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Lisa [10]
3 years ago
5

Which of the following elements will function as an cathode when it reacts with Mg?

Chemistry
1 answer:
iogann1982 [59]3 years ago
8 0

Answer:

2. Ag

Explanation:

A cathode gains electrons therefore electrons are reduced. Silver (Ag) is a stronger oxidising agent than magnesium.

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Please can someone help me??!
svp [43]

I believe the correct order of words should be:

Counterclockwise

Crescent

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I am not sure on faces, but I don't see any other words from the bank that would fit that description. Hope these are correct and hope I helped!

4 0
3 years ago
In the following reaction 8 grams of ethane are burned and 11 grams of CO2 are collected. What is the percent yield? 2C2H6+7O2=
Alika [10]
47% yield.  
First, let's determine how many moles of ethane was used and how many moles of CO2 produced. Start with the respective atomic weights. 
Atomic weight carbon = 12.0107 
Atomic weight hydrogen = 1.00794 
Atomic weight oxygen = 15.999  
Molar mass C2H6 = 2 * 12.0107 + 6 * 1.00794 = 30.06904 g/mol 
Molar mass CO2 = 12.0107 + 2 * 15.999 = 44.0087 g/mol  
Moles C2H6 = 8 g / 30.06904 g/mol = 0.266054387 mol 
Moles CO2 = 11 g / 44.0087 g/mol = 0.249950578 mol  
Looking at the balanced equation, for every 2 moles of C2H6 consumed, 4 moles of CO2 should be produced. So at 100% yield, we should have 0.266054387 / 2 * 4 = 0.532108774 moles of CO2. But we only have 0.249950578 moles, or 0.249950578 / 0.532108774 = 0.46973587 =
46.973587% of what was expected.  
Rounding to 2 significant figures gives 47% yield.
8 0
4 years ago
Which evidence supports the claim that matter can bend light waves?
solmaris [256]

Answer:d

Explanation:I’m not 100% sure how to explain it but I’m almost for sure it’s d.

8 0
2 years ago
Read 2 more answers
Q1... list ten metal ..?​
Roman55 [17]

Gold.

Silver.

Iron.

Copper.

Nickel.

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Mercury( Liquid metal)

Titanium.

7 0
3 years ago
Read 2 more answers
Why do non-metal aroms form covalent bonds e.g. H2O​
Oksana_A [137]

Answer:

Covalent bonds usually occur between nonmetals. For example, in water (H2O) each hydrogen (H) and oxygen (O) share a pair of electrons to make a molecule of two hydrogen atoms single bonded to a single oxygen atom. ... Covalent compounds tend to be soft, and have relatively low melting and boiling points.

7 0
3 years ago
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