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liubo4ka [24]
2 years ago
5

How does the Law of Conservation of Matter apply to you when you eat food? Why do you not continuously gain exactly the amount o

f mass you consume with each meal?
Chemistry
1 answer:
jek_recluse [69]2 years ago
3 0
Because the law states that matter can neither be created nor destroyed but changed in form. And the same goes for energy that the body takes from the food, we give off that energy through heat and movement. Hope this helped!
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Valence electrons will either ______________ or ______________ to form molecules.
Aneli [31]

Answer:

ionic or covalent

Explanation:

The outermost electrons -- the valence electrons -- are able to interact with other atoms, and, depending on how those electrons interact with other the atoms, either an ionic or covalent bond is formed, and the atoms fuse together to form a molecule.

4 0
2 years ago
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A weighed piece of magnesium ribbon is added to a dried crucible, which is reweighed and heated in air to form the compound MgO.
olga nikolaevna [1]

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One of the errors for low percentage of magnesium could be because not all the magnesium may have reacted.

Explanation:

During the heating process, if the magnesium have not reacted completely, it can lead to low percentage of magnesium in the oxide formed. The product may still look a bit greyish rather than whitish after the heating process.

4 0
3 years ago
When a 0.4500 g sample of impure potassium chloride was dissolved in water and treated with an excess ofsilver nitrate, 0.8402 g
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97.78% KCl in the original sample

Explanation:

5 0
2 years ago
How many protons and electrons are present in an argon atom?
scoray [572]
Protons: 7Electrons:7
4 0
3 years ago
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Im not doing the math-
BigorU [14]
The average speed of the blocks are 0.36 m/s.
Explanation:
Average speed is defined as the ratio of distance covered per unit time. So if it is said that blocks are pulled to 0.9 m in the right side. This means the blocks cover a distance of 0.9 m from the origin and that distance is covered in 2.5 s. Thus, the average speed can be calculated from the change in speed with respect to time. As at time t = 0 , the speed is also zero, and at time t = 2.5 s , the speed will be
Since, in this case, the speed is equal to the average speed of blocks. So the average speed of the blocks will be 0.36 m/s.
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2 years ago
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