What moves in or out of a substance during a change of state?

Answers

Answer 1

Answer: Heat, which is energy, moves in or out of a substance during a change of state.

Related Questions

Which phrase most accurately describes a chemical change?Question 3 options:A change on the molecular level.A change in appearance.A change in taste.A change in form.
A sample of an iron ore is dissolved in acid, and the iron is converted to Fe2+. The sample is then titrated with 47.20 mL of 0.02240 M MnO4– solution. The oxidation-reduction reaction that occurs during titration is(a) How many moles of MnO4– were added to the solution? (b) How many moles of Fe2+ were in the sample?(c) How many grams of iron were in the sample? (d) If the sample had a mass of 0.8890 g, what is the percentage of iron in the sample?
Which sequence represents the relationship between temperature and volume as explained by the kinetic-molecular theory?higher temperature / more kinetic energy / more space between particles / higher volume higher temperature / less kinetic energy / less space between particles/ higher volume higher temperature / more kinetic energy / less space between particles / lower volume higher temperature / less kinetic energy / more space between particles / lower volume
Four acids are analyzed and their Ka values are determined. Which of the following values represents the strongest acid?
The process of photosynthesis is essential in the oxygen/carbon dioxide cycle. Photosynthesis removes ______ from the atmosphere and produces and releases ______ into the atmosphere.A) glucose, oxygen B) oxygen, glucose C) carbon dioxide, oxygen D) oxygen, carbon dioxide

how many moles of oxygen gas (o2) are required to react with 3.75 moles of ammonia (nh3) in the reaction 4nh3 + 5o2 → 4no + 6h2o?

Answers

4 NH₃ + 5 O2 = 4NO + 6 H₂O

4 moles NH₃ ---------> 5 moles O₂
3.75 mols NH₃ -------> ?

Moles O₂ = 3.75 x 5 / 4

Moles O₂ = 18.75 / 4

= 4.6875 moles of O₂

hope this helps!

What is made up of biotic and abiotic features

Answers

biotic - animals anything tht is living abiotic anything tht is non-living

Biotic-living organisms within an ecosystem.
Abiotic-non-living things.

Carbon can share a maximum of how many of its valence electrons when bonding to other atoms?2

4

6

Cannot be determined

Answers

Carbon can share a maximum of four of its valence electrons when bonding to other atoms. This is the reason why organic molecules can be so large because of this bonding. Suppose you have a compound of CCl4. You know that chlorine can only share 1 electron because 7 of its electrons are filled. Also, in carbon, it can only share 4 electrons because 4 of it are already filled. That is why carbon needs four chlorine to form CCl4.

How many grams of CuSO4 are there in 100.0g of hydrate?

Answers

Usually copper(ii) sulfate has a hydrate form with 5 moles of water or copper (II) Sulfate pentahydrate or CuSO4.5H2O. To answer this, 100g of the hydrate is multiplied by the reciprocal of its molar mass then muliplied by the molar ratio of CuSO4 to CuSO4.5H2O. Then finally

Water,h2o is an example of

Answers

A carbon free drink that is to keep your body more active and more alive I hope i helped

Final answer:

Water (H₂O) is an example of a covalent bond, where hydrogen and oxygen atoms share electrons to form a molecule. It is also a polar molecule and commonly acts as a solvent. Water is central in various scales of biological and environmental structures and processes.

Explanation:

Water, or H₂O, is an example of a covalent bond formation. This occurs when hydrogen and oxygen atoms join together, sharing electrons to fill their outer shells and create stability. This sharing of electrons forms a water molecule.

Furthermore, water is considered a polar molecule. Aside from covalent bonding, another characteristic of water is its ability to act as a solvent. It can dissolve gases, liquids, and solids to create different solutions, which is vital in many biological and chemical processes.

A representation of this can be seen from a hydrogen atom, to a water molecule, skin cell, liver, larger organisms like an elephant, wolf pack, up to larger ecosystems like tropical rainforests and the entire planet Earth, indicating the wide scope where water plays a crucial role.