Chemistry, 11.01.2020 17:31 FailingstudentXD

Which statements are correct about silicon?

a metalloid
b atomic number is 28
c atomic weight is 14
d has similar properties as al and p
e has similar properties as ge
f belongs to period 3

Answers: 3

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 12:10

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

Answers: 1

Answer

Chemistry, 22.06.2019 14:30

Which substance has non polar covalent bonds

Answers: 1

Answer

Chemistry, 22.06.2019 23:00

Need asap question 1 minerals are organic compounds. true false question 2 what vitamin can be found in foods like oranges, grapefruits, and broccoli? a. vitamin a b. vitamin k c.vitamin c d. vitamin d question 3 what are minerals? a. chemical elements that are needed for body processes. b. organic compounds that the body needs in small amounts to function properly. c. small molecules used to build proteins. d. an organic compound that is insoluble in water and includes fats. question 4 how many types of vitamins does the human body need? a. 15 b. 11 c. 13 d. 17 question 5 vitamins are a good source of energy. true false

Answers: 1

Answer

Chemistry, 23.06.2019 08:40

Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.

Answers: 1

Answer

You know the right answer?

Which statements are correct about silicon?

a metalloid
b atomic number is 28
...

Questions