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wariber [46]
4 years ago
11

How many joules in a calorie

Chemistry
1 answer:
Tanya [424]4 years ago
8 0

Answer:

4184

Explanation:

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Calculate the Kc for the following reaction if an initial reaction mixture of 0.500 mole of CO and 1.500 mole of H2 in a 5.00 li
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2 years ago
Suggest a suitable electrolyte that could be used if the iron ring is to be plated with silver​
sasho [114]
In electroplating with silver, silver cyanide is used in the electrolyte rather than other compounds of silver such as silver nitrate, AgNO3, because the cyanide ion, CN-, reacts with silver ion, Ag+, to form the complex ion Ag(CN) -.
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3 years ago
Which choice can be classified as a pure substance?
pentagon [3]

Answer:

Salt

Explanation:

It is because it has a defined composition.

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3 years ago
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What physical properties can be used to separate heterogeneous mixture's?
marysya [2.9K]
Evaporation, distillation, filtration and chromatography
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7 0
3 years ago
The density of aluminium is 2830 Kg/M^3. what is the density of aluminum in g/cm^3?​
postnew [5]
<h3>Answer:</h3>

2.83 g/cm³

<h3>Explanation:</h3>
  • Density of a substance is the ratio of mass of the substance to its volume.

Therefore;

  • Density is given by dividing mass of a substance by its volume.
  • It is measure in g/cubic centimeters or kg per cubic meters.

In this case;

Density of Al = 2830 Kg/m³

We are required to convert is to g/cm³

We use the relationship;

1 g/cm³ = 1000 kg/m³

Therefore;

= 2830 kg/m³ ÷ 1000 kg/m³

= 2.83 g/cm³

Hence, 2830 kg/m³ of Aluminium is equivalent to 2.83 g/cm³

4 0
4 years ago
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