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Veseljchak [2.6K]
3 years ago
5

1. Which of the following is an example of a hypothesis?

Chemistry
1 answer:
sashaice [31]3 years ago
5 0

Answer:the correct answer is c

Explanation:

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The nucleus of an atom contains at least one<br> proton.<br> True or false
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How much heat energy would be released if 78.1 g of water at 0.00 °c were converted to ice at −57.1 °c. give your answer as a po
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To convert 78.1 g of water at 0° C to Ice at -57.1°C; we can do it in steps;
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The heat of fusion of ice is 334 J/g; 
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2. Ice at 0°C to -57.1°C 
Specific heat of ice is 2.108 J/g
Heat = 78.1 × 2.108 J/g = 164.6348 Joules
Thus the total heat energy released will be; 26085.4 + 164.6348 
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3 years ago
The calculation of quantities in chemical equations are called...
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5 0
3 years ago
Compare the properties of protons neutrons and electrons
butalik [34]
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A silver necklace has a density of 10.5 g/mL and a volume of 1.5 mL. What is the mass of the silver necklace?
melamori03 [73]

Answer:

15.75g

Explanation:

Rearrange the formula: density = mass/volume, so that mass is the subject: mass = density × volume

Now substitute (plug in) the known values into the formula:

mass = 10.5 × 1.5 ⇒ mass = 15.75g

The mass of the silver necklace is 15.75g

Hope this helps!

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2 years ago
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