Answer:
a. C5H12 + O2 → CO2 + H2O
c) Mg + O2 → MgO
Explanation:
Una reacción de combustión es definida como una reacción en la que un elemento o compuesto reacciona con oxígeno para producir un óxido y liberar calor.
Cuando un hidrocarburo (De fórmula general CₓHₙ) entra en combustión, dióxido de carbono y agua son producidos.
Así, las reacciones que corresponden a combustión son:
a. C5H12 + O2 → CO2 + H2O
<em>Se produce dióxido de carbono y agua</em>
c) Mg + O2 → MgO
<em>Se produce óxido de magnesio y se libera calor.</em>
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I think so because I did this before
Answer: 2
Explanation: Greenhouse gases are very important in keeping our planet just right. If we have too many Greenhouse gases it would be too hot, but we can't eliminate all of them or it will be too cold
Answer:
ε = 201.5
Explanation:
Given data-
mass of benzene = 25.8 mg
= 25.8×10^-3 kg
Atomic mass of benzene= 78.11 amu
volume of hexane = 250.00 ml = 0.2500 L
Absorbance = 0.266
Length of the cell = 1.00 cm
Hence concentration =
solving we get
= 0.00132 M
Formula:
A= εcl
A= absorbance
c= concentration and l= length of cell
now substituting values in the above formula
0.266= ε×0.00132×1.000
⇒ε =
⇒ε = 201.5
Answer:
Na.
Explanation:
- The oxidation-reduction reaction contains a reductant and an oxidant (oxidizing agent).
- An oxidizing agent, or oxidant, gains electrons and is reduced in a chemical reaction. Also known as the electron acceptor, the oxidizing agent is normally in one of its higher possible oxidation states because it will gain electrons and be reduced.
- A reducing agent (also called a reductant or reducer) is an element (such as calcium) or compound that loses (or "donates") an electron to another chemical species in a redox chemical reaction.
<em>2Na + S → Na₂S.</em>
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Na is oxidized to Na⁺ in (Na₂S) (loses 1 electron). "reducing agent".
S is reduced to S²⁻ in (Na₂S) (gains 2 electrons). "oxidizing agent".