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svlad2 [7]
3 years ago
14

Help Asap, timed assignment

Chemistry
2 answers:
Art [367]3 years ago
7 0

Answer:

C

Explanation:

Svetllana [295]3 years ago
5 0

Answer:

Decomposers is the answer. Example of a decomposer: Mushroom

Explanation: They break down deceased organisms into the soil then that helps plants grow

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Magnesium Oxide decomposes to produce 3.54 grams of oxygen gas. How many grams of magnesium oxide decomposed?
sukhopar [10]
<h2>Let us solve for it </h2>

Explanation:

Magnesium oxide

  • It is MgO  
  • Its molecular mass is : 24 +16=40 g
  • When MgO decomposes it forms = 3.54 g of oxygen gas  
  • when 40 g of MgO decomposes it forms = 16g of oxygen  
  • or we can say that :
  • 16g of oxygen is produced when 40 g of MgO is decomposed .
  • 1g of oxygen will be formed from =40/16g of MgO  
  • 3.54 g of oxygen will be formed = 40/16 x 3.54 =8.85g of MgO  

4 0
3 years ago
What are the 3 primary consumers and what are the 3 secondary consumers
goldenfox [79]
Primary:
Grasshopper
Mouse
Grass

Secondary:
Hawk
Snake
Coyote 
8 0
3 years ago
What does a chemical formula like Na2CO3 tells us?
USPshnik [31]

It has: 2 atoms of sodium (Na) 1 atom of Carbon 3 atoms of Oxygen bound together with ionic and polar-covalent bonds

8 0
3 years ago
Using the equation 2H2+O2=2H2O, when 47g of water are produced, how many grams of hydrogen must react?
Fed [463]

See , from the equation we can see that for forming two mole of H2O 2Mole of H2 has to react.

Mass of 2 Mole H2O is 18*2gm or 36gm.

So for forming 36 gm H2O 2×2 I.e. 4 gm H2 has to take part in reaction.

Therefore, to form 1 gm H2O 4÷36 gm of H2 has to take part.

So, for forming 47gm H2O (4÷36)×47 gm H2 has to take part

I.e. 5.22 gm of H2 has to take part

So, ans is 5.22 gm of hydrogen.

Hope it helps!!!

6 0
3 years ago
Read 2 more answers
Calcium chloride forms an ionic solid. how are the particles held together and arranged in the solid
Advocard [28]
Calcium chloride forms an ionic compound with a regularly arranged lattice of oppositely charged ions.

The Na+ and Cl- ions are held together by strong electrostatic forces. 

Hope that helps


7 0
3 years ago
Read 2 more answers
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