![sheilashair](/avatars/28153.jpg)
sheilashair
21.01.2021 •
Physics
The graph below shows the composition of the air we breathe. Which of the following statements correctly classified the air we breathe?
A. The air we breathe is an element because it is made of pure substances
B. The air we breathe is a compound because it is made of different pure substances.
C. The air we breathe is a heterogeneous mixture because it had visibly different substances and phases.
D. The air we breathe is a homogeneous mixture because it has substances but the same appearance throughout.
Solved
Show answers
More tips
- S Society and Politics Secrets of NATO: Which Countries are Part of the Alliance?...
- H Health and Medicine Is Massage Necessary? Facts and Opinions...
- C Computers and Internet Clearing Cache: How to Speed Up Your Browser...
- S Style and Beauty How are artificial nails removed?...
- S Style and Beauty Secrets of Tying a Pareo: 5 Ways...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
Answers on questions: Physics
- P Physics Three liquids are at temperatures of 10 ◦C, 25◦C, and 32◦C, respectively. Equal masses of the first two liquids are mixed, and the equilibrium temperature is 12◦C. Equal masses...
- P Physics A jar of tea is placed in sunlight until it reaches an equilibrium temperature of 32.7 ◦C . In an attempt to cool the liquid, which has a mass of 186 g , 101 g of ice at 0.0 ◦C...
- P Physics An iron nail is driven into a block of ice by a single blow of a hammer. The hammerhead has a mass of 0.6 kg and an initial speed of 1 m/s. Nail and hammer are at rest after the...
- P Physics Suppose your hair grows at the rate 1/32 inches everyday. find the rate at which grows in nano meters per second. because the distance between atoms in a molecule is on the order...
- P Physics Tall buildings like burj khalifa have wide foundations why? ?...
- P Physics A 1.5 kg baseball is pitched at 38 m/s and is hit by the batter. It heads directly back at the pitcher at 27 m/s. a) Find the impulse applied to the ball. b) If the bat is in...
- P Physics Last night took an L but tonight I bounce back. haven t heard truer words...
- M Mathematics Jermaine asked 60 students which fruit they liked best. He recorded his results in a pie chart. Which probabilities show the chance the next person he asks will like the given...
- M Mathematics Please help, i will give brainliest....
- M Mathematics Scientists studied the decay of a radioactive element. The mass of the element reduces by a factor of, after each half-life, as shown in the table. Breazy - Ch... Radioactive...
Ответ:
D. The air we breathe is a homogeneous mixture because it has substances but the same appearance throughout.
Explanation:
The air we breathe is a homogeneous mixture.
Air is a mixture of many gases. A homogeneous mixture is one whose constituents exists in one phase.
Air is a gas - gas mixtures.
A mixture has indefinite composition. They consist of two or more elements and or compounds in any proportion by mass.
Constituents retain their identities i.e. physical properties are retained.
Ответ:
D. 292,338 J
This is the correct answer :)