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Lyrx [107]
4 years ago
9

What is the atomic radius of a hydrogen atom

Chemistry
1 answer:
Alinara [238K]4 years ago
7 0

Answer: The atomic radius of a hydrogen atom is 742=37 pm 74 2 = 37 pm .

Explanation:

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If i have 4 moles of a gas ata pressure of 5.2 atm and a volume of 15 liters, what is the temperature?
kompoz [17]

Answer:

237.5 K.

Explanation:

  • We can use the general law of ideal gas: <em>PV = nRT. </em>

where, P is the pressure of the gas in atm (P = 5.2 atm).  

V is the volume of the gas in L (V = 15.0 L).  

n is the no. of moles of the gas in mol (n = 4.0 mol).

R is the general gas constant (R = 0.0821 L.atm/mol.K),  

T is the temperature of the gas in K (T = ??? K).

∴ T = PV/nR = (5.2 atm)(15.0 L)/(4.0 mol)(0.0821 L.atm/mol.K) = 237.5 K.

5 0
3 years ago
Given the values for C (2.5) and O (3.5), calculate the electronegativity difference in a carbon monoxide bond, CO
34kurt

Answer:

ΔEN CO   = 1.0

Explanation:

To calculate the electronegativity difference, we have to substract the element which has the highest EN to the other, that has a low value.

For this case EN from O - EN from C

Electronegativity is a property of the periodic table that increases diagonally, where Fr and Rb are the elements of less EN while F is the most electronegative element, with a value of 4. This is because F is an element with a high ionization energy and a negative electronic affinity.

ΔEN CO  = 3.5 - 2.5 = 1.0

Electronegativity (EN) describes the ability of an atom to compete for

electrons with other atoms to which it is attached.

7 0
4 years ago
What is changed when matter undergoes a physical change?
Furkat [3]
I think its the mass that changes but im not sure
3 0
3 years ago
What is conserved in physical changes
nataly862011 [7]

Answer:

energy or density

Explanation:

8 0
4 years ago
Read 2 more answers
Seven vans each hold 6 passengers. Each passenger is carrying 20 candies divided equally among 5 small boxes. How many candies a
alekssr [168]
The answer is the first choice, <u>840 candies</u>.
7 0
4 years ago
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