charmhoward5925 charmhoward5925

20-01-2018
Chemistry

contestada

How much water should be added to 20 ml of 20% alcohol solution to reduce the concentration to 10%?

Respuesta :

mindi14 mindi14

01-02-2018

20 more ml using inverse ratio method
20 : 20%
x : 10%

(20 × 20) ÷ 10 =40
40 - 20= 20

Answer Link

Otras preguntas

a rose garden is circular. The diameterof the garden is 18ft. which is closest to the total areaof the garden

Fossils allow scientists to determine when and for how long a certain species lived. What can scientists deduce from this discovery? A. earth's life has changed

Anne-Marie has saved 9 dollars for a new coat. That is 1/6 as much money as she needs. How much does the coat cost?

Which additional word or words in the sentence should be capitalized? The name for the Jewish holiday that celebrates a new year is rosh hashanah in hebrew. Cho

Which of these is an exclusive power of the House of Representatives? A. to amend a bill B. to impeach a government official C. to check the power of the presid

a singular subject takes a what kind of verb

Which of the following flowcharts is accurate? A. RNA→ protein→ DNA→ trait B. DNA→ RNA→ protein→ trait C. DNA→ protein→ RNA→ trait D. RNA→ DNA→ trait→ protein

Which of the following is associated with Qin San Shi? 1.the construction of a major road system throughout ancient 2. China the last emperor to rule before the

are all living things made up of two or more cells true of false

can i get some information of shiites and sunnis that explains there split up??