2 years ago

Additional purchases may be added in open-end credit. True False

1 answer:

6 0

Open- end credit can be used for anything up to a certain limit but nothing can be purchased after they’ve reached the limit

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On average, Earth’s crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink can contains approximately 15

MrMuchimi

Answer:

5400 cans

Explanation:

First we convert the total weight, 1 ton, to grams:

$1ton=1x10^{6}g$

Now we need to know the mass of aluminum:

$m_{Al}=\frac{10^{6}*8.1}{100} =81000g$

Now we make the relation between the mass of aluminum in 1 ton of the earth's crust and the mass of aluminum per can:

$n=\frac{81000g}{15g/can} =5400cans$

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4 years ago

Calculate the ΔHrxn for the following

Vesnalui [34]

Answer:

2 NO (g) → N2 (g) + O2 (g)

2 NOCl (g) → 2 NO (g) + Cl2 (g)

____________________________

2NOCl (g) ⟶ N2 (g) + O2 (g) + Cl2 (g)

ΔH = [90.3 kJ x 2 x -1] + [-38.6 kJ x -1 x 2] = -103.4 kJ

The ΔH for the reaction is -103.4 kJ

6 0

3 years ago

If the mass of a material is 78 grams and the volume of the material is 23 cm3, what would the density of the material be?

Paraphin [41]

Density = mass / volume

Density = (78g) / (23cm^3)

Density = 3.4g/cm^3

8 0

4 years ago

Read 2 more answers

Elements are made up of one type of atom. Compounds are particles that have more than one atom joined together. They can be ....

Agata [3.3K]

Answer:

metal or non metal

Explanation:

this is the answer

4 0

2 years ago

A substance freezes at -58 celcius. Therefore a substance melts at: ________________

Liono4ka [1.6K]

-58 °C
The melting point is the same as the freezing point.

4 0

3 years ago