Read the information in the table below:



Which type of reaction is represented by B? (5 points)
Endothermic reaction
Exothermic reaction
Reaction between liquids
Reaction between solids

Read The Information In The Table Below:Which Type Of Reaction Is Represented By B? (5 Points)Endothermic

Answers

Answer 1

Answer:

it's exothermic reaction, becasue it have negative energy and the temperature increases


Related Questions

a solution containing 1.00 g of an unknown nonelectrolyte liquid and 9.00 g of water has a freezing point of -3.33 *C. Calculate the molar mass of the unknown liquid in g/mol.

Answers

The depression in freezing point of water here is 3.33 °C. Then the molality of the solution is 1.79. From number of moles of solute is calculated as 0.0161. Then , the molar mass of the solute is 62.11 g.

What is depression in freezing point ?

The addition of a non-volatile salt into a solvent will decrease the freezing point of the solution than the pure solvent. The change in freezing point is proportional to the molality of the solution.

ΔTf = Kf m

Kf is called molal depression constant.

Kf for water = 1.86 °C Kg/mol

given ΔTf = 3.33 (0 - (-3.33))

then m = ΔTf /Kf =  3.33/ 1.86 °C Kg/mol = 1.79

Now, mass of water= 9 g = 0.009 kg

then number of moles = molality × mass of solvent

n = 0.009 kg × 1.79 = 0.0161.

mass of solute taken = 1 g

then, molar mass = 1/0.0161 = 62.11 g.

Therefore, the molar mass of the solute is 62.11 g.

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For the reaction 2HNO3 + Mg(OH)2 → Mg(NO3)2 + 2H₂O, how many grams of magnesium nitrate are produced from 9 grams of nitric acid, HNO3 ?​

Answers

This should be the answer


I’ll put the last part here


So, 10.52 grams of magnesium nitrate are produced from 9 grams of nitric acid, HNO3.
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