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BabaBlast [244]
2 years ago
12

Iron in rock combining with oxygen to form hematite

Chemistry
1 answer:
blondinia [14]2 years ago
4 0
The answer is a. Chemical change.
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Consider the reaction. mc015-1.jpg How many grams of N2 are required to produce 100.0 L of NH3 at STP?
Nadusha1986 [10]
The  grams  of N2  that  are   required   to  produce 100.0 l  of  NH3   at  STP

At  stp 1moles = 22.4  l. what  about  100.0 L of NH3

= 100 / 22.4 lx1  moles = 4.46  moles  of NH3

write the reacting  equation

N2+3H2 =2NH3
by use of mole  ratio  between  N2  to NH3  which is  1:2 the moles of N2 =4.46/2 =2.23  moles of N2

mass =  moles  x  molar  mass

=  2.23moles  x 28  g/mol =  62.4 grams
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3 years ago
If an atom or ion has an atomic number of 3, 2 electrons, and the electronic configuration is 2, what is the mass number? ​
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It’s mass number would be 5 as it’s the protons and the neutrons added together
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What does contact forces and non-contact forces mean?
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A 800g/cm³ boulder has a density of 8g/cm³ what is the volume
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3 years ago
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Does sulfured food taste different?
Volgvan

Answer:

Yes

Explanation:

Sulfur in its pure do not have any taste and odor but many foods rich in sulfur can have a distinct odor and taste. The foods contains sulfur in very small amounts but some of the foods which are known for rich in sulfur are onion, garlic, egg, flex seeds, walnuts, meat, red bell pepper, cheese, green vegetables etc.

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8 0
3 years ago
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