Chemistry, 12.12.2020 16:40 damientran
2)Na produção do metal manganês é realizada a partir de uma reação de simples troca
com carvão e minério pirolusita (Mno), como representado na equação a seguir:
MnO, +C - Mn + CO2
Podemos afirmar que o(s) agente(s) redutor(es) dessa equação é(são):
a) Mno
b) Mno, e CO2
c) CO2
d) C
e) Mn
Answers: 2
Chemistry, 22.06.2019 03:30, asianaenaeh
Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!
Answers: 1
Chemistry, 22.06.2019 09:10, aleilyg2005
Select the correct answer from each drop-down menu. describe what happens to a carbon-11 atom when it undergoes positron emission. the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons
Answers: 3
Chemistry, 22.06.2019 17:40, aaliyahthomas37
Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.
Answers: 1
2)Na produção do metal manganês é realizada a partir de uma reação de simples troca
com carvão e mi...
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