gabriellax2352 gabriellax2352

22-07-2020
Biology

contestada

Dentre as alternativas a seguir,a única que é uma mistura é: ( )Um átomo de oxigenio ( )Àgua destilada ( )O ar atmosférico ( )O gás ozoio me ajudem por favor...

Respuesta :

22-07-2020

Answer:

Atmospheric air

Explanation:

Atmospheric air is a mixture of nitrogen, oxygen, argon, and small amounts of other gases.

A is wrong. A flask of oxygen atoms has nothing else in it. The O atoms are a pure substance.

B is wrong. A flask of distilled water contains only water. The water is a pure substance.

D is wrong. A flask of ozone contains only ozone. Ozone is a pure substance,

Answer Link

Otras preguntas

A firecracker shoots up from a hill 145 feet high with an initial speed of 80 feet per second. Using the formula H(t) = -16t2 + vt + s, approximately how long w

A submarine is dividing to a total depth of 45 feet.It descends 15% of the total depth in 1 minute. How deep will the submarine be after 4 minutes?

find the domain and range of the function: f(t)=sec[((pi)t)/4]

a number added to 8 times the numbers reciprocal is 6. find the numbers

A newborn child is experiencing severe heart problems and has abnormally short limbs. What could have affected cell differentiation during embryonic growth?

Jay, a freelance editor, charges the rates shown in the table below to edit manuscripts. The cost per page increases as the quality of editing improves. Jay als

Which of the following statements about tsunami waves is true? Tsunami waves travel at slower speeds than surface waves do. Tsunami waves have a greater wave he

The measures of 5 of the interior angles of a hexagon are: 130°, 120°, 80°, 160°, and 155°. What is the measure of the largest exterior angle? a)100° b)105° c)

What do you think would happen to a habitat if the plant diversity declines?

A scientist who is researching marshes observes that marsh grass, Spartina bakeri, grows to different heights at different locations in the marsh. If the scien