Chemistry, 08.07.2021 05:00 mckennacwilliams

Qué concentración debe tener el alcohol que utilizamos para limpiar las superficies por el coronavirus? ¿Cómo lo prepararían si disponen de una botella de 200 ml de alcohol? ¿Cuánta agua deberían agregarle?

Answers: 2

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 12:00

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

Answers: 1

Answer

Chemistry, 23.06.2019 07:00

An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o

Answers: 2

Answer

Chemistry, 23.06.2019 08:30

According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.

Answers: 1

Answer

Chemistry, 23.06.2019 09:20

Four statements about the development of the atomic model are shown below. a: electrons have wavelike properties. b: atoms have small, negatively charged particles. c. the center of an atom is a small, dense nucleus. d: atoms are hard, indivisible spheres. which order of statements represents the historical development of the atomic model? c-d-a-b c-d-b-a d— в-а — с d-b-c-a

Answers: 1

Answer

You know the right answer?

Qué concentración debe tener el alcohol que utilizamos para limpiar las superficies por el coronavir...

Questions

Chemistry, 05.03.2021 21:10

How many moles Na2O can be made from 5.7 moles of NaCI and 1.8 moles of CaO?...