1 Which best defines concentration?A ratio that describes the amount of solute divided by the amount of solvent or solutionB ratio that describes the amount of solvent or solution divided by the amount of solute C ratio that describes the mass of solute divided by the mass of solvent D ratio that describes the amount of solvent in a solution
ANSWER: (A) ratio that describes the amount of solute divided by the amount of solvent or solution
2 Which contributes to the dissolution of sugar in water?A the dissociation of an ionic compound in waterB a strong pull of water molecules on an ionic compoundC the dissociation of a polar covalent compound in waterD a strong pull of water molecules on a polar covalent compound
ANSWER: (D) a strong pull of water molecules on a polar covalent compound
So you have to multiply 786,3 times 0.98 to get the mass the mass is 770.57 if u round its 770.6 or 771
<span>The
metallic properties that are caused by atoms rolling over each other in
metallic bonds are malleability and ductility.the atoms that are being rolled
over are delocalized electrons in the sea of electrons in the metallic bond
enable them to roll over when stress is applied.</span>
Answer:
T₂ = 221.8 K
Explanation:
Given data:
Initial temperature = 57.9°C ( 57.9+273 =330.9 k)
Initial volume = 75.8 mL
Final volume = 50.8 mL
Final temperature = ?
Solution:
According to Charles's law,
V₁ /T₁= V₂/T₂
T₂ = V₂T₁/V₁
T₂ = 50.8 mL ×330.9 k / 75.8 mL
T₂ = 16809.72 mL.K/ 75.8 mL
T₂ = 221.8 K
