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Katen [24]
3 years ago
12

What is (2.5x10²)² =

Chemistry
2 answers:
siniylev [52]3 years ago
8 0
The answer is 6.25 x 10^4.
s344n2d4d5 [400]3 years ago
5 0
1000 cause 10^2is 100 so it’s 2.5x100and that equals 250 x2x2 =1000
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(AKS 2e) Group 2 metals bond with nonmetals or polyatomic ions. What question
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Answer:

Will group 2 elements lose electrons to bond with nonmetals in group 17 in a

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Explanation:

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3 years ago
In semiconductor manufacturing, wet chemical etching is often used to remove silicon from the backs of wafers prior to metalliza
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Sample means for solutions 1 and 2 are 19.27 and 10.32 respectively

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The total for answer 1 is given by:

9.7+10.5+9.4+10.6+9.3+10.7+9.6+10.4+10.2+10.5 = 192.7

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192.7/10 = 19.27

For solution 2, the sum is given by:

10.6+10.3+10.3+10.2+10.0+10.7+10.3+10.4+10.1+10.3 = 103.2

The sample size is 10, this gives us

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The total for answer 2 is given by:

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Learn more about semiconductor manufacturing here brainly.com/question/22779437

#SPJ4.

In semiconductor manufacturing, wet chemical etching is often used to remove silicon from the backs of wafers prior to metalization. The etch rate is an important characteristic in this process and is known to follow a normal distribution. Two different etching solutions have been compared, using two random samples of 10 wafers for each solution. Assume the variances are equal. The etch rates are as follows (in mils per minute): Solution 1 Solution 2 9.7 10.6 10.5 10.3 9.4 10.3 10.6 10.2 9.3 10.0 10.7 10.7 9.6 10.3 10.4 10.4 10.2 10.1 10.5 10.3 Calculate sample means of solution 1 and solution 2

4 0
1 year ago
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tia_tia [17]

Explanation:

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This is intended as a class practical. It is best if the students work in pairs because setting up and starting the experiment requires more than one pair of hands. One student can add the magnesium ribbon to the acid and stopper the flask, while the other starts the stopclock. During the experiment, one student can take the readings while the other records them. The experiment itself takes only a few minutes. But allow at least 30 minutes to give students time to set up, take readings and draw graph.

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3 years ago
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Answer:

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Explanation:

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