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Juliette [100K]
3 years ago
8

Which is the best reason for choosing the beaker for heating the solution? The beaker is the only container that can withstand h

igh temperatures. The beaker's wide mouth makes it easier to hold a capillary tube with tongs. The beaker will not tip over when placed on the hot plate. The beaker is unbreakable.
Chemistry
2 answers:
irina [24]3 years ago
7 0

Answer:

C. The beaker will not tip over when placed on the hot plate.

Explanation:

Got it right on edge 2020

lyudmila [28]3 years ago
6 0

Answer: The beaker will not tip over when placed on the hot plate


Justification:


Since beakers have flat surface bottoms (usually and this is the condition to use them for this particular application) they can be placed safely on the hot plate without the risk that the they tip over.


Beakers are wide mouth cylindrical vessels used in laboratories to store, mix and heat liquids. Most are made of glass, in which case the glass is resistant to the flame and does not break when exposed to high temperatures or when is heated by direct contact on a hot plate.


So, their safe shape (flat bottom) that makes them stable, along with their ability to withstand high temperatures, make them suitable to heat solutions in laboratories.



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Express 749 000 000 in scientific notation,
Dima020 [189]

Answer:

7.49 × 108

Explanation:

Scientific notation is a way to express numbers in a form that makes numbers that are too small or too large more convenient to write. It is commonly used in mathematics, engineering, and science, as it can help simplify arithmetic operations. In scientific notation, numbers are written as a base, b, referred to as the significant, multiplied by 10 raised to an integer exponent, n, which is referred to as the order of magnitude:

8 0
3 years ago
In the reaction H2SO4 + 2 NaOH -> Na2SO4 + 2H2O, an equivalence point occurs when 29.43 mL of 0.1973 M NaOH is added to a 32.
Tamiku [17]
            moles NaOH = c · V = 0.1973 mmol/mL · 29.43 mL = 5.806539 mmol
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Hence
            [H2SO4]= n/V = 2.9032695 mmol / 32.42 mL = 0.08955 M
The answer to this question is  [H2SO4] = 0.08955 M

6 0
2 years ago
Which of these expressions are correct variations of the Combined Gas Law?
mafiozo [28]

Answer:

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Explanation:

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From the ideal gas law we assume that n = 1;

So;

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                  \frac{P_{1}V_{1}  }{T_{1} }  = \frac{P_{2}V_{2}  }{T_{2} }

   If we cross multiply;

                P₁V₁T₂   = P₂V₂T₁

  So;

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Also;

         V₂  = V_{1} \frac{P_{1} T_{2} }{P_{2} T_{1} }

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3 0
3 years ago
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kondor19780726 [428]

Answer:

The first one

Explanation:

Elements are as simple as it gets

6 0
3 years ago
which of the following pairs of elements could react to form an ionic compound? A. potassium and calcium B. sulfur and oxygen C.
Grace [21]
The correct option is FLUORINE AND COPPER.
An ionic compound is usually formed by the combination of a metal and a non metal, the metal usually act as an electron donor while the non metal act as an electron acceptor. Thus, in ionic compounds, there is total transfer of electrons from the metal to the non metal. In the question given here, copper is the metal while the fluorine is the non metal.<span />
4 0
2 years ago
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