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pashok25 [27]
4 years ago
12

Why would you add a catalyst to something

Chemistry
1 answer:
tekilochka [14]4 years ago
5 0

Answer:

If this related to science, then you would add a catalyst to speed up a reaction.

Explanation:

The definition of a catalyst is: "a substance that causes or accelerates a chemical reaction without itself being affected".

Examples of this include the enzymes in our stomach acid that aid in digestion.

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Answer:

A

Explanation:

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3 years ago
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Why does tire pressure change with temperature? Explain why the atoms are interacting in the certain way, How temperature plays
Wittaler [7]

The main reason behind this is Boyle's law and Gay Lussacs law

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6 0
3 years ago
Which of the following nuclei would be the least stable
Brut [27]

Answer:

C. 1 proton 3 neutrons

Explanation:

A nucleus is more stable if the ratio of the neutrons to protons is between 1:1 and 1:1.5.

Thus the ratios of neutrons to protons for  the nuclei are as follows

A- 1:1

B- 1:1

C- 1:3

D- 1:2

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3 years ago
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Write a balanced half-reaction describing the reduction of aqueous vanadium(V) cations to aqueous vanadium(I) cations.
olga nikolaevna [1]

Reduction refers to a chemical reaction in which electrons are gained by one of the atoms involved in the reaction and at the same time lowering of an oxidation state of that atom takes place.  

In the given case, the reduction occurs at the cathode. In aqueous, V (vanadium) is present in +5 oxidation state that on reduction modifies to vanadium (aq) with +1 oxidation state.  

The half reaction is:  

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4 years ago
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At STP what is the volume of 16.34 grams of nitrogen gas?
nika2105 [10]

Answer:

Volume = 13.06 L

Explanation:

We are given: mass of nitrogren gas = 16.34 g

We know: molar mass of nitrogen gas = 28.014 g/mol

: ideal gas law constant = 0.082 L.atm/K.mol

At STP: temperature = 273.15 K

: pressure = 1 atm

We first determine the number of moles of nitrogen gas:

n = m/M

= 16.34/28.014

= 0.58 mol

Using the ideal gas law:

\begin{gathered} PV\text{ = nRT} \\  \\ \therefore V\text{ = }\frac{nRT}{P}\text{ = }\frac{0.58\times0.082\times273.15}{1}\text{ = 13.06 L} \end{gathered}

6 0
1 year ago
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