CN Conversion – Chemistry Quiz 3

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CN Conversion – Chemistry Quiz 3

The key terms of Chemistry Quiz include, CN, Conversion, Mass, Matter, Gasses.



Matter is defined as:

Anything that has mass.

Anything that occupies space and has mass. – correct

None are correct.

Anything that occupies space.

Some things that occupy space and have mass.


Gasses and liquids are compressible 

True

False – correct


Pure substances can be: Elements, Compounds and Heterogenous.

True

False – correct


A chemical change takes place when covalent bonds are broken and new covalent bonds are made.

True – correct

False


I want to make up my own energy units. I am going to call my energy unit CN after my initials. The conversion factor of CN is 1 CN = 156 cal.

 How much CN do I have if I start with 954 joules? Hint: you need 2 conversion factors  to solve this problem. The 2 are 4.184joules=1cal and 1CN=156cal. 

1.48×10CN

1.46 CN – correct

228 CN

37.3 CN


Specific heat capacity is a very useful measurement to identify substances. Remember the equation for specific heat capacity is q=mC(deltaT) delta T = Tf-Ti

What is the mass of a substance that has 67J of heat, a heat capacity of 0.385J/gC, a temperature final of 78C and a temperature initial of 4.0C?

2.351g

2.35g

2.3517g

None are correct

2.4g – correct


I want to make up my own energy units. I am going to call my energy unit CN after my initials. The conversion factor of CN is 1 CN = 156 cal.

 How much CN do I have if I start with 954 joules? Hint: you need 2 conversion factors  to solve this problem. The 2 are 4.184joules=1cal and 1CN=156cal. 

228 CN

37.3 CN

1.48×10CN

1.46 CN – correct


Specific heat capacity is a very useful measurement to identify substances. Remember the equation for specific heat capacity is q=mC(deltaT) delta T = Tf-Ti

What is the mass of a substance that has 67J of heat, a heat capacity of 0.385J/gC, a temperature final of 78C and a temperature initial of 4.0C?

2.35g

None are correct

2.3517g

2.4g – correct

2.351g


How many significant figures are contained in the following number:

0.10300

No answer text provided.

No answer text provided.

5 – correct

No answer text provided.


How many significant figures are contained in the following number:

5.032

4 – correct

3

1

Cannot be determined


Which is the correct way to write the following number in scientific notation?

90005.3427

0.900053427 x 105

9.00053427 x 10-4

9.00053427 x 104 – correct

None are correct

9.00 x 104


If someone is trying to convert 6.8 centimeters to nanometers what is the correct way to set this problem up?

6.8cm x (1cm/10-2m) x (10-9m/1nm) = 

6.6cm x (1cm/10-2m) x (1nm/10-9m) = 

6.8cm x (10-2m/1cm) x (10-9m/1nm) = 

6.8cm x (10-2m/1cm) x (1nm/10-9m) =  – correct


What is the correct way to set up the relationship between milligrams and grams?

10-3mg=1g

None are correct

1mg=10-3g – correct

10-6mg=1g

1mg=10-6g


How many surfboards can someone buy if surfboards cost 589 US Dollars and a person has 67981 Special Dollars?

1 US Dollar = 9.4 Special Dollars

115

639021

1084

12 – correct

None are correct


Matter is defined as:

Anything that has mass.

Anything that occupies space and has mass. – correct

None are correct.

Anything that occupies space.

Some things that occupy space and have mass.


Gasses and liquids are compressible 

True

False – correct


Pure substances can be: Elements, Compounds and Heterogenous.

True

False – correct


A chemical change takes place when covalent bonds are broken and new covalent bonds are made.

True – correct

False


I want to make up my own energy units. I am going to call my energy unit CN after my initials. The conversion factor of CN is 1 CN = 156 cal.

 How much CN do I have if I start with 954 joules? Hint: you need 2 conversion factors  to solve this problem. The 2 are 4.184joules=1cal and 1CN=156cal. 

1.48×10CN

1.46 CN – correct

228 CN

37.3 CN


Specific heat capacity is a very useful measurement to identify substances. Remember the equation for specific heat capacity is q=mC(deltaT) delta T = Tf-Ti

What is the mass of a substance that has 67J of heat, a heat capacity of 0.385J/gC, a temperature final of 78C and a temperature initial of 4.0C?

2.351g

2.35g

2.3517g

None are correct

2.4g – correct


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