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dangina [55]
3 years ago
11

Jacob floated a long steel sewing needle on a small piece of cork in a glass of water. He noticed that as he turned the glass ar

ound, the cork and needle continued to point toward his backyard. Even after he turned the small floating cork around gently, the needle finally pointed toward the backyard. What is the MOST LIKELY conclusion Jacob will draw? A) There is a large magnet in the backyard. B) Jacob’s backyard is on the north side of his house. C) The backyard is downhill from where Jacob is standing. D) A gentle breeze is causing the needle to point toward the backyard.
Chemistry
2 answers:
max2010maxim [7]3 years ago
7 0

Answer:

<em>Hello, Your answer will be </em><em>B) Jacob's backyard is on the north side of his house.</em>

<em>Hope That Helps!</em>

Vladimir79 [104]3 years ago
6 0

Answer:

The answer would be B.    Hope that helps! Stay healthy

Explanation:

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Just write a C.E.R (claim, evidence, reasoning)​
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Answer:

I have attached pictures below. Maybe those will help?

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3 years ago
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How does mass and volume affect sinking and floating? Please don't plagiarize.... ​
Firdavs [7]

Answer:

If an object has a higher density than the fluid it is in (fluid can mean liquid or gas), it will sink. If it has a lower density, it will float. Density is determined by an object's mass and volume. If two objects take up the same volume, but have one has more mass, then it also has a higher density.

Explanation:

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3 years ago
What is the name for NH
rjkz [21]

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4 0
3 years ago
Design an experiment to collect data that supports the claim that a 1.0M NaCl solution is a homogenous mixture.
Alika [10]
The claim is that NaCl mixture is a homogeneous mixture.
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First, we need to prepare one molar solution of NaCl. To do so, we will dilute a mass of 58.44 grams (molar mass of NaCl) in 1 liter of water.
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We can notice that once the NaCl is diluted in water, all what you can see is a clear solution. You cannot see the separate particles of NaCl in water.
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Now, we will heat this solution until it boils and water starts evaporating. We will place a cold surface above the steam coming out from the boiling solution.

What we will observe is that when all the water evaporates, we can see white precipitate of NaCl in the bottom of the container. Examining the cold surface placed above the steam, we can see that the water has condensed on this surface.
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Based on this, we managed to use boiling, evaporation and condensation (physical methods) to restore the components of the solution separately.
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Based on observation I, observation II and the conclusion. we were able to prove that NaCl solution is a homogeneous mixture.
7 0
3 years ago
How many moles are in 5.0 x 10^25 atoms of iron?
Andreas93 [3]

Hello!

To find the number of moles that are in the given amount, we need to divide the total number of atoms by Avogadro's number, which is 1 mole is equal to 6.02 x 10^23 atoms.

5.0 x 10^25 / 6.02 x 10^23 ≈ 83.0564

Therefore, there are about 83.06 moles of iron (sigfig: 83 moles).

7 0
3 years ago
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