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Artemon [7]
2 years ago
8

Which statement best describes John Dalton’s use of creativity in his work?

Chemistry
2 answers:
Rina8888 [55]2 years ago
5 0

Answer:

its A) He reinterpreted and retested Joseph Proust’s results.Explanation:

bekas [8.4K]2 years ago
4 0

Answer:

A the answer is A

Explanation:

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A heptagon has six sides.<br> a. True<br> b. False
AlladinOne [14]
B) False- It has seven
A hexagon would have 6.
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3 years ago
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For the following reaction, 5.04 grams of nitrogen gas are allowed to react with 8.98 grams of oxygen gas: nitrogen(g) + oxygen(
OLga [1]

Answer:

1. 10.8 g of NO

2. N₂ is the limting reagent

3. 3.2 g of O₂ does not react

Explanation:

We determine the reaction: N₂(g) + O₂(g) →  2NO(g)

We need to determine the limiting reactant, but first we need the moles of each:

5.04 g / 29 g/mol = 0.180 moles N₂

8.98 g / 32 g/mol = 0.280 moles O₂

Ratio is 1:1, so the limiting reactant is the N₂. For 0.280 moles of O₂ I need the same amount, but I only have 0.180 moles of N₂

Ratio is 1:2. 1 mol of N₂ can produce 2 moles of NO

Then, 0.180 moles of N₂ may produce (0.180 .2) / 1 =  0.360 moles NO

If we convert them to mass → 0.360 mol . 30 g/1 mol = 10.8 g

As ratio is 1:1, for 0.180 moles of N₂, I need 0.180 moles of O₂.

As I have 0.280 moles of O₂, (0.280 - 0.180 ) = 0.100 moles does not react.

0.1 moles . 32 g/mol = 3.2 g of O₂ remains after the reaction is complete.

8 0
3 years ago
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Please help asap!!!!!!!
Slav-nsk [51]

Answer:

A.

Explanation:

Power is measured in Watts, and can we calculated by taking the work done in joules / the time in seconds. Thus, 1 Watt is 1 joule per 1 second (1 Watt = 1J/s)

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What are the three particles of an atom
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The three particles of any atom are
<u>electron</u>) the smallest particle and is held in shells around the nucleus of the atom
<u>proton</u>) is found in the nucleus and is much larger than an electron
<u>neutron</u>) the same mass as a proton and also found in the nucleus of the atom
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I. If plants are placed under a green light, then they will stay the same height because they will not grow.
LiRa [457]

Sentence II is not a correctly formatted hypothesis because it is factually inaccurate because plants need light source to grow as they provide food for them by photosynthesis.

<h3>What is photosynthesis?</h3>

The photosynthesis is a process into which plants make their food by absorbing carbon dioxide and releasing oxygen in the environment.

Plants absorb light from sun rays and converts the light source to energy and produce glucose this process or reaction is known as photosynthesis.

Therefore, sentence II is not a correctly formatted hypothesis because it is factually inaccurate because plants need light source to grow as they provide food for them by photosynthesis.

Learn more about photosynthesis, here:

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