<span> Iron and oxygen react to </span>form<span> iron(III) oxide:
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4 Fe(s<span>) + </span>3 O₂ (g) → 2 Fe₂O₃ (s<span>)
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This type of chemical reaction is a "<u>synthesis</u>" reaction
(forms a "metal oxide" product).
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Answer:
Disadvantages of Deforestation
1. The Nature will be destroyed and there will be no trees where birds lay eggs and eat their fruits.
2. There will be pollution because trees are cut down and there will be no fresh air will be produced if they were cutted down.
Good luck
Answer:
The answer to your question is: Covalent compounds.
Explanation:
In chemistry there are two kinds of compounds:
Ionic compounds are composed by a metal and a nonmetal, and some are
good conductors of electricity in solid state or when they
dissolve in water.
Covalent compounds are composed by to nonmetals, their melting point is
lower compare to ionic compounds and are not
conductors of electricity in solid state or when are
dissolve in water.
Answer:
i) 24.305 u
iv) The number of protons determines an element's atomic number and is used to distinguish one element from another.
Answer: a) 0.070 moles of oxygen were produced.
b) New pressure due to the oxygen gas is 2.4 atm
Explanation:
According to ideal gas equation:
P = pressure of gas = 2.7 atm
V = Volume of gas = 700 ml = 0.7 L
n = number of moles = ?
R = gas constant =
T =temperature = 329 K
Thus 0.070 moles of oxygen were produced.
When the 700 mL flask cools to a temperature of 293K.
The new pressure due to the oxygen gas is 2.4 atm
