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Chemistry

2 answers:

irinina [24]3 years ago

8 0

Answer: Hunter and gathers are mostly people who work in factories

I had this answer on a question before and this was my answer I did and it was right so I hope it was right and you did good!

lord [1]3 years ago

5 0

Answer:

the

first one

Explanation:

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6. At a glance, it appears like the law of

Mamont248 [21]

Energy and mass equivalence

Explanation:

The law of conservation of energy does not apply to nuclear reactions, the law of conservation of mass-energy makes more sense in this regard.

In nuclear reactions mass is transformed into energy. Therefore, it does not conform with the law of conservation of energy.

According to the law of conservation of energy "energy is neither created no destroyed but they are transformed from one form to another. "
In nuclear reactions, mass is usually lost. Mass is not conserved.
But, the mass is converted into energy and we say there is mass and energy equivalence for nuclear reactions.

Learn more:

Chemical laws brainly.com/question/5896850

#learnwithBrainly

4 0

3 years ago

Arrange the following in order of increasing melting point: NaCl, H2O, CH4, C6H4(OH)2.

aliina [53]

Explanation:

one thing to know is that higher surface area = higher boiling point.

NaCl has the smallest surface area, so it's the first one.

H2O has less surface area than methane, so it's second.

Methane has more surface area than H20, so it's third.

The big molecule has the most surface area, so it's last

7 0

3 years ago

A system contains bonds between particles. Which choice describes the microscopic structures of the energy in this system? There

borishaifa [10]

Answer:

The correct answer is: <em>There must be potential energy in the bonds due to its particles position.</em>

Explanation:

Potential energy is a kind of energy which is stored in an object due to its position or configuration. For example, if there is a ball in the fifth floor of a building, it has a determined potential energy which is converted to kinetic energy when the ball fall down. The same is in the case of the chemical bonds: the particles or atoms have potential energy related to their relative positions in the system. In fact, chemical energy is considered a form of potential energy (stored in chemical bonds).

8 0

4 years ago

Studies indicate that the methyl radical is trigonal planar. Based on this, which of the following best describes the methyl rad

Vikki [24]

Answer:

The carbon is sp² hybridized and the unpaired electron occupies a 2p orbital.

Explanation:

The central C atom has a trigonal planar geometry, so it is sp² hybridized.

The sp² bonds are formed by the hybridization of the 2s orbital with two 2p orbitals.

The unpaired electron goes into the unhybridized 2p orbital.