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3 years ago

Halp balance plez (⊙◡⊙)

Chemistry

1 answer:

grandymaker [24]3 years ago

8 0

Answer: SnO2 + 2 H2 = Sn + 2 H2O

Explanation: I used a balance equation website. It's called WebQC if you want to check it out for future help.

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What is the final product of the electron transport chain

Anna71 [15]

Answer:

water and atp

Explanation:

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3 years ago

What is the 4 methods that can be used to separate mixtures?

SCORPION-xisa [38]

<span>Separating mixtures can be done in many ways. One of these methods is the physical methods which include, filtration, crystallization, distillation, and chromatography.

Since mixtures come in a lot of forms and many phases, some of them cannot be separated through the first physical methods. The methods of separating mixtures depend on the kind of mixture. Other common separation methods include fractional distillation which is similar to simple distillation method, magnetism, which is ideal for mixtures whose one part has magnetic properties and separating funnel, an ideal technique used to separate immiscible liquids..</span>

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3 years ago

Calculate the quantity of electricity obtained from 2 moles of electrons

Vinil7 [7]

The quantity of electricity : 2 Faraday = 193000 Coulomb

<h3>Further explanation</h3>

Given

2 moles of electrons

Required

The quantity of electricity

Solution

According to Faraday, the amount of current flowing in the electrolysis cell is closely related to the amount of substance that reacts

1 Faraday is the amount of electricity that is passed in the electrolysis cell to obtain 1 mole of electrons. 1 mole of electrons is equivalent to an electric charge of 96500 Coulombs.

The conversion / relationship can be stated as follows:

1 Faraday = 1 mole of electrons = 96500 Coulombs

1 faraday = coulomb / 96500

Can be formulated

Coulomb = Q = I. t so:

$\large {\boxed {\bold {1 \: Faraday \: = \: \dfrac {i \: x \: t} {96500}}}}$

so for 2 moles electrons :

= 2 x 96500 C

= 193000 C

= 2 Faraday

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3 years ago

For each of the following acid-base reactions, calculate how many grams of each acid are necessary to completely react with and

Anika [276]

Answer:

$m_{HCl}=2.19gHCl$

Explanation:

Hello,

In this case, for the reaction between hydrochloric acid and sodium hydroxide, for 2.4 g of base, we can compute the neutralized grams of acid by applying the 1:1 molar ratio between them and their molar masses, 36.45 g/mol and 40 g/mol respectively as shown below by stoichiometry:

$m_{HCl}=2.4gNaOH*\frac{1molNaOH}{40gNaOH}*\frac{1molHCl}{1molNaOH}*\frac{36.45gHCl}{1molHCl}\\ \\m_{HCl}=2.19gHCl$

Best regards.

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3 years ago

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Artyom0805 [142]

Answer:

Explanation:

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3 years ago