Order Instructions
QUESTION 1
Create an example of a scientific study that could be done in terms of the steps of the scientific method.
Be creative, and describe the study in terms of the steps of the scientific method.
QUESTION 2
List an example of each of the following: acid, base, strong electrolyte, weak electrolyte, non-electrolyte.
Explain why each of your examples given matches the definition.
QUESTION 3
In your own words, compare and contrast between fission and fusion.
Provide an example of each in your response.
QUESTION 4
What is the mass of sodium chloride used to create a 100 mL solution at a concentration of 1.5 M?
Your solution must include a step-by-step solution with units included throughout.
QUESTION 5
Water has a specific heat of 4.18 J/g- °C. What is the quantity of energy (in kJ) required to increase the temperature of a 50.0 g sample of water from 25 °C to 99 °C?
Your solution must include a step-by-step solution with units included throughout.
QUESTION 6
Given the reaction between ammonia and oxygen as 4NH3 + 5O2 arrow 4NO + 6H2O:
Calculate the amount of nitrogen monoxide (in grams) produced if 0.5 g of ammonia is reacted with 0.5 g of oxygen.
Indicate what the limiting reactant is.
Your solution must include a step-by-step solution with units included throughout.
QUESTION 7
For the nitrite ion (NO2-), identify: How many non-bonding lone pairs are in the ion?
What is the molecular shape of the ion?
How many resonance structures can be drawn from the ion?
QUESTION 8
The density of table salt is 2.16 g/cm3. Detail the conversion into units of pounds per liter, and provide the density in lb/L.
Your solution must include a step-by-step solution with units included throughout.
QUESTION 9
In the following table, note which intermolecular attractive interactions are present for each of the following substances. For each interaction, explain why you selected it or why you did not.
Exam Table
QUESTION 10
An electron transitions from n = 5 to n = 3 in a hydrogen atom. What is the energy required for this transition? Is energy emitted or absorbed in the transition?
Your solution must include a step-by-step solution with units included throughout.
QUESTION 11
As a birthday balloon is filled with helium, the amount of helium increases from 0.5 moles of helium to 5.5 moles of helium. If the initial volume of the balloon is 2.5 mL, what is the final volume?
Your solution must include a step-by-step solution with units included throughout.
QUESTION 12
The fluorocarbon compound C2Cl3F3 has a normal boiling point of 47.6 °C. The specific heat of this compound in the liquid state is 0.91 J/g-K and in the gas state is 0.67 J/g-K. The heat of vaporization is 27.5 kJ/mol. What is the amount of heat required to convert 5.6 g of the compound from a liquid at 30.0 °C to a gas at 60.5 °C?
Your solution must include a step-by-step solution with units included throughout.
Note- Each question must be answered separately and in numerical order. Thank you .
Note- Please see the link attached below to answer question 9