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What type of bonding would be in NaCl?

NaCl is a complex molecule involving Na and Cl. Na is positively charged and Cl is negatively charged. As a result, the type of bonding cannot be covalent (as the molecules have charge), cannot be van der Wa...
TA
Answered by Tha A. • Chemistry tutor
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What is a catalyst, and how does it affect the rate of reaction?

A catalyst is a substance which provides an alternative pathway requiring a lower activation energy for the chemicals to react, and speeds up the rate of reaction. A catalyst also remains chemically unchange...
JE
Answered by Julia E. • Chemistry tutor
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Calculate the percentage by mass of nitrogen in an ammonia molecule (NH​​​​​​​3) . Take the relative atomic masses of hydrogen and nitrogen to be 1 and 14 respectively.

Calculating the mass of 1 molecule of ammonia: Mass = ( Number of hydrogen atoms x Mass of hydrogen atom) + ( Number of nitrogen atoms x Mass of nitrogen atoms) Mass = ( 3 x 1 ) + ( 1 x 14) = 17 Calculating ...
ND
Answered by Nic D. • Chemistry tutor
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c) What does the rate of reaction depend on? (2 marks)

Collision frequency of reacting particles Energy transferred during the collision
CP
Answered by Claire P. • Chemistry tutor
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b) What 3 factors can increase the rate of reaction? (3 Marks)

b) A catalysis, increased temperature, increased concentrationb
CP
Answered by Claire P. • Chemistry tutor
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