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IceJOKER [234]
3 years ago
7

If you could help it would be awsome!!!!!

Chemistry
2 answers:
n200080 [17]3 years ago
8 0

Answer:

1. 2 and 1=2

2. 2 and 1=2

3. 2 and 1=2

4. 4 and 1=2

5. 2=2 and 1

6. 2 and 3=2

7. 2=4 and 1

8. 3 and 1 =2

MArishka [77]3 years ago
3 0

Answer:

1. _2_H2 + ___ O2 → _2_ H2O

2. _2_ Mg + ___ O2 → _2_ MgO

3. _2_ Li + ___ F2 → _2_ LiF

4. _4_ K + ___ O2 → _2_ K2O

5. _2_ H2O2 → _2_ H2O + ___ O2

6. _2_ Al + _3_ Cl2 → _2_ AlCl3

7. _2_ Ag2O → _4_ Ag + ___ O2

8. _3_ H2 + ___ N2 → _2_ NH3

Explanation:

You might be interested in
Which of the following is not a correct chemical equation for a double displacement reaction?
Step2247 [10]

Answer:

B. CaCl + LiCO3 yields CaCO3 + LiCl is not correct

It should be CaCl2 + Li2CO3  → 2LiCl + CaCO3

Explanation:

For a reaction to be double displacement reaction there are two things we need to look for

1) There must be an interchange of the group of ions

2) The reactants must dissolve in water to release ions

A. 2RbNO3 + BeF2 yields Be(NO3)2 + 2RbF

2Rb+ + NO3- + Be^2+ + 2F- → Be(NO₃)₂ + 2RbF

This is correct

B. CaCl + LiCO3 yields CaCO3 + LiCl

This is not correct

The correct equation is:

CaCl2 + Li2CO3  → Ca2+ + 2Cl- + 2Li+ + CO3^2-  → 2LiCl + CaCO3

C. Na3PO4 + 3KOH yields 3NaOH + K3PO4

3Na+ + PO4^3- + 3K+ + 3OH- → 3NaOH + K3PO4

This is correct

D. 2MgI2 + Mn(SO3)2 yields 2MgSO3 + MnI4

2Mg^2+ + 4I- + Mn^4+ + 2SO3^2- → 2 MgSO3 + MnI4

This is correct

8 0
3 years ago
How much carbon would be needed to make 8.8g of carbon dioxide?<br>​
PIT_PIT [208]
The calculation for such a question can be achieved via Avogadro hypothesis

We know molar mass of CO2 is 44g/mole which is the sum of atomic masses i.e; C and 2 oxygen atoms

Molar mass of CO2 =12(C)+2*16(O) = 44 g/mole will contain 6.023 ※10^23 CO2 molecules ..

44g/mole = 6.023 ※10^23 CO2 molecules

=> 1g = (6.023/44) ※10^23 CO2 molecules

==> 8.80g = 8.80(6.023÷44)10^23 = 1.2046 ※10^23 molecules of CO2….

Thus there r 1.2046 ※10^23 molecules of CO2 in 8.80g

if u need to calculate no. of carbon atoms then multiply result by 1 and if u need no of oxygen atoms in 8.80g of co2 then multiply the result by 2 ….
7 0
2 years ago
Given the reaction: 3() + () → 3() + 2()
Scilla [17]

Answer:

i think d is the answer for this

3 0
2 years ago
The process of cell division that creates sex cells reproducing organism is called?
xxTIMURxx [149]
B. meiosis is the process of cell division that creates sex cells in a reproducing organism.
5 0
3 years ago
If the equilibrium concentrations of products are much greater than those of reactants in this system, what would be the magnitu
miss Akunina [59]

Answer:

K > 1.

Explanation:

∵ The equilibrium constant K = [products]/[reactants].

Since, [products] > [reactants].

<em>∴ The equilibrium constant K > 1.</em>

5 0
3 years ago
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