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Ronch [10]
2 years ago
8

Tijuan mixed a solid and a liquid together in a beaker. He determined that a chemical change occurred. If his conclusion is corr

ect, which substances could he have been observing and why? ice mixed into warm oil, because the change of state that occurred when the ice melted cannot be reversed baking soda mixed into vinegar, because the production of bubbles indicates that a new substance formed sugar mixed into hot water, because the disappearance of solid indicates that the chemical identity of the sugar changed sand mixed into water, because when sand was added the mass of the beaker increased.
SAT
1 answer:
mariarad [96]2 years ago
3 0

Answer:

Your answer is B baking soda

Explanation:

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Which of the following are units that can be used to describe vector
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All but kg can be vector quantities.

m/s^2 is acceleration. in the formula F = m*a the acceleration has direction and that means that force has direction. If you place an object on a table, there are 2 vectors in operation: one tends to move down (gravity) and one points up (the table top). The object would like to move but cannot, because the forces are equal but in opposite directions.

meters can be a vector or the unit of a vector. It is called displacement when it has direction.

km / hr. Since meters can be a vector, so can km. This is a velocity (or can be). When the direction is not specified, km/hr is a speed. It might describe the movement of a snail.  hours really have no direction. hours can't go up, or down or left or right, the way km can. So hours add nothing to the question.

kg are units of mass. Mass really has no direction associated with it. Don't confuse mass and weight. Weight does have a direction, but mass does not.

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Oh ee oh ah ah ting tang walla walla bing bang. points to whoever figures out what sing this is.
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I instantly thought of Alvin and the Chipmunks!

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<h3>m=y2-y1/x2-x1</h3>

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