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Feliz [49]
3 years ago
6

What is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?

Chemistry
2 answers:
shutvik [7]3 years ago
7 0
D = m / V

d = 5.0 / 45.0

d = 0.111 g/cm³
hjlf3 years ago
3 0

Answer : The density of the object will be, 0.111g/cm^3

Explanation :

Density : It is defined as the mass contained per unit volume.

Formula used for density :

Density=\frac{Mass}{Volume}

Given :

Mass of an object = 5.0 grams

Volume = 45.0cm^3

Now put all the given values in the above formula, we get the density of an object.

Density=\frac{5.0g}{45.0cm^3}=0.111g/cm^3

Therefore, the density of the object will be, 0.111g/cm^3

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If an element gives away an electron, will it form a positive ion or a negative<br> ion?
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posotive

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8 0
3 years ago
A sample with a molar mass of 34.00 g/mol is found to consist of 5.9783% Hydrogen and 94.0217% oxygen. Find it’s molecular formu
kozerog [31]

Answer:

The formula is H202 (hydrogen peroxide, known as hydrogen peroxide)

Explanation:

100%----34g

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5 0
3 years ago
What is Keq for the reaction N₂ + 3H2 = 2NH3 if the equilibrium
hram777 [196]

The Keq for the reaction N₂ + 3H2 = 2NH3 if the equilibrium concentrations are Keq = 1.5. The correct option is D.

<h3>What is Keq?</h3>

Keq is the ratio of the concentration of reactant to the concentration of the product.

The balanced equation is

N₂ + 3H₂  = 2NH₃

The equilibrium constant is \rm \dfrac{[NH_3]^2}{[N_2]\; [H_2]^3}

The given concentrations of the compounds have been:

Ammonia = 3 M

Nitrogen = 1 M

Hydrogen = 2 M

\rm \dfrac{9}{1\times 8} = 1.5

Thus, the correct option is D. Keq = 1.5.

Learn more about Keq

brainly.com/question/24059926

#SPJ1

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What would happen if hydrogen and nitrogen combine?
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<span>At room temperature and atmospheric pressure, nothing happens when the two gasses are mixed. However, at high temperature and pressure (450C, 200atm), in the presence of an iron oxide catalyst, the production of ammonia is thermodynamically advantageous.</span>
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