Answer:
B. Students' ACCUPLACER scores might indicate that they need to
develop certain skills before enrolling in college-level coursework.
Explanation:
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.
Learn more about molarity here: brainly.com/question/20383725
Answer: .3 or 3/10
Explanation: The probability that her first answer is correct is 2/5. Since she got the first guess correct, now there is only 1 correct answer out of 4. There is a 3/4 chance she will get the next problem wrong
So: 2/5 x 3/4 = .3
Answer:
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The answers are hyper cortisol response and higher levels of physical aggression.
<h3>What is hyper cortisol?</h3>
When the body is exposed to excessive quantities of the hormone cortisol for an extended period of time, hypercortisolism, also known as Cushing syndrome, develops.
Mike lives in the northern united states (in minnesota) and nick lives in the southern united states (louisiana). when they both feel insulted by the same individual, nick will be more likely to have a(n) hyper cortisol response and show higher levels of physical aggression.
Cortisol is a stress-inducing hormone, according to research on hormones in the human body. Now, it has been proved that when it is hot in the summer, the cortisol hormone circulates in the blood in a very significant amount. This can result in frustration as well as physical hostility.
Thus, the answers are hyper cortisol response and higher levels of physical aggression.
Learn more about the hyper cortisol here:
brainly.com/question/16288547
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