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tigry1 [53]
3 years ago
11

Which statement about gases is true? A. They are made up of particles that always move very slowly. B. They are made up of parti

cles that travel in a curved path when in motion. C. They are made up of hard spheres that vibrate quickly in stationary positions. D. They are made up of hard spheres that are in random motion.

Chemistry
2 answers:
rosijanka [135]3 years ago
7 0

Answer: D. They are made up of hard spheres that are in random motion.

Explanation:

A gas is a <u>state of aggregation of matter</u> in which, under certain conditions of temperature and pressure, <u>its molecules interact weakly with each other, without forming molecular bonds</u>, adopting the shape and volume of the container that contains them and tending to separate everything possible because of its <u>high concentration of kinetic energy</u>.

The molecules of a gas are practically <u>free</u> and have the ability to be distributed throughout the space in which they are contained because <u>the gravitational forces and attraction between them are practically negligible</u> compared to the speed at which they move. .

Therefore, gas molecules do not travel specific trajectories or vibrate in a stationary position, instead <u>they move quickly and randomly through the entire space of the container that contains them.</u>

zalisa [80]3 years ago
7 0

Answer:

They are made up of hard spheres that are in random motion.

Explanation:

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Verdich [7]
Answer: A. Salt in the Dead Sea is saltier
3 0
4 years ago
What types of mixtures are these? (Homogeneous Mixture Hetergeneous Mixture)
salantis [7]

Explanation: A <u>homogeneous mixture</u> is a solid, liquid, or gaseous mixture that has the same proportions of its components throughout any given sample. The components that make them up are evenly distributed and the appearance of the solution is uniform throughout.

A<u> heterogeneous mixture</u> has components whose proportions vary throughout the sample. The components of a heterogeneous mixture are visible and not uniform throughout. A heterogeneous mixture is simply any mixture that is not uniform in composition.

a) Peanuts and almonds mixed  together in a bowl  : The components(Peanuts and almonds) are visible in a bowl and are not evenly distributed and also not uniform throughout. So this is a 'heterogeneous mixture'.

b) Bucket full of sand and gravel  : The components(sand and gravel) are visible in a bucket and are not evenly distributed and also not uniform throughout. So this is a 'heterogeneous mixture'.

c) Cup of tea and sugar  : The components(tea and sugar) are evenly distributed and the appearance of the solution is uniform throughout. So this is a 'Homogeneous mixture'.

d) Food coloring dissolved in water : The components(Food coloring and water) are evenly distributed and the appearance of the solution is uniform throughout. So this is a 'Homogeneous mixture'.

4 0
4 years ago
Which of the following is the correct definition of radiant energy?
torisob [31]

Answer:

energy that is transmitted in the form of electromagnetic waves.

Explanation:

Radiant energy is the energy of electromagnetic waves. It is a form of energy that can travel through space. For example, we receive the heat from the sun, which is located very far from the earth via radiation. The sun's heat is not transmitted through any solid medium, but through a vacuum.

6 0
3 years ago
Read 2 more answers
How many significant figures are in the following number? 5.67 x 106<br> 3<br> 4<br> 5<br> 6
mixas84 [53]
3 these are 5,6&7 are the significant
6 0
4 years ago
A mixture of 15.0 g of aluminum sulfide and 10.0 g of water reacts according to the following equation:
masha68 [24]

(a) The mass of hydrogen sulfide produced in the reaction is 9.44 g.

(b) Water is the limiting reagent in the given reaction.

<h3>Mass of hydrogen sulfide produced</h3>

Al2S3 + 6H2O ---> 2Al(OH)3 + 3H2S

mass of water in the reaction = 6(18 g/mol) = 108 g/mol

mass of hydrogen sulfide in the reaction: = 3(34) = 102 g/mol

108 g/mol of H2O ------- > 102 g/mol of H2S

10 of H2O -----------> ?

= 9.44 g

Aluminum sulfide will be completely consumed by the reaction while some fraction of water will remain. Thus, water is the limiting reagent in the given reaction.

Learn more about limiting reagents here: brainly.com/question/26905271

#SPJ1

8 0
2 years ago
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