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Mumz [18]
4 years ago
13

I’m struggling in dimensional analysis. I’m trying to convert 17.6 mm^2 to in^2. I understand first we know 1 in = 2.54 cm. Then

how do you convert from cm to mm.
Chemistry
1 answer:
Llana [10]4 years ago
6 0

Answer:

0.0272801

Explanation:

17.6 mm^{2} * \frac{1 cm^{2} }{10 mm^{2} } * \frac{1 in^{2} }{6.4516 cm^{2} } = 0.02728005 in^2. You have to square the value of 2.54 to convert cm to cm^2.

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Which value would be required to estimate the lattice energy for the hypothetical ionic compound MgH2?
Sonja [21]
D, the energy of formation is equal to the dissociation. so from magnesium ions and Hydrogen ions, when they form the lattice energy is equal to formation-dissociation, as they aren't going to dissociate (fixed in lattice) the formation should be the same as the the overall lattice energy. 
8 0
3 years ago
True or False
Grace [21]
The answer to this is true.
6 0
3 years ago
Given the balanced equation 2C4H10 + 13O2 → 8CO2 + 10H2O, how many moles of CO2 are produced when 14.9g of O2 are used?
Anna [14]

Answer: The number of moles of CO_2 produced are, 0.287 moles.

Explanation : Given,

Mass of O_2 = 14.9 g

Molar mass of O_2 = 32 g/mol

First we have to calculate the moles of O_2

\text{Moles of }O_2=\frac{\text{Given mass }O_2}{\text{Molar mass }O_2}

\text{Moles of }O_2=\frac{14.9g}{32g/mol}=0.466mol

Now we have to calculate the moles of CO_2

The balanced chemical equation is:

2C_4H_{10}+13O_2\rightarrow 10H_2O+8CO_2

From the reaction, we conclude that

As, 13 mole of O_2 react to give 8 moles of CO_2

So, 0.466 mole of O_2 react to give \frac{8}{13}\times 0.466=0.287 mole of CO_2

Therefore, the number of moles of CO_2 produced are, 0.287 moles.

3 0
3 years ago
Whats The amount of space an object takes up is known as the objects?
Ray Of Light [21]
The amount of space would be consider matter
7 0
3 years ago
How does the equilibrium change to counter the removal of A in this reaction?
sattari [20]

Answer : The correct option for blank 1 is, Shifts left.

The correct option for blank 2 is, Reverse.

Explanation :

According to the Le Chatelier's Principle, when the addition of the reactant in reaction system then the equilibrium will shift to the right (forward) direction of the reaction.

Or, if we remove the reactants from the reaction system then the equilibrium will be shifted to the left (backward) direction of the reaction. And simultaneously, there will be increase in the reverse reaction for the attainment of the equilibrium.


5 0
4 years ago
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