...picture attached
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Chemistry, 21.06.2019 22:30
How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles
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Chemistry, 22.06.2019 02:30
List four observations that indicate that a chemical reaction may be taking place
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Chemistry, 22.06.2019 18:00
Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]
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Chemistry, 22.06.2019 19:30
What is the common name for the compound shown here? enter the common name of the compound shown?
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History, 04.05.2021 19:50
History, 04.05.2021 19:50
Mathematics, 04.05.2021 19:50
Mathematics, 04.05.2021 19:50
Mathematics, 04.05.2021 19:50
Mathematics, 04.05.2021 19:50
Mathematics, 04.05.2021 19:50
Mathematics, 04.05.2021 19:50