Chemistry, 27.04.2021 20:40 derisepicowe0fa
2. Which is the term for a material's ability to burn in the presence of oxygen?
malleability
flammability
conductivity
reactivity
Answers: 2
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Which substances have the lowest melting points: ionic covalent, or metallic
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Which process transfers heat from inside earth to its surface? convection currents in mantle pulling away of tectonic plates drawing in of tectonic plates convection currents in crust
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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]
Answers: 1
Chemistry, 22.06.2019 20:00
How are the terms group and period used on the periodic table
Answers: 1
2. Which is the term for a material's ability to burn in the presence of oxygen?
malleability
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