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3 years ago

Can mixtures and compounds be separated into their elements? If so which?

Chemistry

1 answer:

Mnenie [13.5K]3 years ago

8 0

Answer:

The individual components of a mixture can be physically separated from each other. Chemical compounds are very different from mixtures: The elements in a chemical compound can only be separated by destroying the compound.

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Each of the following reactions is incomplete. Match each of the following particles with the correct reaction in order to compl

kiruha [24]

Answer:

1. Option A. Beta decay minus 0 -1e

2. Option B. Alpha 4 2He

3. Option A. Beta decay minus 0 -1e

Explanation:

1. 66 29Cu is undergoing beta decay minus since it produces a daughter nuclei having the same mass number and the atomic number increased by 1 i.e 66 30Zn

2. 238 92U is undergoing alpha decay since the daughter nuclei produced has a decrease of 4 in the mass number and a decrease of 2 in the atomic number ie 234 90Th

3. 14 6C is undergoing beta decay minus since the daughter nuclei produced has the same mass number and the atomic number increased by 1 i.e 14 7N

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3 years ago

8. Taşma seviyesi 150 cm olan taşırma kabı

irina1246 [14]

Answer:

its a 3/8 you got it your smart

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3 years ago

Can someone help me?

8_murik_8 [283]

The action force is the weight of your body pressing on the chair:
The ACTION of sitting.

The reaction force comes from the chair against your body. It is equal to your weight:
The chair's REACTION to you sitting on it.

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3 years ago

If you have 20.0 g of CO2, how many atoms of Oxygen (O) are present in the sample?

Alecsey [184]

Answer:

20 g of CO₂ have 5.47x10²³ oxygen atoms

Explanation:

1 mol of CO₂ has 1 mol of C and 2 moles of O.

Mass / Molar mass = Moles

20 g / 44 g/m = 0.454 moles

In 1 mol we find 2 moles of O

In 0.454 moles of CO₂, we will find ( 0.454 .2) = 0.909 moles

1 mol has _____ 6.02x10²³ atoms

0.909 moles have (0.909 . 6.02x10²³) = 5.47x10²³ atoms

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3 years ago

ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST

Masteriza [31]

Atomic mass . . . ..........

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3 years ago

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