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Fofino [41]
4 years ago
14

Which phrase describes an iron ore?

Chemistry
1 answer:
Alecsey [184]4 years ago
6 0

Answer:

a rock containing a lot of iron

Explanation:

Iron ore is an ore of iron and this implies a rock that contains a substantial amount of iron.

An ore is a naturally occurring rock type that hosts a certain type of metal or solid that can be won at profit with some gangue minerals. Iron ore is one such type of substance from which significant amount of iron can be extracted for use by man. The remaining part quite not useful is the gangue.

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How does the circultatory system and muscular system work together?
grin007 [14]

Answer:

d.

Explanation:

i was think b at first but that doesnt really explain how it gets to the circulatory system so d because without the the regulation of the heart rate and oxgen rich blood the muscular system can do absolutely nothing

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3 years ago
Why is there little heat retained in the warm thermosphere? a. The pressure is too low c. The molecules move too fast b. The pre
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I believe the correct answer is A
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What does it mean to say that the electric current from a wall socket is “120 V AC”?
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5 0
3 years ago
During the cold winter months the surface Of a lake becomes hard Ice this is due to which change of state
nikitadnepr [17]

Freezing

Explanation:

This change in state when surface of a lake changes to hard ice is known as freezing.

  • When a solid is heated, it melts and changes to a liquid. On further heating, it changes to vapor and the randomness increases.
  • When a liquid is cooled below its freezing point, it changes to a solid such as ice for water.
  • The phase change is known as freezing.

Learn more:

Phase change brainly.com/question/1875234

#learnwithBrainly

8 0
3 years ago
Gold is often used with other metals, such as copper and zinc, to make jewelry. Approximately 58% of the mass of a certain 40 gr
Oduvanchick [21]

Answer:

1.2 cm³.

Explanation:

The following data were obtained from the question:

Mass of neckl = 40 g

Density of gold = 19.3 g/cm³

Volume of gold =..?

Next, we shall determine the mass of the gold in the necklace.

From the question given above, we were told that 58% of the mass of the necklace is gold. Thus, we can obtain the mass of the gold in the necklace as follow:

Mass of neckl = 40 g

Mass of gold =?

Mass of gold = 58% × 40

Mass of gold = 58/100 × 40

Mass of gold = 23.2 g

Therefore, the mass of the gold in the necklace is 23.2 g

Finally, we shall determine the volume of the gold in the necklace as follow:

Density of gold = 19.3 g/cm³

Mass of gold = 23.2 g

Volume of gold =..?

Density = mass /volume

19.3 = 23.2/Volume

Cross multiply

19.3 × Volume = 23.2

Divide both side by 19.3

Volume = 23.2 / 19.3

Volume of gold = 1.2 cm³

Therefore, the volume of the gold in the necklace is 1.2 cm³

4 0
3 years ago
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