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3 years ago

HELP ME PLEASE PLEASE HELP TAHNK YOU :)

Chemistry

1 answer:

allsm [11]3 years ago

4 0

If a light bounced off at a 40 degree angle it would bounce off at an 80 degree angle. Hope i am right

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Explain why the product at the negative electrode is not always a metal.

Elena-2011 [213]

Answer:

Whether you get the metal or hydrogen during electrolysis depends on the position of the metal in the reactivity series: the metal will be produced if it is less reactive than hydrogen. hydrogen will be produced if the metal is more reactive than hydrogen.

3 0

3 years ago

Identify each of the following half-reactions as either an oxidation half-reaction or a reduction half-reaction. half-reaction i

Natasha2012 [34]

Answer: Oxidation reaction: $Al(s)\rightarrow Al^{3+}(aq)+3e^-$

Reduction reaction: $Sn^{2+}(aq)+2e^-\rightarrow Sn(s)$

Overall redox reaction : $2Al(s)+3Sn^{2+}(aq)\rightarrow 2Al^{3+}(aq)+3Sn(s)$

Explanation:

Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.

$Al(s)\rightarrow Al^{3+}(aq)+3e^-$

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

$Sn^{2+}(aq)+2e^-\rightarrow Sn(s)$

Overall redox reaction : $2Al(s)+3Sn^{2+}(aq)\rightarrow 2Al^{3+}(aq)+3Sn(s)$

5 0

3 years ago

What is true of gas?

KatRina [158]

Answer:

Gas is a state of matter that has no fixed shape and no fixed volume. Gases have lower density than other states of matter, such as solids and liquids. There is a great deal of empty space between particles, which have a lot of kinetic energy. ... The particles exert more force on the interior volume of the container

Explanation:

3 0

3 years ago

Read 2 more answers

What is the mass of 1.2x10^25 atoms of Helium

Molodets [167]

Answer:

dunno

Explanation:

sorry

4 0

3 years ago

Identify the weakest bond. identify the weakest bond. triple covalent bond single covalent bond double covalent bond all of the

Oliga [24]

The weakest bond is a single covalent bond.

5 0

3 years ago