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Ahat [919]
2 years ago
7

Someone thought there was water in Beaker C. He drank some and quickly spat out.He said that it was salty. Explain why this happ

ened.
Chemistry
1 answer:
fomenos2 years ago
4 0

Answer:

He assumed wrongly

Explanation:

It happened this way because the person assumed wrongly.

Most other compounds have the same physical appearance as water especially when in liquid form.

  • This can be a very tricky one in the laboratory.
  • The sense of taste is not the best way to fathom what a particular compound is made up of.
  • This is the reason why this student or person faced this sort of problem.
  • Water has different properties that can be tested for using simple techniques in the laboratory.
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I need help please.​
murzikaleks [220]

Answer:

3

Explanation:

4 0
2 years ago
An unknown gas Q requires 2.67 times as long to effuse under the same conditions as the same amount of nitrogen gas. What is the
Misha Larkins [42]

Answer:

The correct answer is 199.66 grams per mole.

Explanation:

Based on law of effusion given by Graham, a gas rate of effusion is contrariwise proportionate to the square root of molecular mass, that is, rate of effusion of gas is inversely proportional to the square root of mass. Therefore,  

R1/R2 = √ M2/√ M1

Here rate is the rate of effusion of the gas expressed in terms of number of mole per uni time or volume, and M is the molecular mass of the gas.  

Rate Q/Rate N2 = √M of N2/ √M of Q

The molecular mass of N2 or nitrogen gas is 28 grams per mole and M of Q is molecular mass of Q and based on the question Q needs 2.67 times more to effuse in comparison to nitrogen gas, therefore, rate of Q = rate of N2/2.67

Now putting the values we get,  

rate of N2/2.67/rate of N2 = √28/ √M of Q

√M of Q = √ 28 × 2.67

M of Q = (√ 28 × 2.67)²

M of Q = 199.66 grams per mole

3 0
3 years ago
Andre is packing for a move to Kentucky. He needs to pack 20 small paperback books whose total mass is 5 kg and some pillows who
storchak [24]
The pillows because it is larger than paperback books, in this situation just think about which is larger, I pretty sure Andre is not going to hold the boxes in his hand. 
hope I helped
6 0
3 years ago
Gloria is writing the chemical formula for a compound using its chemical name. She has just identified the names of the elements
Dennis_Churaev [7]

<span>Gloria is writing the chemical formula for a compound using its chemical name. She has just identified the names of the elements in the compound. The tool that she will need to use next is a textbook to learn the IUPAC naming of compounds or a handbook of chemical compounds.</span>

4 0
2 years ago
Read 2 more answers
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SVETLANKA909090 [29]

Answer:

AS THE HYPOTHESIS MEANS THAT OUR THOUGHTS AND FINDINGS SO

PART B  .... RATTLESNAKES VENOM CAN BE USED AS TREATMENT

Explanation:

PLEASE MARK AS BRAINLIEST

8 0
2 years ago
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