giannawindham1 giannawindham1

16-10-2022
Chemistry

Answered

Consider the following processes: 1. A ─→ B delta H = ─100 kJ 2. B ─→ C + D delta H = ─50 kJ 3. E ─→ D delta H = ─25 kJ What is the delta H for the process: A ─→ C + E?

Answer :

Other Questions

calculate the overall energy change for the reaction of 2 H-O-O-H ➜ 2 H-O-H + O = O O-O 138 kJ/mol O = O 496 kJ/mol O-H 463 kJ/mol

The concentration of a solution for the treatment of Alzheimer disease is 0.96 m/m% for the memantine (active compound). Give the m/v% composition of the soluti

The theoretical value for the Ka of 0.1 M acetic acid is 1.8 x 10^-5. Calculate the percent error by taking the absolute value of the following expression.

Consider the balanced reaction of magnesium and oxygen. 2 Mg + O2–>2 MgO What mass, in grams, of MgO can be produced from 1.78 g of Mg and 2.36 g of O2?

Perform the following operation and express the answer in scientific notation. 5.0x10-5 +2.0×10-4 [?]×10

Perform the following operation and express the answer in scientific notation. 5.0×10−5 +2.0×10-4 [ ? ]×10

In the following reaction, which substance is being oxidized and which is being reduced? Show your work in finding the answer. 2Mg(s) + O2(g) --> 2MgO

1. A 20.00g sample of gold (molar mass = 196.97, Cp = 0.129 J/g C) at 500 Celsius is placed in a water bath of 300.00g at a temperature of 30.00 Celsius (molar

Balance the following by the method of half reactions: S2O32- + H2O + Cl2 --> SO42- + Cl- + H+ What are the total number of electrons transferred in the bala

Humans and other mammals breathe in oxygen from the air for respiration. At the top of Mt Everest, assume the atmospheric pressure is 0.500 atm and the temperat