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Rashid [163]
4 years ago
3

Why is crushability alone not enough to verify the identity of these materials?

Chemistry
1 answer:
sergiy2304 [10]4 years ago
4 0

Answer:same but answer

Explanation:yeah confusing

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The heat index temperature:___________ a. bines air pressure and temperature in a comfort index b. bines relative humidity and t
kvasek [131]

Answer:

bines relative humidity and temperature in a comfort index

Explanation:

The Heat Index temperature measures how hot it feels when humidity is factored with the air temperature.

It is important for the human body's comfort.

The human body feels warmer in humid conditions it begins to perspire or sweat to cool itself off when the body gets too hot.

The concept of the heat index was developed by George Winterling  in 1978.

The heat index temperature makes assumptions regarding the human body mass and height, clothing, amount of physical activity etc.

The heat index temperature <u>bines relative humidity and temperature in a comfort index.</u>

6 0
3 years ago
A chemistry student needs 60.0 ml of ethanolamine for an experiment. By consulting the CRC Handbook of Chemistry and Physics, th
BARSIC [14]

Answer:

The student should weigh out 61.2g of ethanolamine [6.12 * 10]

Explanation:

In this question, we are expected to calculate the mass of ethanolamine needed to make 60.0ml of it given that the density of the ethanolamine in question is 1.02g/cm^3

Mathematically, it has been shown that mass = density * volume

Hence, by multiplying the density by the volume, we get the mass.

Now, from the question we can see that we have the values for the density and the volume. We now need to get the mass.

Since cm^3 is same as ml, we need not perform any conversion.

Hence, the needed mass is:

60 * 1.02 = 61.2g

6 0
4 years ago
How did technology impact the development of the cell theory?
lidiya [134]
It helped be able to look more closely at the the cells
8 0
3 years ago
Aspirin, C9H8O4, has a molar mass of 180.2 g/mol. A tablet contains 325 mg(0.325 g) of pure aspirin. Show all work
dusya [7]
A.how many moles of aspirin are in one tablet
0.325 g ( 1 mol / 180.2 g ) = 1.80 x 10^-3 mol

B. How many moles of oxygen are in one tablet of aspirin
1.80 x 10^-3 mol C9H8O4 ( 4 mol O / 1 mol <span>C9H8O4) = 7.21 x 10^-3 mol O
</span> 
C. How many atoms of carbon are in one tablet of aspirin 
1.80 x 10^-3 mol C9H8O4 ( 9 mol C / 1 mol C9H8O4 ) ( 6.022 x 10^23 atoms C / 1 mol C ) = 9.76 x 10^21 atoms C

D. How many grams of oxygen in one tablet of aspirin
 7.21 x 10^-3 mol O ( 16 g / mol ) = 0.12 g O
7 0
3 years ago
What is your opinion about:
tatyana61 [14]

Opinion : I disagree recycling can help them, but it still will not clear the environment.

4 0
3 years ago
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