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Maru [420]
2 years ago
9

I need help with this please

Chemistry
1 answer:
Airida [17]2 years ago
3 0

Answer:

really?!

Explanation:

this is a test your suppose to answer it

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Gas burning in an engine is an example of a
pav-90 [236]
The answer is the first option. Gas burning in an engine is an example of a chemical change. Chemical change is a change where the substance changes in identity or form new substances after undergoing a process. In this case, the gas reacts with oxygen forming combustion products, commonly carbon dioxide and water.
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3 years ago
A solid ice cube absorbs 151.7 J of energy as it warms from 0.00°C to 4.70°C. What is the mass of the ice cube?
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If 14.3 moles of H2O2 is decomposed, how many grams of oxygen gas are produced?
Studentka2010 [4]
The balanced chemical reaction would be as follows:

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3 years ago
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Explain how atomic interactions determine a material to be transparent and opaque
mote1985 [20]

Answer:

The materials are opaque or crystalline from a client to the orientation and type of union between their atoms, forming two types of structures.

These two structures can be crystalline or amorphous.

In the case of being crystalline, these unions do not allow light to pass through the medium of the object or body of said compound, making it totally refract and giving the appearance of OPAQUE.

On the other hand, in those compounds that we call amorphous, the atoms are located in a different way that makes light pass through them, without absorbing or identifying any light beam, so they look transparent.

Explanation:

Example: A glass cup has an amorphous structure, while a porcelain or porcelain plate has a crystalline structure.

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What type of bonding holds the atoms in an h2o molecule together?
Ivanshal [37]
Covalent bond  two non metals
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