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pickupchik [31]
3 years ago
14

Please help this is due today

Chemistry
1 answer:
PilotLPTM [1.2K]3 years ago
8 0
A. Solid Liquid Gas
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This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment. this part contains a
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The amount of heat transferred in and out of the system is measured by calorimetry. The thermometer in the calorimeter is used to measure the temperature.

<h3>What are the parts of the calorimetry device?</h3>

The thermometer (A) is a device used to measure the final and the initial temperature of the water or any other liquid in a system. A metal vessel is a place where the reaction mixture is present.

In-vessel (B), water, and metal are placed before the beginning of the experiment. The styrofoam cup or the outer metal vessel (C) insulates the instrument, from regulating the heat transformation.

Therefore, part A measures the temperature of the reaction mixture.

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2 years ago
A glow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produ
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A glow stick will glow longer at lower temperatures than at room temperature, one can infer from the observation. Temperature and reaction time are the test variables.

We notice in this reaction that a glow stick stored in the freezer lights for a longer period of time than a glow stick stored at normal temperature. This implies that temperature affects how long a response lasts.

The most straightforward explanation for this observation is that glow sticks glow longer in colder temperatures than they do at room temperature; as a result, glow sticks kept in the freezer are observed to glow longer than glow sticks kept at room temperature.

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6 0
2 years ago
Which substance is a heterogeneous mixture
Anton [14]
Mixtures of sand and water or sand and iron filings, a conglomerate rock, water and oil, a portion salad, trail mix, and concrete (not cement).
6 0
3 years ago
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Mr. Bullis wants to know if he gives teachers candy, it will make them smile more. He gives half the teachers candy and the othe
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Answer:

the experimental group would be the teachers who recieved the candy

control group would be the teachers who dont get any candy

<em>Explanation:</em>

experimental group is the group that receives the test variable being tested in this case the variable being the candy

and the control group is the group who doesn't receive the variable

purpose of having a control is to rule out other factors which may influence the results of an experiment.

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3 years ago
A mixture is -
Fiesta28 [93]

Answer:

C

Explanation:

an impure substance made through chemical process

8 0
3 years ago
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