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Anna35 [415]
3 years ago
6

Describe at least two experiments, including the observed results, that caused the scientific community to accept changes to Dal

ton's original model of the atom.
Chemistry
1 answer:
WINSTONCH [101]3 years ago
5 0
The model after John Dalton's was J.J Thompson's plum podding model in 1897, which described electrons as dots or raisins(if you will) in a circle shaped pudding that was entirely positive using a Cathode Ray Tube(shot cathode rays between magnets). The model after that is the Niels Bohr model in 1913, which depicts atoms like positively charged center called the nucleus with negatively charged particles called electrons in a shell or cloud.
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What is true of a strong acid? (3 points)
forsale [732]
The answer is A it’s ionizes in water
5 0
3 years ago
Read 2 more answers
Please help on the questions that is left blank!! Due soon and will mark brainliest
34kurt

Answer: The strength of an acid or alkali depends on the degree of dissociation of the acid or alkali in water. The degree of dissociation measures the percentage of acid molecules that ionise when dissolved in water. He could use universal indicators or litmus paper for this.

i hope this helps you!

3 0
2 years ago
From the given reactions, which process represents the bond dissociation?
Sonbull [250]

Answer:

The correct option is: Br₂--------->2 Br(g)

Explanation:

Bond dissociation is a process in which energy is applied to break a chemical bond between the atoms of a molecule to give free atoms.

In the given reaction: Br₂-------->2 Br(g)

The covalent bond in Br₂ molecule dissociates to give two moles of bromine atoms. Therefore, it is a bond dissociation reaction.

5 0
3 years ago
Which of these statements explains the relationship among elements, compounds, and mixtures?
gladu [14]
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An example of a mixture would be salt dissolved in water, and an example of a compound would be water (which is made up of 2 Hydrogen and 1 Oxygen bonded together)

tl;dr: I would go with B, basically.
6 0
2 years ago
Identify the decay mode of hydrogen -3.
Phantasy [73]

Answer:

The radioactive decay mode that does not result in a different nuclide is gamma decay. In gamma decay, the only product is a gamma ray photon.

Explanation:

5 0
1 year ago
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