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Pavel [41]
2 years ago
10

A researcher wants to conduct a study to see if playing chess improves memory. The researcher finds 50 individuals who play ches

s regularly and 50 that do not. Each of the 100 individuals are given a questionnaire designed to determine memory level. If the 100 individuals did not know they were participating in the study, which statement about the study is correct?.
SAT
1 answer:
inna [77]2 years ago
6 0

Answer:

This is an observational study

Explanation:

just took the test

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Select the best answer for the question.
mixas84 [53]

Answer:

the answer is C.

Explanation: That is the answer, because we have to put a filter over it so we don't breath poisonous air.

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5 0
3 years ago
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Explain how poverty can lead to social injustice
Ulleksa [173]

Poverty can lead to social injustice because the poor would be given little or no regard as compared to the rich.

<h3>What is social injustice?</h3>

Social injustice occurs when a less privilege individual or group is being treated unfairly by another, resulting in disadvantages to that individual or group, which can result in missed opportunities in terms of education, work, housing, health care, and more.

Poverty leads to social injustice because if a person is poor, they are not provided the things they need and they are not treated like how they should be. In other words, they are treated lowly compared to those who have higher social status in the society.

Hence, poverty can lead to social injustice because the poor would be given little or no regard as compared to the rich.

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7 0
1 year ago
When 2. 0 m aqueous solutions of sodium bicarbonate and hydrochloric acid react, it produces carbon dioxide, water and sodium ch
OLEGan [10]

The number of mole of carbon dioxide, CO₂ formed from the reaction is 0.0632 mole.

<h3>How to determine the mole of NaHCO₃</h3>
  • Molarity of NaHCO₃ = 2 M
  • Volume = 31.6 mL = 31.6 / 1000 = 0.0316 M
  • Mole of NaHCO₃ =?

Mole = Molarity x Volume

Mole of NaHCO₃ = 2 × 0.0316

Mole of NaHCO₃ = 0.0632 mole

<h3>How to determine the mole of CO₂</h3>

NaHCO₃ + HCl —> CO₂ + H₂O + NaCl

From the balanced equation above,

1 mole of NaHCO₃ reacted to produce 1 mole of CO₂.

Therefore,

0.0632 mole of NaHCO₃ will also react to produce 0.0632 mole of CO₂.

Thus, 0.0632 mole of CO₂ was obtained from the reaction

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8 0
2 years ago
What affects the amount of daylight a particular place experiences?
Allisa [31]

Answer:

A. Earth's rate of rotation and revolution

5 0
3 years ago
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If 5.37 grams of sucrose, c12h22o11, are dissolved in 21.2 grams of water, what will be the boiling point of the resulting solut
WARRIOR [948]

Answer:

c

Explanation:

3 0
2 years ago
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