CHEMISTRY HIGH SCHOOL

Balance chemical equations
_Fe + _H₂SO₄ -> Fe₂ (SO₄)₃ _ H₂

Answers

Answer 1
Answer: 2 Fe + 3 H₂SO₄ = 1 Fe₂(SO₄)₃ + 3 H₂

hope this helps!

Related Questions

Which best describes the function of a centrifuge?to separate the solute from the solvent to separate the dissolved part of a solution into layers to separate a mixture by heating it for a long period of time to separate the undissolved particles of a mixture into layers
The _______ is the total number of organisms that an ecosystem can support.a. tolerance rangeb. carrying capacityc. competitive exclusion principled. population
When are ionic bonds formed?
"For a many-electron atom, which of the following sublevels has the highest energy? A. 3p. B. 3d. C. 3s. D. 4s".
How many grams of oxygen are required to react with 10.0 grams of octane (C8H18) in the combustion of octane in gasoline?

Which reactants form the salt CaSO4(s) in a neutralization reaction?(1) H2S(g) and Ca(ClO4)2(s)
(2) H2SO3(aq) and Ca(NO3)2(aq)
(3) H2SO4(aq) and Ca(OH)2(aq)
(4) SO2(g) and CaO(s)

Answers

H₂SO₄(aq) and Ca(OH)₂(aq) form the salt CaSO₄(s) in a neutralization reaction. Therefore, option C is correct.

What is a neutralization reaction?

A neutralization reaction is a chemical process in which an acid and a base combine to produce salt and water as the end products. H⁺ ions and OH⁻ ions combine to generate water during a neutralization process.

The reaction between sulfuric acid (H₂SO₄) and calcium hydroxide (Ca(OH)₂) is an acid-base neutralization reaction that produces calcium sulfate (CaSO₄) and water (H₂O) as products. The balanced chemical equation for this reaction is:

H₂SO₄(aq) + Ca(OH)₂(aq) → CaSO₄(s) + 2H₂O(l)

In this reaction, sulfuric acid donates two protons to the hydroxide ions from calcium hydroxide, forming water molecules. The remaining ions (Ca²⁺ and SO₄²⁻) combine to form the solid product, calcium sulfate. Hence, option C is correct.

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The answer is (3) H2SO4(aq) and Ca(OH)2(aq). The neutralization reaction will not change the valence of elements. For (4), SO2 reacts with CaO is called synthesis reaction.

how do two oxygen atoms cancel out each other if they pull in opposite directions and how does the molecule become nonpolar

Answers

An even distribution of electron density across the molecule, which means that the molecule has no distinct positive or negative ends. This lack of polarity makes the molecule symmetrical, and the forces of attraction between individual molecules are weak. Consequently, nonpolar molecules tend to have low boiling points and are generally insoluble in polar solvents.

When two oxygen atoms come together to form an oxygen molecule (O2), they share electrons to form a covalent bond. In this bond, each oxygen atom shares two electrons with the other oxygen atom, creating a stable molecule.

While it is true that the oxygen atoms in O2 molecule are electronegative and pull on the shared electrons in opposite directions, the two oxygen atoms are identical in terms of their electronegativity. This means that they pull on the electrons with equal strength, resulting in a balanced distribution of charge across the molecule. As a result, the molecule becomes nonpolar.

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a) NaClO3 -> NaCl + O2------------------------DESCOMPOSICION b) HNO3 +Fe -> H2 + Fe (NO3)2------------SIMPLE SUSTITUCION c) Kl + Pb (NO3)2 -> Pbl2 + KNO3--------DOBLE SUSTITUCION d) C + O2 -> CO2-----------------------COMBINACION o SINTESIS e) Ca(HCO3)2 -> CaCO3 + CO2 + H2O--no estoy seguro pero en todo caso DESCOMPOSICION

Answers

a) 2 NaClO₃= 2 NaCl + 3 O₂  ( decomposition )

b) 2 HNO₃ + Fe = H₂ + Fe(NO₃)₂ ( single replacement )

c) 2 Kl + Pb(NO₃)₂ -> Pbl₂ + 2 KNO₃ ( double replacement )

d) C + O₂ -> CO₂ ( synthesis )

e) Ca(HCO₃)₂ = CaCO₃ + CO₂ + H₂O ( decomposition)

hope this helps!

Increasing the _________________ of a reactant exposes more of it to the reaction taking place. a. catalyst
b. surface area
c. concentration
d. heat

Answers

I would go with B as more of the reactant is exposed per mol. A catalyst provides and alternate reaction path that reduces the activation energy but not necessarily exposes more of the reactant. Increasing the concentration wont increase the amount of exposed area nor will increasing the tempurature.

What kind of energy transformation occurs in a gasoline-powered car? A.
Chemical energy is converted into mechanical energy.

B.
Mechanical energy is converted into light energy.

C.
Light energy is converted into sound energy.

D.
Sound energy is converted into chemical energy.

Answers

The energy transformation occurs in a gasoline-powered car is chemical energy is converted into mechanical energy. The answer is letter A. The rest of the choices do not answer the question above.
The answer is A. Chemical edgy is converted into mechanical energy. This is done buy the combustion engine of the car. The gasoline (chemical) is ignited by the spark plug moves the pistons in the engine (mechanical).

Which compound when stirred in water will not pass through filter paper?

Answers

In regards to this question, there are no options given to choose from and this makes the question difficult to answer. I hope the answer i am giving is the one you were looking for. The compound Mg(OH)2 when stirred in water will not pass through a filter paper as it is bound to form a sediment. This sediment will get stuck in the filter paper.
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Convert 123 in scientific notation
Chlorine has two naturally occuring isotopes - chlorine-35 and chlorine-37. Elaborate on how the atomic mass is determined given that chlorine-35 has an abundance of 75.78% and has a mass of 34.969 amu and that chlorine-37 has an abundance of 24.22% and a mass of 36.966 amu.
What is the pressure of 64 grams of O2 in a 1L container at a temperature of 10°C?
Which best describes a compound such as magnesium oxide?