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Arlecino [84]
3 years ago
10

[OU.04] An astronomer has proposed a new theory about the evolution of the universe. Which of these would prevent the proposed t

heory from being discarded? (2 points) discussion about the theory on television explanation of the theory by some students publication of the theory in a science magazine acceptance of the theory by a majority of scientists
Chemistry
2 answers:
koban [17]3 years ago
6 0

Answer:

Acceptance of the theory by a majority of scientists.

Explanation:

A proposed theory could be rejected when it is tested and does not provide the same results by different scientists. If same evidence is gathered by majority of the scientists, then it is accepted. A new theory is accepted when it gives the same results on multiple testing.

Oduvanchick [21]3 years ago
5 0
Acceptance of the theory by a majority of scientists
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What are molecules, and how are the properties of molecules different from the atoms they come from? Give an example.
goldenfox [79]

Molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.

While Atoms are single neutral particles,

Molecules are neutral particles made of two or more atoms bonded together.

Exaplmes for molecules

H2O (water)

N2 (nitrogen)

O3 (ozone)

CaO (calcium oxide)

C6H12O6 (glucose, a type of sugar)

NaCl (table salt

And examples for atoms

Neon (Ne)

Hydrogen (H)

Argon (Ar)

Iron (Fe)

Calcium (Ca)

Deuterium, an isotope of hydrogen that has one proton and one neutron.

Plutonium (Pu)

F-, a fluorine anion.

3 0
3 years ago
A solution of starch at room temperature does not readily decompose to form a solution of simple sugars because
Basile [38]

Explanation:

The starch requires a temperature higher than the room temperature (arround 60 °C) to decompose to form simple sugars. This is because the energy required to break the chemical bonds. Also, it may need the action of some specific enzymes (alpha and beta amilase) to break those bonds.

6 0
3 years ago
If 2.1 moles of NaCl is dissolved in a solution with a total volume of 7.3 liters, what is the molarity of the solution? Round t
Arturiano [62]

Answer:

The molarity of the solution is 0.29 \frac{moles}{liter}

Explanation:

Molarity, or molar concentration, is a measure of the concentration of a solute in a solution, be it some molecular, ionic or atomic species. It is defined as the number of moles of solute that are dissolved in a given volume.

Molarity is calculated as the quotient between the number of moles of solutes and the volume of the solution:

Molarity=\frac{number of moles of solute}{volume}

Molarity is expressed in units \frac{moles}{liter}.

In this case:

  • number of moles of solute= 2.1 moles
  • volume= 7.3 liters

Replacing:

Molarity=\frac{2.1 moles}{7.3 liters}

Molarity= 0.29 \frac{moles}{liter}

<u><em>The molarity of the solution is 0.29 </em></u>\frac{moles}{liter}<u><em></em></u>

5 0
3 years ago
Read 2 more answers
Foods cook faster when placed in a pressure cooker. This is because the pressure on the surface of the water is (higher than/low
tia_tia [17]

Answer:

The pressure is higher than the atmospheric one, therefore the temperature is less.

Explanation:

When it is closed permanently, the pressure of the pot inside it increases, generating that the atoms and particles of the water are closer together, increasing their kinetic energy, if intermolecular friction and therefore the boiling point is lower, because the water reaches a boil or boil at a lower temperature.

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Is lithium ionization energy high low or medium?
satela [25.4K]
It’s soft which makes It low energy
6 0
2 years ago
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