All categories

4 years ago

Given the balanced equation: 4Fe(s) + 30₂(g) → 2Fe₂O₃(s) + 1640 kJ Which phrase best describes this reaction?

Chemistry

1 answer:

Troyanec [42]4 years ago

3 0

Answer:

yeah the answer under the explanation

Explanation:

The answer is (4) exothermic with ΔH = -1640 kJ. The 1640 kJ energy is at the right side of equation means that it releases energy. The enthalpy change means the energy of production minus the energy of reactants. If it is exothermic, the ΔH < 0.

You might be interested in

Alcohol and water are placed into closed-end manometer, in order to measure the vapor pressure of each of the 2 liquids at 25oC.

mihalych1998 [28]

Answer:

Vapor pressure in atm = 0.13 atm

Explanation:

Hope it will hlp

Brainlists plz

 

3 0

3 years ago

Read 2 more answers

C2H6 + Cl* => C2H5* + HCl

Contact [7]

Answer:

C2H6 + Cl → C2H5 + HCl

equation is balanced

8 0

3 years ago

SCIENCEEEE!!!! HELPPPPP MEEEE OUTTTT!!!!

krok68 [10]

B and e

first we need to balance the NH3 hence first we do E and multiplying the coefficient by 2. that will leave us with N2+H2–>2NH3.
N2 and H2 is balanced and now all that is left to do is the balance H2 by 3 as there is 6H on RHS hence we need 6H on LHS

3 0

3 years ago

What is also known as neutralization? 1. Acid-base 2. Redox 3. Precipitation

Lunna [17]

Answer:

acid base

Explanation:

plz mark me brainliest

3 0

3 years ago

If you obtain 3.0 grams of aspirin from an experiment that could make no more than 3.14 grams, what is the percent yield?

Masteriza [31]

Answer:

96%

Explanation:

To find the percent yield, we can use this equation

$\frac{Actual}{Theoretical} *100$

The actual yield of aspirin is 3.0 and the theoretical is 3.14 in this case, so just plug the numbers in.

$\frac{3.0}{3.14} *100\\\\ =96$

Thus the percent yield is 96%

;)

3 0

3 years ago