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Jobisdone [24]
3 years ago
14

Help please

Chemistry
2 answers:
Serga [27]3 years ago
8 0

Answer:

  • C. it is a strong acid since the blue litmus paper turns red and the pH is 1.7

Explanation:

As per table gastric juice has pH of 1.7 which is the strong acid. If you remember, 0-7 range determines acids and litmus paper confirms that by turning red.

So correct choice is C.

Vlad [161]3 years ago
5 0

Answer:

C because I took the test and got the answer correct

Explanation:

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I answered a question correctly and someone deleted my answer without giving me any explanation. I don't know why someone would
lina2011 [118]

Answer:

Same, my answer got deleted. Its a troll on here who wants to screw around with people.

5 0
3 years ago
How many liters of a 4.0 M CaCl2 solution would contain 2 moles of CaCl2?
nekit [7.7K]

Answer:

The answer to your question is 0.5 liters

Explanation:

Data

[CaCl₂] = 4.0 M

number of moles = 2

volume = ?

Process

To solve this problem use the formula of Molarity and solve it for volume, substitute the values and simplify.

-Formula

Molarity = moles / volume

-Solve for volume

Volume = moles / molarity

-Substitution

Volume = 2/4

-Simplification

Volume = 0.5 liters.

5 0
3 years ago
What is an indicator that a chemical change has occurred?
Aleks04 [339]

Answer:

That something has changed chemically

Explanation:

Uh...Google it

6 0
3 years ago
Read 2 more answers
What is the de broglie wavelength of a 0.17-kg hockey puck moving at 37 m/s ?
Stolb23 [73]
Im taking lambda as x (wavelength)

m = 0.17 kg

v=37m/s

h=6.62*10^-34m²kg/s

x= h/mv


x = 6.62 \times 10 ^{ - 34}  \div 0.17 \times 37
x =1.05 \times {10}^{ - 34}  m
5 0
3 years ago
What’s the symbol of the element that has 8 protons, 9 neutrons, and 8 electrons
Katena32 [7]

Answer:

oxygen

Explanation:

 The given isotope has 8 protons and 8 electrons, so the atomic number of the given isotope is 8, which is the atomic number of oxygen.

7 0
3 years ago
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