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bixtya [17]
3 years ago
5

How many moles are in 3.46 g of chromium?

Chemistry
1 answer:
Bezzdna [24]3 years ago
6 0

Answer:

0.06654345229738384 moles of chromium.

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Ionization energy and electronegativity show similar trends in the periodic table. Describe these trends. What is the significan
marin [14]
Electronegativity measures how much an atom likes to pull electrons away from another one. Ionization energy measures how much an atom doesn't want to lose electrons. As an atom that wants to gain electrons will clearly not want to lose electrons, these trends are basically identical.
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3 years ago
Which element would have properties most similar to those of
zysi [14]

Answer:

Rb

Explanation:

This is because they are in the same group which means they share similar properties.

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3 years ago
How many atoms are in one molecule of baking soda, NaHCO3?
vladimir2022 [97]

Answer: 6 atoms in total

Explanation:

It has one sodium atom, one hydrogen atom, one carbon atom, and three oxygen atoms.

6 0
3 years ago
Click on the molecules that represent transpiration.
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Transpiration is the progression of <em>water </em>inside a plant! So, the molecule representing transpiration is going to be good ol' H2O! =)
8 0
3 years ago
The following reaction plays a key role in the destruction of ozone In the atmosphere:
lys-0071 [83]

Answer:

19.91 J/K

Explanation:

The entropy is a measure of the randomness of the system, and it intends to increase in nature, thus for a spontaneous reaction ΔS > 0.

The entropy variation can be found by:

ΔS = ∑n*S° products - ∑n*S° reactants

Where n is the coefficient of the substance. The value of S° (standard molar entropy) can be found at a thermodynamic table.

S°, Cl(g) = 165.20 J/mol.K

S°, O3(g) = 238.93 J/mol.K

S°, O2(g) = 205.138 J/mol.K

So:

ΔS = (1*205.138 + 1*218.9) - (1*165.20 + 1*238.93)

ΔS = 19.91 J/K

6 0
3 years ago
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