1)The state or phase in which most ionic compounds occur will be a solid state or phase. This will make the correct answer A.
2) The compound Co is an example of a covalent compound. This will make the answer to be D.
Answer:
two poles
A magnet is any object that produces its own magnetic field that interacts with other magnetic fields. Magnets have two poles, a north pole and a south pole. The magnetic field is represented by field lines that start at a magnet's north pole and end at the south pole.
Explanation:
MORE POWER
Answer:
CaCO₃(s) → CaO(s) + CO₂(g)
Explanation:
The decomposition reaction always make two compounds from one.
The products always have simpler chemical structure, originated from a determined compound. This can happens spontaneously or by a third party.
A notable example of decomposition is hydrolysis. As for example the case of water, which decomposes and generates oxygen and hydrogen gas
2H₂O (l) → 2 H₂ (g) + O₂ (g)
In this case, the calium carbonate decomposes into CaO and CO₂
These two, are the products of the decomposition.
Of course, the unique reactant is the Calcium Carbonate
The balanced equation is:
CaCO₃(s) → CaO(s) + CO₂(g)
Answer:
We will use the combined gas equation.
The final volume V₂=931.74 mL
Explanation:
The combined gas equation shows the interrelationship between the volume, the pressure and the absolute temperature of a fixed mass of an ideal gas,
P₁V₁/T₁=P₂V₂/T₂
Because we are looking for the volume after the initial conditions havre been varied, we will call this volume, volume 2 ( V₂)
Let us make it the subject of the equation.
V₂=(P₁V₁T₂)T₁P₂
P₁=1.50 ATM
P₂=1.20 ATM
V₁=800 mL
V₂=?
T₁=(20+273)K=293 K
T₂=0+273 K=273 K
V₂=(1.50 ×800×273)/(293×1.2)
V₂=931.74 mL
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