1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Helen [10]
2 years ago
6

What is atom?????????????

Chemistry
2 answers:
kiruha [24]2 years ago
6 0

Answer:

An atom is a particle of matter that uniquely defines achemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. ... The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons. A proton is positively charged.

Katena32 [7]2 years ago
4 0

Answer:

An atom is a particle of matter that uniquely defines achemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. ... The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons. A proton is positively charged.

You might be interested in
Which of the following do plants gain from sunlight?
solmaris [256]

They gain energy , it also allows plants to create organic molecules that they use as fuel.

4 0
3 years ago
Read 2 more answers
Which of these things would you expect to have cells with both mitochondria
Allushta [10]

Answer:

D. Grass​

Explanation:

Every living organism must contain one or more cells to be considered "living". Each cell, however, contains certain structures that perform specific roles called ORGANELLES. These organelles are of different types and hence, perform different tasks. For example, mitochondria is the power house of a cell i.e. site of energy production, and hence, is found in every eukaryotic cell.

On the other hand, chloroplast is an organelle designed to perform photosynthesis, which only occurs in plant cells. Since only plant cells can undergo photosynthesis, only plant cells can contain chloroplast. Hence, according to this question, GRASS as a type of plant is an organism that will contain both mitochondria and chloroplast in its cells.

6 0
3 years ago
Calculate the wavelength of a body of mass 96.0 mg and moving with a velocity of 30.0 m/s. The value of Planck’s constant is 6.6
Katen [24]

Answer:

vcvvvvvvvvvvvvvv

Explanation:

6 0
3 years ago
The mass fractions of a mixture of gases are 15 percent nitrogen, 5 percent helium, 60 percent methane, and 20 percent ethane wi
Setler79 [48]

Answer:

Explanation:

mass fraction N₂ : He : CH₄ : C₂H₆ : : 15 : 5 : 60 : 20

mole fraction  N₂ : He : CH₄ : C₂H₆ : : 15/28 : 5/4 : 60/16 : 20/30

mole fraction  N₂ : He : CH₄ : C₂H₆ : : .5357  : 1.25 : 3.75 : .67

Total mole fractions = .5357 + 1.25 + 3.75 + 0.67 = 6.2057

mole fraction of N₂ =  .5357 / 6.2057 = .0877

mole fraction of He = 1.25 / 6.2057 = .20

mole fraction of CH₄ = 3.75 / 6.2057 = .6043

mole fraction of C₂H₆ = .67 / 6.2057 = .108

Partial pressure = total pressure x mole fraction

Partial pressure of N₂ = 1200 kPa  x .0877 = 105.24 kPa

Partial pressure of He = 1200 kPa  x .20  = 240 kPa

Partial pressure of CH₄ = 1200 kPa  x  .6043  = 725.16 kPa

Partial pressure of C₂H₆ = 1200 kPa  x .108    = 129.6 kPa

6 0
3 years ago
An indicator of average kinetic energy is
Paha777 [63]

Answer:

PRESSURE is right answer .

Explanation:

4 0
3 years ago
Other questions:
  • Which diatomic molecule is formed when the two atoms share six electrons
    5·2 answers
  • If you remove one neutron from helium, the remainder is what element?
    6·1 answer
  • Which of the following does not indicate a chemical change?
    5·1 answer
  • How many grams of iron (density = 7.87 g/mL ) would occupy the same volume as 96.4 g of aluminum (density = 2.70 g/mL)?
    7·2 answers
  • Chlorine can form a maximum of bonds
    11·1 answer
  • What is the percentage of hydrogen in c2h4
    12·1 answer
  • What must be balanced in order to have a balanced chemical equation?
    14·1 answer
  • Isotopes called what are used to diagnose disease and to study environmental conditions
    13·1 answer
  • Question 9
    14·1 answer
  • Please help me with this <br> Beer Lambert Law Explanation
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!