Answer:
A. Solid aluminum oxide and solid iron
Explanation:
The reaction equation is given as:
2Al + Fe₂O₃ → Al₂O₃ + 2Fe
The species on the left hand side are the reactants
Those on the right hand side of the expression are the products.
The products are:
Al₂O₃ and Fe
These are solid aluminum oxide and solid iron
Matter exists in different states such as solid, liquid and gas because of the kinetic energy of its particles and the intermolecular force of attraction between the particles.
A substance won't condense into a liquid or solid if the average kinetic energy is higher than the attraction forces holding the particles together.
Thus in solids, intermolecular force of attraction > kinetic energy of particles.
In a liquid (or solid), the average kinetic energy of the particles is low enough to allow the forces of attraction to hold the particles together. In a liquid (or solid), molecules do not separate.
In liquids, intermolecular force of attraction > kinetic energy of particles. But this force of attraction is smaller than solids.
The forces of attraction between the particles in a gas can be overcome by the average kinetic energy of the particles in the gas. When gas molecules collide, they spread apart.
In gas, intermolecular force of attraction < kinetic energy of particles.
To know more about states of matter visit the link:
brainly.com/question/9402776?referrer=searchResults
#SPJ1
B. A barrage stores water during high and low tides,when the water is released ,it turns the plant's turbine.
Using the subscripts from the given molecule we can find the symbols of cations, anions as well as number of ions.
<u>Explanation:</u>
CaI₂ = Ca²⁺ and 2I⁻ ions
Na₂CO₃ = 2 Na⁺ and 1 CO₃²⁻
Ga(ClO₃)₃ = Ga³⁺ and ClO₃⁻
CuF₂ = Cu²⁺ and 2 F⁻
(NH₄)₃PO₄ = 3 NH₄⁺ and PO₄³⁻
FeSO₄ = Fe²⁺ and SO₄²⁻
Mg(NO₃)₂ = Mg²⁺ and NO₃⁻
NH₄NO₂ = NH₄⁺ and NO₂⁻
KC₂H₃O₂= K⁺ and CH₃COO⁻
Na₂Cr₂O₇ = 2Na⁺ and Cr₂O₇²⁻
Answer:
Explanation: because more is always better