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Leto [7]
3 years ago
15

If an unknown substance CANNOT be broken down into simpler substances, it is

Chemistry
1 answer:
lisov135 [29]3 years ago
5 0

The correct answer is b. an element

The explanation:

when the ELEMENT is define as substance that cannot be decomposed (broken down) into simpler substances by ordinary chemical means. Examples: gold, iron, carbon, hydrogen, oxygen, nitrogen

Ex: diamond will be broken into carbon as well.

and SUBSTANCE: Material composed of only one kind of matter throughout (same atoms or same molecules).

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Pls help and match them
slega [8]

Answer:

Simile: C

Personification: D

Symbol: A

Hyperbole: B

Metaphor: E

Explanation:

3 0
3 years ago
Completion
Snowcat [4.5K]

Answer:

  1. Compress
  2. Fixed
  3. Melts
  4. Melting Point
  5. Freezing Point
  6. High
  7. Crystalline
  8. Lattice
  9. Unit cell
  10. Amorphous solids

Explanation:

Solids tend to be dense and difficult to <u>compress.</u>

They do not  flow or take the shape of their containers, like liquids do, because  the particles in solids vibrate around <u>fixed</u> points.

When a solid  is heated until its particles vibrate so rapidly that they are no longer  held in fixed positions, the solid <u>melts</u>.  

<u>Melting point</u> is the  temperature at which a solid changes to a liquid. The melting and <u>freezing point</u>  of a substance are at the same temperature.

In general,  ionic solids tend to have relatively <u>high</u>  melting points, while  molecular solids tend to have relatively low melting points.

Most  solids are <u>crystalline</u>

The particles are arranged in a pattern known  as a crystal <u>lattice</u>

The smallest subunit of a crystal lattice is the <u>unit cell</u>  

Some solids lack an ordered internal structure   and are called <u>amorphous solids.</u>

7 0
3 years ago
Which of the following is not a response?only one
HACTEHA [7]

Answer:

'djweidj

d

Explanation:

7 0
3 years ago
What are 3 effects of global warming​
gayaneshka [121]

Explanation:

As the climate warms, it changes the nature of global rainfall, evaporation, snow, stream flow and other factors that affect water supply and quality.

7 0
3 years ago
Read 2 more answers
What effect would increasing the amount of air surrounding the apple have on the apple ?
CaHeK987 [17]

Answer:

It has been suggested that climate change, which would generally lead to warmer winters in the Northeast, may make it difficult to produce some apple varieties in parts of the region. ... Greater variability in weather, such as warm periods followed by cold snaps in winter, can damage both flower buds and trees.

Explanation:

4 0
3 years ago
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