The smallest particle of an element that retains the chemical identity of that element is a/an A. atom.
B. compound.
C. molecule.
D. mixture.
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1.0 M
1.5 M
2.0 M
Answers
Molarity = 2.0 moles / 2.0 L
Molarity = 1.0 M
Answer:
1.0 M
Explanation:
Hello,
Molarity is a unit of concentration accounting for the amount of the moles of a solute per liter of solution as shown below:
In such a way, given the information on the statement, the resulting molarity turns out into:
Do not forget that mol per liters means molar units (M) as well.
Best regards.
b. When multiplying, the answer is determined by the number of significant figures
c. When adding, the answer is determined by the number of decimal places
d. When dividing, the answer is determined by the number of decimal places
e. The number 50,004 has five significant figures
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b. churches to draw in new patrons who want to view its beauty from inside.
c. reflecting and absorbing light, as well as displaying colorful images.
d. creating mirrored images of light and colors on the surrounding walls of a religious structure.
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Stained glass can be useful for churches to draw in new patrons who want to view its beauty from inside.
What is stained glass?
Stained glass is defined as a glass material which is made colored by means of adding metallic salts during the manufacturing process which imparts color to the glass.
These are used in many decorative purposes like decorating windows . The colors are imparted to the glass by mixing metal oxides into the colorless glass in its melted state.Sometimes fusion of a colored glass with a plain glass to make a stained glass is also used.
Stained glass is also prepared by glass paint where in streaks are introduced in glass by means of light firing in a furnace or a kiln.Silver stain is a range of compounds where in silver compound are mixed with binding substances and then applied to surface of glass,which are then fired in a furnace or in a kiln.
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the frequency in Hertz
the Energy in Joules
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Which letter (a-f) represents potential energy (ΔH) of the reactants?
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Answer:
1) Which letter (a–f) represents potential energy (ΔH) of the products?
- (e)
2) Which letter (a-f) represents potential energy (ΔH) of the activated complex?
- (c)
3) Which letter (a-f) represents potential energy (ΔH) of the reactants?
- (a)
Explanation:
The graph ploted represents the changes in the chemical potential (stored) energy for the reaction X + Y → Z as long as it evolves from reactants to products.
The left side of the graph shows the potential energy of the reactants, X and Y, when the reaction has not yet occurred.
Thus, the letter (a) is the potential energy of the reactants.
Moving from left to right you see that the potential energy increases, until a maximum. The maximum is when the reactants (X and y) have reacted up to an intermediate stage, in which there exists a transition state featured by an activated complex whose structure is half-way between the reactants and the products.
Thus, the letter (c) represents the potential energy of the activated complex.
At the far right of the graph, the reaction has gone to completion, the activated complex ends the transition state and the final products are formed. Thus, the letter (e) represents the potential energy of the products (Z).
All those energies are measured with respect to the same base line (the x-axis).
The attached graph has some labels added to help to identify the 3 stages: reactants, activated complex, and product.
Final answer:
Potential energy of products, reactants and activated complex in an energy profile diagram are displayed right end, left end and at the highest point of the diagram, respectively. However, the corresponding letters (a-f) would depend on the specific diagram.
Explanation:
In general, when you look at an energy profile diagram, the potential energy (ΔH) of the products is usually represented by the energy level of the products on the right side end of the diagram, which could be any of the letters a-f but depends on the specific diagram given. Similarly, potential energy (ΔH) of the reactants can be represented by the energy level of the reactants on the left end of the diagram. The potential energy (ΔH) of the activated complex, also known as the transition state, is usually the highest point on the diagram, indicating the highest energy level.
It's important to keep in mind that these are general guidelines for interpreting an energy profile diagram. The actual answer to your question (potential energy, activated complex, and reactants would depend on the specific diagram you're looking at.
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-phosphorus
-silicon
-calcium
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Answer: Option (b) is the correct answer.
Explanation:
Insulator are the substances which do not conduct electricity. It is known that metals are good conductors of electricity. Whereas non-metals do not conduct electricity.
Out of the given options, silver, and calcium is a metal that means they are good conductors of electricity and are not insulators.
On the other hand, silicon is a metalloid, that is, it shows properties of both metals and non-metals. Hence, it will also show conductivity.
Phosphorus is a non-metal and therefore, it does not conduct electricity. As a result, out f the given options it will act as the best insulator.