Answer: row 1, the volume decreases when the pressure increased
Explanation:
As you go down group 7 the melting point of the elements will increase, this is because as you go down the group you are gaining an electron shell and the molecule will become bigger. This increase in size means that there will be an increase in the intermolecular forces as well.
So the order would be NF3, NBr3, NI3.
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Answer:
Decreasing the temperature will shift the equilibrium leftwards towards reactants.
Explanation:
Hello!
In this case, since the reaction between chromate anions and hydrogen ions yields dichromate anions, water and heat, we can infer this is an exothermic reaction by which heat is released (remember in endothermic reactions heat is absorbed as a reactant), it means that considering the LeChatelier’s which states that increasing the temperature of an exothermic reaction shifts the equilibrium leftwards since heat is a product, otherwise (decreasing the temperature) the equilibrium will be shifted rightwards.
Therefore, decreasing the temperature is the perturbation that will shift the equilibrium leftwards towards the reactants.
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Answer:
1428 g
Explanation:
2.5 M = 2.5 mol/L
2.5mol/L*6.0 L = 15 mol MgCl2.
Molar mass (MgCl2) = 24.3 g/mol+(2*35.5 g/mol)=95.2 g/mol
15 mol * 95.2 g/mol = 1428 g
Your answer would be C because the fire gave the marshmellow a brown crust shwoing effect.