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tamaranim1 [39]
3 years ago
8

Which factor affects an objects weight but not its mass?

Chemistry
1 answer:
Alika [10]3 years ago
5 0

Answer:

Gravity

Explanation:

Gravity is the pull of an object to another object like a human to the Earth. This is weight.

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A match has about 21 milligrams of red phosphorus coating the tip. How many atoms of phosphorus is this?
MAXImum [283]

Answer:

4.083 * 10^20 atoms.

Explanation:

One Mole of phosphorus  contains 6.022 * 10^23 atoms (Avogadros number)'

Since 1 mole of Phosphorus  has a mass of  30.974 grams, 21 milligrams has

6.022 * 10^23  * 0.021 / 30.974

= 0.004083 * 10^23

= 4.083 * 10^20

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Can Hydrogen hydrogen bond with itself? <br><br> Example:<br> Is H-H a hydrogen bond?
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It can form dipole-dipole interactions but that’s all
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A substance that contains various elements or compounds without bonding or fixed proportions is a(n) _____.
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Is a mixture! .......
8 0
3 years ago
Read 2 more answers
Match each part of the electrochemical cell with its function.
umka21 [38]

Hi!


The correct options would be:

1. Cathode - <em>reduction</em>

The cathode is the negatively charged electrode, and so has an excess of electrons. Cations (positively charged ions) are attracted to the cathode, and gain electrons to acquire a neutral charge. The process in which a gain of electron occurs is called reduction.


2. Anode - <em>oxidation</em>

The opposite occurs at the anode which is positively charged and attracts negatively charged ions, anions. These anions lose their electrons at the anode to acquire a neutral charge, and the process involving loss of electrons is known as oxidation.


3. Salt Bridge - <em>ion transport </em>

Salt bridge is a physical connection between the the anodic and cathodic half cells in an electrochemical cell and is a pathway that facilitates the flow of ions back and forth these half cells. Salt bridge is involved in maintaining a neutral condition in the electrochemical cells, and its absence would result in the accumulation of positive charge in the anodic cell, and negative charge in the cathodic cell.


4. Wire - <em>electron transport </em>

Wires have a universal role of being a pathway for the transport of electrons in circuit. This role is also the same in the wires involved in an electrochemical cells where they are used to transport electrons from the anodic half cell, and this electron transport results in the generation of electricity in the internal circuit of the electrochemical cell.


Hope this helps!

4 0
3 years ago
What coefficients would balance the following equation?<br><br> __C2H6 + __O2 → __CO2 + __H2O
lina2011 [118]
2C2H6 + 7O2 → 4CO2 + 6H2O
3 0
2 years ago
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