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kiruha [24]
3 years ago
9

A gene or trait that appears or expresses itself over a recessive trait is called A. a mutation. B. an influential gene. C. a do

minant gene. D. a chromosome.
Chemistry
1 answer:
olya-2409 [2.1K]3 years ago
8 0

Answer:

C.

Explanation:

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Which scientist performed the cathode ray experiment leading to the discovery of electrons
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The scientist that performed the cathode ray experiment leading to the discovery of electrons is J.J. Thomson.

<h3>What is a cathode ray?</h3>

A cathode ray is a tube that contains negatively charged electrode( that is the cathode) which emits electrons when heated at a low pressure.

The cathode ray was used by the scientist, J.J. Thomson to find the ratio of charge to mass (e/m) of the electrons.

Therefore, the scientist that performed the cathode ray experiment leading to the discovery of electrons is J.J. Thomson.

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2 years ago
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The measured value 24.00 g has an uncertainty of?
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The uncertainty depends on whether the measurement was obtained manually or digitally.

1. Manual

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Most measurements of mass are now made on digital scales.

A digital device must always round off the measurement it displays.

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If the measured value were 20.006, the display would round up to 20.01.

If the measured value were 19.994, the display would round down to 19.99.

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The scale shown below would display a mass of 20.00 g

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