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NISA [10]
3 years ago
5

Dough to which potassium bromate has been added rises better, producing a lighter, larger volume loaf.

Chemistry
1 answer:
Maslowich3 years ago
4 0
2KBrO₃(s) = 2KBr(s) + 3O₂(g)
Oxygen gas is formed.
This food supplement E924 is banned in some countries.
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Marcus measured the masses and volumes of samples of four different substances, and he calculated their densities. The table sho
Zina [86]

<u>Given:</u>

Calculated density values-

Aluminum = 2.7 g/cm3

Copper = 9.0 g/cm3

Iron = 7.9 g/cm3

Titanium = 4.8 g/cm3

Unknown sample mass = 9.5 g

Sample volume = 2.1 cm3

<u>To determine:</u>

The identity of the unknown sample

<u>Explanation:</u>

'Density' is a physical parameter which can be used to identify the nature of the unknown substance.

Density = Mass/Volume

For the unknown sample

Density = 9.5 g/2.1 cm3 = 4.52 g/cm3

This matches closely with the calculated density of titanium

Ans: The unknown substance is made of titanium

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3 years ago
What is NOT a condition needed for a hurricane to form?
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Answer:

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Answer:

The answer is B

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How do you balance a chemical equation
Dominik [7]
There should be mass balance and the charge balance between the reactants and the products

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Charge balance : Overall charge of the reactants should be balanced with the overall charge of the products

You can balance,

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2)by Algebraic method given above or

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You need to know how to get the oxidation numbers in order to use the oxidation method

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3 years ago
When an electron of a hydrogen atom travels from n = 4 to n = 2, a photon of energy 4.165 × 10-19 joules is released. Calculate
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Answer:

Explanation:

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3 years ago
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