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sweet-ann [11.9K]
3 years ago
15

Pamela wants to learn more about the career preferences of students in her school. She interviews a number of students from the

advanced science classes. Why is this sample likely to be biased? Advanced science students may not have clear career preferences. The numbers of boys and girls in the advanced science classes are not equal. Advanced science students are not representative of all the students in the school. It is too early for students to have career preferences while still in school. NextReset
Chemistry
1 answer:
Viktor [21]3 years ago
4 0
It is too early for students to have career preferences while still in school

(i believe) <span />
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Is there a way to dissolve more sugar into a solution that it should hold at that temperature? Explain how this is done and what
Darya [45]

The answer is: supersaturated solution.

A supersaturated solution contains more of the dissolved substance than could be dissolved by the solvent under normal circumstances.

A way to dissolve more sugar into a solution is heating a solution.

The more heat is added to a system, the more soluble a substance (in this example sugar) becomes.

The solution will become supersaturated if this solution is suddenly cooled at a rate faster than the rate of precipitation.

6 0
3 years ago
Which of the following is a measurement of an object's mass?
Brilliant_brown [7]

Answer:

10 Kilograms

Explanation:

"millimetres" is a unit of measurement and is used for measuring distances.

"newton" is a unit of weight and is used to represent the weight of an object

:kilograms" is the one used for measuring mass

5 0
3 years ago
A sample of chlorine gas occupies a volume of 707 ml at 2.90 atm. What is the new pressure in torr if the volume is compressed t
dolphi86 [110]

Answer:

The new pressure is 3850 torr.  

Explanation:

The relation between volume and pressure is inverse as per Boyle's law. Its mathematical form is given by :

P_1V_1=P_2V_2

Here,

P_1=2.9\ atm

V_1=707\ mL

V_2=0.533\ L

Let P_2 is the new pressure. So using Boyle's law we get :

P_2=\dfrac{P_1V_1}{V_2}\\\\P_2=\dfrac{2.9\times 707}{0.533}\\\\P_2=3846.71\ \text{torr}

or

P_2=3850\ \text{torr}

So, the new pressure is 3850 torr.  

3 0
3 years ago
How are period and frequency related to each other?
frosja888 [35]

Answer:

D. period is reciprocal of frequency.

Explanation:

4 0
3 years ago
Read 2 more answers
Helpp chemistry ..........
ValentinkaMS [17]
Half-life is the time it takes for the radioactive material's mass to decrease by half.

So, half of 96 is 48
half of 48 is 24
half of 24 is 12
half of 12 is 6

96->48->24->12->6

You count how many arrows (->) there is.
Which is 4

Then you use the 12 minutes the question gave you to do:
12 divided by 4
= 3

So, one half-life (Or the time it takes for the radioactive material's mass to decrease in half) is 3 minutes

and every 3 minutes it will decrease by half.
3 0
3 years ago
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