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Klio2033 [76]
3 years ago
10

The structure of carbonic acid, an important component of ocean chemistry, is depicted below. What type of model best describes

this figure?
A conceptual model

A mathematical model

A physical model

A theoretical model

Chemistry
2 answers:
stepladder [879]3 years ago
7 0

Answer:

This is a Conceptual Model

Explanation:

Conceptual models are ideas that may be represented in a variety of ways, such as in writing, sketches, or drawings. A conceptual model actively describes some aspect of the system being studied in order to further explain it or communicate information. This is a diagram which is a conceptual model.

A physical model would be a globe for example.

BabaBlast [244]3 years ago
4 0

Answer: Option (c) is the correct answer.

Explanation:

A physical model is defined as a model which represents how atoms are bonded together and structure of a molecule.

Physical model shows the three dimensional structure of a molecule. Physical models helps to easily understand and visualize the configuration, single bonds, double bonds and total atoms within a molecule.

Thus, we can conclude that given structure of carbonic acid best describes a physical model.

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Discuss the different observations that you would record during an investigation into the energy transformations of a lamp that
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2. 1.5 moles of AgNO3 reacts with 0.5 mole of Mg3P2. Calculate the moles of excess
kicyunya [14]

Answer:

No of Moles in excess at the end of the reaction  is 0.25 moles

Explanation:

AgNO3  +   Mg3P2  → Ag3P + Mg(NO3)2

Balancing the equation we get

6AgNO3  +   Mg3P2  → 2Ag3P + 3Mg(NO3)2

6 moles of AgNO3 needs 1 mole of Mg3P2

using unitary method

AgNO3 = \frac{1}{6}*Mg3P2

1.5 AgNO3 = \frac{1}{6}*1.5

                  = 1/4 = 0.25moles of Mg3P2

So 1.5 Moles of AgNO3 requires 0.25Mg3P2 for complete reaction but we have 0.5Moles of Mg3P2 available Therefore Mg3P2 is in excess

No of Moles in excess at the end of the reaction = 0.5 - 0.25 = 0.25moles

5 0
3 years ago
Name two nineteenth century scientists—one who developed the laboratory burner
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Answer:

1. Robert Bunsen hence being called the bunsen burner. 2. William Kirchhoff

Explanation:

4 0
4 years ago
Plz help, I will give brainliest.
baherus [9]

Answer: The value of K_c is 2

Explanation:

Moles of  N_2O_4 = 1.0 mole  

Volume of solution = 1.00 L

Initial concentration of N_2O_4 = \frac{1.0mol}{1.00L}=1.0M

Equilibrium concentration of NO_2 = \frac{1.0mol}{1.00L}=1.0M  

The given balanced equilibrium reaction is,

                            N_2O_4(g)\rightleftharpoons 2NO_2(g)

Initial conc.          1.0 M            0 M

At eqm. conc.     (1.0-x) M      (2x) M

The expression for equilibrium constant for this reaction will be,

K_c=\frac{[NO_2]^2}{[N_2O_4]}

Given : 2x = 1.0

x= 0.5

Now put all the given values in this expression, we get :

K_c=\frac{(1.0)^2}{(1.0-0.5)}

K_c=2

Thus the value of K_c is 2

4 0
3 years ago
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