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Alex_Xolod [135]
2 years ago
7

What is the definition of nucleus?

Chemistry
2 answers:
Serjik [45]2 years ago
7 0

Answer:

The central and most important part of an object, movement, or group, forming the basis for its activity and growth.

Explanation:

hope this helps!

guajiro [1.7K]2 years ago
3 0

Answer:

atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom. definition for science.

Explanation:

important part of an object, movement, or group

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In what state is the carbon dioxide being used by the researchers and why?
Artyom0805 [142]
Carbon dioxide and what state it doesn’t make no sense
8 0
3 years ago
if I have 22.1 grams of CO2 gas at -188 degrees Celsius and 165 ml what is the pressure of the gas in kPa​
Harman [31]

Answer:

P = 2.145kPa

Explanation:

Mass = 22.1g

Molar mass of CO2 = 44g/mol

Vol = 165mL = 0.165L

T = -188°C = (-188 + 273.15)K = 85.15K

R = 8.314J/mol.K

From ideal gas equation,

PV = nRT

P = pressure of the ideal gas

V = volume the gas occupies

n = number of moles if the gas

R = ideal gas constant

T = temperature of the gas

n = number of moles

n = mass / molar mass

n = 22.1 / 44 = 0.50moles

PV = nRT

P = nRT/ V

P = (0.5 × 8.314 × 85.15) / 0.165

P = 2145.26Pa = 2.145kPa

Pressure of the gas is 2.145kPa

6 0
3 years ago
What causes atoms to form covalent bonds?
tino4ka555 [31]

Sharing of valence electrons.

Explanation:

In a covalent bonds, there is sharing of the valence electrons used in bonding between the two combining species.

The atoms taking part do not have a wide electronegativity difference between them and so they share the valence electrons to complete their octet and ensure their stability.

  • For the formation of this bond type, each of the atom requires a odd or unpaired electrons.
  • Covalent bonds are formed between atoms having zero or very small electronegativity difference.

Learn more:

Covalent bonds brainly.com/question/10903097

#learnwithBrainly

6 0
3 years ago
When electrons are added to the outer most shell of a carbon atom what does it form
bagirrra123 [75]
When electrons are added to the outermost shell of a carbon atom, it forms an anion.
3 0
3 years ago
Match each decimal number to the correct scientific notation.
Effectus [21]

3.07 × 10^4=30,700

3.07 × 10^-4=0.000307

3.07 × 10^-6=0.00000307

3.07 × 10^6=3,070,000



5 0
3 years ago
Read 2 more answers
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