Answer: A solid is something that can hold its own shape and is hard to compress (squash). However, ice is different from most solids because its molecules are less densely packed than in liquid water so ice takes up a little more space than the same amount of liquid water. This is why ice floats.
Explanation: Hope it works!!!!!
Answer:
The molarity of I₃⁻ (aq) solution: M₂ = 0.186 M
Explanation:
Given net ionic equation:
2S₂O₃²⁻ (aq) + I₃⁻ ( aq ) ⟶ S₄O₆²⁻ (aq) + 3I⁻ (aq)
Number of moles of S₂O₃²⁻: n₁ = 2, Number of moles of I₃⁻: n₂ = 1
Given- For S₂O₃²⁻ solution: Molarity: M₁ = 0.380 M, Volume: V₁ = 29.4 mL;
For I₃⁻ (aq) solution: Molarity: M₂ = ? M, Volume: V₂ = 30.0 mL
To calculate the molarity of I₃⁻ (aq) solution, we use the equation:
Therefore, the molarity of I₃⁻ (aq) solution: M₂ = 0.186 M
Br-1
(NO3)-1
(SO3)2
c) Cl
d) F
Answer:
only chlorine can expand its octet.
Explanation:
An atom can expand its octet is it has empty d orbital
the electronic configuration of given elements will be:
B : 1s2 2s2 2p1 [Valence shell n =2 no d orbital]
O :1s2 2s2 2p4 [Valence shell n =2 no d orbital]
F : 1s2 2s2 2p5 [Valence shell n =2 no d orbital]
Cl :1s2 2s2 2p6 3s2 3p5 3d0 [Valence shell n =2 no d orbital]
Out of given elements only chlorine has empty d orbitals in its valence shell
Thus only chlorine can expand its octet.
Answer : The mass of 1.50 mole of iron(III) sulfate is,
Explanation : Given,
Moles of iron(III) sulfate = 1.50 mole
Molar mass of iron(III) sulfate = 399.88 g/mole
The formula of iron(III) sulfate is,
Formula used :
Now put all the given values in this formula, we get:
Therefore, the mass of 1.50 mole of iron(III) sulfate is,
The product participates in a side reaction.
Pure reactants are used.
A balanced chemical equation is used.
The product participates in a side reaction.
Explanation:
The reason why percentage yield for a chemical reaction can be less than a 100% is due to the presence of competing side reactions. As often the case and basics for all chemical reactions, mass and matter must be conserved. But sometimes the yield can be lower due to other reactions that must be considered.
Learn More:
#learnwithBrainly
Answer:
The product participates in a side reaction.
Explanation:
Answer:
247.4 g
Explanation:
Let's consider the thermochemical equation for the combustion of carbon monoxide.
CO(g) + 0.5 O₂(g) ⇒ CO₂(g) ΔH°c = -283.0 kJ/mol
The moles of carbon monoxide required to release 2500 kJ (-2500 kJ) are:
-2500 kJ × (1 mol CO/-283.0 kJ) = 8.834 mol CO
The molar mass of CO is 28.01 g/mol. The mass corresponding to 8.834 moles of CO is:
8.834 mol × 28.01 g/mol = 247.4 g