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siniylev [52]
3 years ago
8

You are an intermediate product of an industrial process which intends to separate iron from its ore. A well known iron ore is h

ematite. Which of these ores does not contain iron?
Goethite
Malachite
Siderite
Limonite
Chemistry
1 answer:
taurus [48]3 years ago
3 0

Answer:

Malachite

Explanation:

Malachite is a copper carbonate hydroxide mineral, with the equation Cu2CO3(OH)2. This dark, green-joined mineral solidifies in the monoclinic precious stone framework, and frequently shapes botryoidal, sinewy, or stalagmitic masses, in cracks and profound, underground spaces, where the water table and aqueous liquids give the way to synthetic precipitation. So, the answer is malachite. Best of Luck!

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What evidence supports the law of conservation of energy?
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Answer:

light energy is converted to chemical energy during photosynthesis.

Explanation:

Law of conservation of energy says: Energy can neither be created nor destroyed-only converted from one form of energy to another.

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3 miles of NaCl in 12 liters of water <br> What is the molarity
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Answer:

12 \: litres \: contain \: 3 \:  \: moles \: of \: sodium \: chloride \\ 1 \: litre \: will \: contain \:  \frac{(1 \times 3)}{12} moles \\  = 0.25 \: mol \:  {l}^{ - 1}

Explanation:

12 \: litres \: contain \: 3 \:  \: moles \: of \: sodium \: chloride \\ 1 \: litre \: will \: contain \:  \frac{(1 \times 3)}{12} moles \\  = 0.25 \: mol \:  {l}^{ - 1}  \\ or : 0.25 \: M

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If an automobile air bag has a volume of 11.6 ll , what mass of nan3nan3 (in gg ) is required to fully inflate the air bag upon
Tresset [83]

22.3 g of NaN₃ are required to fully inflate an airbag of 11.6 L at STP.

To find the mass, the given data was,

Volume = 11.6 Liters

<h3>What is decomposition reaction?</h3>

A decomposition reaction can be defined as a chemical reaction in which one reactant breaks down into two or more products.

In airbags, sodium azide decomposes to form sodium and nitrogen gas, which inflates the bag. The decomposition reaction is:

2 NaN₃ ⇒ 2 Na + 3 N₂

We can calculate the mass of NaN₃ needed to produce 11.6 L of N₂ at STP, using the following relations.

  • At STP, 1 mole of N₂ occupies 22.4 L.
  • The molar ratio of N₂ to NaN₃ is 3:2.
  • The molar mass of NaN₃ is 65.01 g/mol.

Substituting all the known values to find the volume,

11.6 × ( 1 / 22.4) × ( 2/3) × ( 65.01 / 1)

= 22.4 g.

22.4 g of NaN₃ are required to fully inflate an airbag of 11.6 L at STP.

Learn more about decomposition reaction,

brainly.com/question/8009068

#SPJ4

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