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Ira Lisetskai [31]
3 years ago
12

How do you balance: Al+Fe3O4=Al2O3+Fe ?

Chemistry
2 answers:
Keith_Richards [23]3 years ago
4 0

Answer:

8Al + 3Fe3O4 → 4Al2O3 + 9Fe

Explanation:

liraira [26]3 years ago
3 0

Answer:

8Al+3Fe3O4=4Al2O3+9Fe

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Which example is an organism?<br><br> lung<br><br><br> virus<br><br> heart<br><br><br> bacteria
mixas84 [53]

Answer:

Bacteria

Explanation:

bactiera are single-celled oraganism.

4 0
3 years ago
How many hydrogen atoms are in water?
Viefleur [7K]
Water is H2O. hydrogen atom is H1 O2
so hydrogen atom is H2
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Humans absorb oxygen from the air they breathe in and exhale carbon dioxide gas, CO2.Carbon dioxide gas is
Alex

Answer:

A

an element made of carbon and oxygen atoms.

7 0
3 years ago
Read 2 more answers
If the volume of a gas at 0.5 atm changes from 150 mL to 75 mL, what is the new pressure?
nalin [4]

Answer:

<h2>1 atm </h2>

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we're finding the new pressure

P_2 =  \frac{P_1V_1}{V_2}  \\

We have

P_2 =  \frac{0.5 \times 150}{75}  =  \frac{75}{75}  = 1 \\

We have the final answer as

<h3>1 atm </h3>

Hope this helps you

3 0
3 years ago
Consider the reaction in the lead-acid cell pb(s) pbo2(s) 2 h2so4(aq) 2 pbso4(aq) 2 h2o(l) for which e°cell = 2. 04 v at 298 k.
aleksley [76]

δg° for the reaction having e° cell = 2.04v. is 393.658kJ.

The lead (Pb) in the lead storage battery act as an anode

<h3>What is Voltaic Cell?</h3>

A voltaic cell or galvanic cell is an electrochemical cell that uses chemical reactions to produce electrical energy.

<h3>Parts of voltaic cell</h3>

Anode where oxidation occurs Cathode where reduction occurs.

Therefore, Pb acts as anode and PbO2 act as a cathode.

Given,

E° cell = 2.04v

Faraday constant= 96485 C/mol

Moles of electron transferred n= 2

∆G = -nFE°

= -2 × 96485 × 2.04

= 393.658kJ

Thus we concluded that the δg° for the reaction having e° cell = 2.04v. is 393.658kJ.

learn more about voltaic cell :

brainly.com/question/1370699

#SPJ4

8 0
2 years ago
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