The tone of the author in this passage from "When the birds get flu" can be described as caring.
<h3>What is the tone?</h3>
This refers to the general attitude of the author in a text when referring to the subject or topic the author describes. For example, a text about the pandemic might have a pessimistic or optimistic tone.
<h3>What is the tone in the excerpt?</h3>
This excerpt shows a rather caring tone, this is because the author seems to worry about the negative impact of the mad cow disease on farmers. This can be seen in excerpts such as:
- "the sad look on some owners’ faces"
- "the business they built from scratch was destroyed
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Answer:
<h3 /><h3>The preparatory test for the SAT is called the <u>PSAT</u>.</h3>
The Preliminary SAT/National Merit Scholarship Qualifying Test (PSAT/NMSQT) is a standardised test administered by the College Board and cosponsored by the National Merit Scholarship Corporation (NMSC) in the United States.
<h3 /><h3>Additional Information:</h3>
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Answer:
A) stratified
Explanation:
Total call including 6500 'yes' and 4100 'no' are 10600 and on each call there was a fifty cent charge. Total charge becomes 5300 $ so this is very straight forward data. And from this test two types of classes are made with cleared population in each class and such cleared population division is example of stratified sampling so this is right answer.
The mass of the acetic acid is 1.512 g.
<h3 /><h3>What is Molarity?</h3>
molarity is the concentration of a substance in mol per dm³
From the question,
The number of moles contained in the 30 mL vinegar is
- n = (0.84×30)/1000
- n = 0.0252 mol.
the molar mass of vinegar is calculated below.
- m.m of (HC₂H₃O₂) = [1+(12×2)+(1×3)+(16×2)]
- m.m = (1+24+3+32]
- m.m = 60 g/mol.
To calculate the mass of acetic acid, we use the formula below.
- R.m = n×m.m............. Equation 1
Where
- R.m = mass of acetic acid.
Substitute these values into equation 1
- R.m = (0.0252×60)
- R.m = 1.512 g.
Hence, The mass of the acetic acid is 1.512 g.
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