Chemistry, 11.02.2021 02:30, bommat1085
What is the number of electrons needed for Hydrogen, Oxygen, Nitrogen, and Carbon to fill their outermost “shells and satisfy the Octet Rule?” (for example, Hydrogen needs one more electron…). How long do hydrogen bonds last? Why are they collectively so strong? Are they “true” bonds? Explain
Answers: 3
Chemistry, 22.06.2019 14:00, BrandyLeach01
How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?
Answers: 3
Chemistry, 22.06.2019 18:00, kingamir
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 18:00, ameliaxbowen7
Heat is the total potential energy of a substance that can be transferred. true false
Answers: 1
Chemistry, 22.06.2019 18:50, cj31150631
Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.
Answers: 1
What is the number of electrons needed for Hydrogen, Oxygen, Nitrogen, and Carbon to fill their oute...
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