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IRISSAK [1]
4 years ago
5

Why does it make sense that if an atom loses electrons, it is left with a positive charge?

Chemistry
1 answer:
rosijanka [135]4 years ago
5 0
Electrons are negatively charged. If you remove negative particles, the leftover atom is positive and positive is really just another word for "less negative".
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The Gibbs free energy change of a reaction can be calculated using the equation ΔG = ΔH – TΔS. A biochemical reaction that can p
scoundrel [369]

Answer:

the correct option is c

Explanation:

Biological chemical reactions that provide energy are considered spontaneous, therefore the deltaG value would be negative.

5 0
4 years ago
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blsea [12.9K]
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3 years ago
How many moles of gas would you have if you have a volume of 38.0 L under a pressure of 1430 mmHg at standard temperature
seraphim [82]

Answer: There are 3.2 moles of gas if you have a volume of 38.0 L under a pressure of 1430 mmHg at standard temperature.

Explanation:

Given: Volume = 38.0 L

Pressure = 1430 mm Hg (1 mm Hg = 0.00131579 atm) = 1.9 atm

Temperature = 273.15 K

Using ideal gas equation, the moles of gas will be calculated as follows.

PV = nRT\\

where,

P = pressure

V = volume

n = no. of moles

R = gas constant = 0.0821 L atm/mol K

T =temperature

Substitute the values into above formula as follows.

PV = nRT\\1.9 atm \times 38.0 L = n \times 0.0821 L atm/mol K \times 273.15 K\\n = \frac{1.9 atm \times 38.0 L}{0.0821 L atm/mol K \times 273.15 K}\\= 3.2 mol

Thus, we can conclude that there are 3.2 moles of gas if you have a volume of 38.0 L under a pressure of 1430 mmHg at standard temperature.

5 0
3 years ago
How many atoms (mol) is in 10g of sodium, sodium chloride and Iron chloride?
SashulF [63]

Answer:

See explanation

Explanation:

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Number of moles = 10 g/126.751 g/mol = 0.0789 moles

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Molar mass of Na = 23 g/mol

Number of moles = 10g/23 g/mol = 0.43 moles

Number of atoms = 0.43 moles *  6.02 * 10^23 atoms = 2.59 * 10^ 23 atoms

8 0
3 years ago
What particles are affecting by strong nuclear forces?
WINSTONCH [101]

Answer:

proton and neutron

I hope this helps :)

Explanation:

7 0
3 years ago
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