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Olin [163]
3 years ago
13

A group of students is investigating whether aluminum is a better thermal conductor than steel. The students take an aluminum wi

re and a steel wire of the same length and diameter. They put equal lengths of wax on one end of each wire and dip the other end into a beaker of hot water. The length of wax left on the wires after 10 minutes is shown.
Experimental Observations
Aluminum Steel
Original length of wax 2.5 cm 2.5 cm
Length of wax after 10 minutes 1.2 cm 1.8 cm


Which step should the students take next?
A. Make a hypothesis
B. Analyze the data
C. Test another variable
D. Share their conclusion
Chemistry
2 answers:
Mademuasel [1]3 years ago
7 0

The students have conducted an experiment to check their hypothesis on the thermal conductivity of two metals; Aluminum and steel. The experimental observations have been noted, and the next step based on the scientific procedure is to analyze the data.

Analysis of data suggests that; since the length of wax after 10 min is lower in Al than steel, aluminum is a better thermal conductor.

Ans B) Analyze the data

lions [1.4K]3 years ago
7 0

Answer:

anylize the date

Explanation:

got it right on exam

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Answer :

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Explanation:

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Write the condensed nd structural formulas as well as the names for all isomers of C3H5Cl3.
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Answer:

1) 1,1,1-trichloropropane

2) 1,1,2-trichloropropane

3) 1,2,2-trichloropropane

4) 1,2,3-trichloropropane

Explanation:

For this question, we must remember that isomers are molecules that have the <em>same formula but different structure</em>s. For the formula C_3H_5Cl_3 we can draw a <u>linear chain of three carbons</u> and change the position of the chlorine atoms in the carbon chain.

With this in mind, if we put all the chlorine atoms on the same carbon we will get <u>1,1,1-trichloropropane</u>. If we change an atom from chlorine to carbon 2 we will obtain <u>1,1,2-trichloropropane</u>. If we move another chlorine atom to carbon two we will get <u>1,2,2-trichloropropane</u>. Finally, if we put a chlorine atom in each carbon we will obtain <u>1,2,3-trichloropropane</u>.

See figure one for further explanations

I hope it helps!

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