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vodomira [7]
4 years ago
12

Abbreviation for mole

Chemistry
1 answer:
Sedbober [7]4 years ago
6 0

Answer:

Maybe mol

Explanation:

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HELPPPP !!! oxygen calculation to find neutrons
Tcecarenko [31]

Answer:

Oxygen has 8 neutrons

Explanation:

We know that cause the atomic number says how many protons does the element has, so in this case is eight, and in the mass number, we have the number of protons+neutrons, in this case is 16. Then, as we know that oxygen has eight protons with the atomic number, we would do 16-8 protons= 8 neutrons.

Check: Atomic number is 16= 8 protons + 8 neutrons

6 0
3 years ago
At what celsius temperature does 0.750mol of an ideal gas occupy a volume of 35.9L at 114kPa
pashok25 [27]

Answer:

378.25°C

Explanation:

Given data:

Number of moles of gas = 0.750 mol

Volume of gas = 35.9 L

Pressure of gas = 114 KPa (114/101 = 1.125 atm)

Temperature of gas = ?

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

now we will put the values.

T = PV/nR

T = 1.125 atm × 35.9 L /0.750 mol  × 0.0821 atm.L/ mol.K

T = 40.3875/0.062/K

T = 651.4 K

Kelvin to °C:

651.4 K - 273.15 = 378.25°C

8 0
4 years ago
The chemical name for the compound formula NaCl is?
Mandarinka [93]

Answer:

The chemical name for the compound formula NaCl is sodium chloride.

7 0
4 years ago
Read 2 more answers
Why does sodium have a lower melting point then magnesium
Lady bird [3.3K]

Answer:

Number of delocalized electrons

Explanation:

Magnesium has more delocalized electrons compared to sodium and this accounts for the higher melting point.

  • When magnesium atoms comes together to form a metallic bonds, they have more network of delocalized electrons.
  • There is more pull for the localized electrons due to the nuclear charge on the nucleus.
  • This strong intermolecular metallic bond increases the melting point of magnesium.
3 0
3 years ago
What are the most common symptoms of acid poisoning
arlik [135]

Answer:

When swallowed, the signs and symptoms may include:

Severe burning and associated pain in the mouth, throat, and food-pipe

Drooling from the mouth

Loss of vision; unable to speak

Inflammation of the throat may cause respiratory difficulties

Sudden reduction in blood pressure (hypotension)

Vomiting blood

On skin contact, the signs and symptoms may include:

Severe skin and tissue burns associated with pain

Severe eye burns associated with pain; loss of vision

When inhaled, the signs and symptoms may include:

Coughing (including coughing-up blood), choking

Heaviness in the chest; chest pain

Bluish discoloration of lips and beneath fingernails

Respiratory difficulties

Reduced blood pressure (hypotension)

Headache and weakness

Increased heart-rate

Collapse

Explanation:

6 0
3 years ago
Read 2 more answers
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