## Answers

I think the question is talking about what type of matter it is classified as?

1. Sea water contains many elements and since sea water is uniform throughout and there is no solid and liquid mixed together such as sand and water, soSea water can be considered a

:: Homogeneous Mixture :: or a solution

2. The cylinder is Filled with pure NO2, this is a :: chemical compound :: which are substances of 2 or more elements joined together.

I think this is what you are looking for?

.

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