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frozen [14]
3 years ago
15

Does Catalysts increase the rate of chemical reactions. true or false

Chemistry
1 answer:
anastassius [24]3 years ago
6 0
True.

A catalyst is a substancr that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.

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46.6 grams of mercury II sulfate (HgSO4) reacts with an excess of sodium Chloride (NaCl). How many grams of mercury II chloride
slega [8]

Answer:

m_{HgCl_2}=42.7gHgCl_2

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

HgSO_4+2NaCl\rightarrow HgCl_2+Na_2SO_4

In such a way, the mercury II sulfate (molar mass 296.65g/mol) is in a 1:1 molar ratio with the mercury II chloride (molar mass 271.52g/mol), for that reason the stoichiometry to find mass in grams of mercury II chloride turns out:

m_{HgCl_2}=46.6gHgSO_4*\frac{1molHgSO_4}{296.65 gHgSO_4}*\frac{1molHgCl_2}{1molHgSO_4} *\frac{271.52gHgCl_2}{1molHgCl_2} \\\\m_{HgCl_2}=42.7gHgCl_2

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3 years ago
How would you pick the right kind of fluid to use in your hydraulic lift?
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Answer:you would pick the fluid by seeing what would work such as gas in a truck or car you need to know what would work best and the best power for the lift

Explanation:

3 0
3 years ago
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Question 10
Rainbow [258]

Answer:

b

Explanation:

jus bc

6 0
3 years ago
A farmer is analyzing cross sections of his land to determine where to build a well.
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H2 + NO → H2O + N2<br><br><br> If 180.5 grams of N2 are produced, how many grams of H2 were reacted?
Lena [83]

Answer:

12.89 moles

Explanation:

Before we solve the question, we have to balance the equation of the reaction first. The balanced reaction will be:

2 NO + 2 H2→ N2 + 2 H2O

There are 180.5g of N2 produced, the number of produced in moles will be: 180.5g / (28g/mol)= 6.446 moles

The coefficient of H2 is two and the coefficient of N2 is one. Mean that we need two moles of H2 for every one mole of N2 produced. The number of H2 reacted will be: 2/1 * 6.446 moles = 12.89 moles

6 0
4 years ago
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