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
Svetlanka [38]
3 years ago
12

Matter that has a uniform and defined composition is called a​

Chemistry
1 answer:
Fittoniya [83]3 years ago
6 0
Answer - A substance is matter that has a uniform and definite composition. All samples of substances, sometimes called pure substances, have identical properties.
You might be interested in
The crust and upper mantle make up Earth's ____.
Alekssandra [29.7K]

Answer:

a. the lithosphere

Explanation:

google

7 0
2 years ago
10. Liquid changing to gas only at the surface is called
mina [271]

Answer:

Evaporation

Explanation:

Though it doesn't require high temperatures to do so

3 0
3 years ago
Given:
bulgar [2K]

Answer:

The combustion of 59.7 grams of methane releases 3320.81 kilojoules of energy

Explanation:

Given;

CH₄ + 2O₂ → CO₂ + 2H₂O, ΔH = -890 kJ/mol

From the combustion reaction above, it can be observed that;

1 mole of methane (CH₄) released 890 kilojoules of energy.

Now, we convert 59.7 grams of methane to moles

CH₄ = 12 + (1x4) = 16 g/mol

59.7 g of CH₄ = \frac{59.7}{16} = 3.73125 \ moles

1 mole of methane (CH₄) released 890 kilojoules of energy

3.73125 moles of methane (CH₄) will release ?

= 3.73125 moles x  -890 kJ/mol

= -3320.81 kJ

Therefore, the combustion of 59.7 grams of methane releases 3320.81 kilojoules of energy

5 0
3 years ago
Would gallium, atomic #31, likely form a action or an anion?
Stolb23 [73]
Assuming you meant cation and not action, gallium would most likely form a cation because it is a group A element
4 0
3 years ago
How do you describe the milk?
Lady bird [3.3K]

Answer:

emulsion

Explanation:

An emulsion is a mixture of two or more liquids that are normally immiscible. Emulsions are part of a more general class of two-phase systems of matter called colloids.

3 0
3 years ago
Other questions:
  • How does the ph of an acid compared to the ph of a base?
    14·1 answer
  • Why does algae grow in a lake
    6·2 answers
  • What is the wavelength of radiation with a frequency of 3.68 X 10^12 /s?
    5·1 answer
  • The half-life of plutonium-239 is 24300. If a nuclear bomb released 8kg of this isotope, how many years would pass before the am
    10·1 answer
  • In the periodic table of elements,all <br>the elements in group 16 have the same number of what
    9·2 answers
  • Which is an advantage of selling plant fertilizer as a powder rather than as a liquid?
    9·1 answer
  • Suppose that we combined 75 g of magnesium with 45 g of nitrogen and heat them up. Predict the product of
    8·1 answer
  • 2. Have someone hold the mirror for you, slowly move at least 3 m away from the it.
    8·1 answer
  • What’s the difference between attractive forces and covalent bonds
    7·2 answers
  • A solution with a pH = 13 has approximately how many moles of OH– ions per liter?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!