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Lady bird [3.3K]
4 years ago
9

Selma made an error while creating a chart to describe the technological design process for a new vacuum. Which best describes h

ow Selma can correct the error in her chart? Change “Identify a need” to “Identify a problem.” Switch the descriptions for “Identify a need” and “Evaluate the solution.” Change “Implement the solution” to “Test the prototype.” Switch the stages “Evaluate the solution” and “Design a solution.”

Chemistry
1 answer:
andre [41]4 years ago
3 0

Answer:

D

Explanation:

just did the test

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igor_vitrenko [27]

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Use the data set to answer the question.
andrezito [222]

Answer:

It is both accurate and precise.

Explanation:

Precision and accuracy are two different terms used to describe data or measurements. Accuracy refers to how close a set of measurements/experimental values is to an accepted or correct value while Precision refers to how close a series of experimental values are to one another.

In the given set of data in the question below, the Correct Value is 59.2 while the experimental values are as follows;

Trial 1: 58.7

Trial 2: 59.3

Trial 3: 60.0

Trial 4: 58.9

Trial 5: 59.2

Based on comparison, it can be observed that these experimental values are close to the correct value (59.2). Hence, they are said to be ACCURATE. Also, the experimental values are close to one another, hence, they are said to be PRECISE.

Therefore, the data set is both accurate and precise.

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Balance this equation. Not all spots have to have a number.
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2Na+2H2O----2NaOH+H2

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According to Reference Table V, which is the strongest Brönsted base?
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How is the number of unpaired valance electrons in an atom related to the number of bonds that the atom can form?
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