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musickatia [10]
3 years ago
5

John dalton was the first person recorded as thinking that matter was ultimately composed of atoms. true or false

Chemistry
2 answers:
7nadin3 [17]3 years ago
4 0
Democritus of abdera  proosed the idea of an atoms in 5th century BC
Alona [7]3 years ago
3 0

<span>The statement is false. It was Democritus, a Greek philosopher, who first theorized that matter was ultimately composed of atoms. His ideas were not widely accepted in his time (460-370 B.C), but during the 19th century, John Dalton proposed this theory and gained broad acceptance.</span>

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Read 2 more answers
1. In regards to curly hair, which of the following statements
Kamila [148]

Answer:

A and D are the answers

Explanation:

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The graphics below shows how photosynthesis and cellular respiration are related.
lisov135 [29]

Options found from another source are:

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c energy stored as ATP

Explanation:

Cellular respiration converts glucose into energy in the form of ATP (c). The answer cannot be oxygen (a), because this is required for this process as a final electron acceptor. In terms of photosynthesis, oxygen is released as a by-product. The answer cannot be glucose (b) because that is our starting point for respiration, and what is synthesised during photosynthesis. The answer cannot be (d) as carbon dioxide and water are released by cellular respiration, and required by photosynthesis

8 0
4 years ago
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jonny [76]

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5 0
3 years ago
Determine % yield if a student obtains 45 g of product in an experiment and the theoretical amount is determined to be 50 g. *
ycow [4]

Answer:

90%

Explanation:

Percentage yield = ?

Theoretical yield = 50g

Actual yield = 45g

To calculate the percentage yield of a compound, we'll have to use the formula of percentage yield which is the ratio between the actual yield to theoretical multiplied by 100

Percentage yield = (actual yield / theoretical yield) × 100

Percentage yield = (45 / 50) × 100

Percentage yield = 0.9 × 100

Percentage yield = 90%

The percentage yield of the substance is 90%

6 0
3 years ago
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