2. What are the characteristics of a gas? a definite volume and definite shape
a definite shape but no definite volume
no definite shape or definite volume
no definite shape but a definite volume

brainliest answer

Explanation:

no definite shape or definite volume

No definite shape or definite volume

Explanation:

Gases have lower density than other states of matter, such as solids and liquids. There is a great deal of empty space between particles, which have a lot of kinetic energy

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the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

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im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.