Chemistry, 06.12.2021 09:50 joseaguilaroux4zh

Thép là hợp kim của sắt số với các bon và một tạp chất khác như Mn, Si, S, P. Trong đó lượng các bon là:
a) C < 2,14%  c) C = 2,14 ÷ 6,67% 
b) C ≥ 2,14%  d) C = 3 ÷ 4,5% 

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 12:30, AlexRavenwood127

What metric units would you use to measure the thickness of a key

Answers: 3

continue

Chemistry, 22.06.2019 16:10, 00015746

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)

Answers: 2

continue

Chemistry, 22.06.2019 18:10, pearfam98

Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)

Answers: 1

continue

Chemistry, 22.06.2019 19:10, aamu15

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

Answers: 3

continue

You know the right answer?

Thép là hợp kim của sắt số với các bon và một tạp chất khác như Mn, Si, S, P. Trong đó lượng các b...