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Ahat [919]
3 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:
fomenos3 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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Air contains nitrogen, oxygen, argon, and trace gases. Ifthe partial pressure of nitrogen is 592 mm Hg, oxygen is160 mm Hg, argo
Katena32 [7]

Answer:

760 mmHg

Explanation:

Step 1: Given data

  • Partial pressure of nitrogen (pN₂): 592 mmHg
  • Partial pressure of oxygen (pO₂): 160 mmHg
  • Partial pressure of argon (pAr): 7 mmHg
  • Partial pressure of the trace gas (pt): 1 mmHg

Step 2: Calculate the atmospheric pressure

Since air is a gaseous mixture, the atmospheric pressure is equal to the sum of the gases that compose it.

P = pN₂ + pO₂ + pAr + pt = 592 mmHg + 160 mmHg + 7 mmHg + 1 mmHg = 760 mmHg

6 0
3 years ago
What is the physical state of the smallest alkanes at room temperature?
dem82 [27]

They are gases at room temperature

Hope this helps:)

8 0
3 years ago
When Kristen was five, she became sick with chickenpox and then recovered. What claim explains why Kristen is unlikely to get ch
VLD [36.1K]

Answer:

the answer is A!

Mark as brainless

5 0
3 years ago
Read 2 more answers
2c2h6 + 7o2 = 4co2 + 6h2o <br> what mass of co2 will be produced from the reaction of 37.5 g c2h6
ivanzaharov [21]

Answer:

use n=m/M (moles=mass/molar mass) to find out how many moles of C2H6 there are in 60g

Explanation:

8 0
3 years ago
What mass of zinc is needed to react with 23.1g of phosphoric acid according to the following equation?
Hunter-Best [27]

23.01 g of zinc (Zn)

Explanation:

We have the following chemical reaction:

3 Zn + 2 H₃PO₄ = 3 H₂ + Zn₃(PO₄)₂

number of moles = mass / molar weight

number of moles of phosphoric acid = 23.1 / 98 = 0.236 moles

Taking in account the chemical reaction, we devise the following reasoning:

if           2 moles of H₃PO₄ are reacting with 3 moles of Zn

then      0.236 moles of H₃PO₄ are reacting with X moles of Zn

X = (0.236 × 3) / 2 = 0.354 moles of Zn

mass = number of moles × molar weight

mass of Zn = 0.354 × 65 = 23.01 g

Learn more about:

number of moles

brainly.com/question/13911775

#learnwithBrainly

5 0
3 years ago
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