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const2013 [10]
3 years ago
12

How do i determine the number of silicon atoms in the formula 4SiO2

Chemistry
1 answer:
Zinaida [17]3 years ago
8 0

Explanation:

es la respuesta correcta

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A chemical equilibrium between gaseous reactants and products is shown. N2(g) + 3H2(g) ⇌ 2NH3(g) How will the reaction be affect
Fudgin [204]

Answer:

reaction goes backward

as pressure decreases reaction shifts to more no of moles side that is 4 moles on left side

4 0
3 years ago
76/304=81/k what is K and show work plez
siniylev [52]
You can cross multiply and then get k alone so it would look like this:
76         81    
-----  =   ------    =  76k= 24624
304        k            -----  -----------  =      k  =  324
                             76        76


so k is equal to 324

hope this helps have a nice day
4 0
3 years ago
PLEASE HELP!!!!!!!
Anna11 [10]

Answer:

i think 30

Explanation:

5 0
3 years ago
Chemistry- "write the products expected from each acid-base reaction shown below........
Dahasolnce [82]
1.) NaOH + HCl  →  NaCl  +  H₂O
<span>
2.) Ca(OH)</span>₂ <span> +  H</span>₂<span>SO4  </span>→<span>  CaSO</span>₄ +  2H₂O
<span>
3.) 2HCl +Ba (OH)2  </span>→ <span> BaCl</span>₂  +  2H₂O
<span>
4.) HNO3 + LiOH   </span>→  <span> LiNO</span>₃ <span> +  H</span>₂O
<span>
5.) H</span>₂CO₃ + NaOH  →  Na₂CO₃  +  H₂O
<span>
6.) KOH  +  HC</span>₂H₃O₂  →  KC₂H₃O₂  <span>+  H</span>₂O
<span>
7.) Ba(OH)2 + HNO2  </span>→<span> Ba(NO</span>₂)₂<span>  +  H</span>₂O
<span>
8.) H</span>₂<span>SO</span>₃<span> + 2NaOH  </span>→<span>  Na</span>₂SO₃  <span>+  2H</span>₂O
<span>
9.) H</span>₃<span>PO</span>₄<span> + 3KOH  </span>→<span>   K</span>₃PO₄  <span>+   3H</span>₂O 
<span>
10.) 2HBr + Ca(OH)2  </span>→<span>  CaBr</span>₂  +  2H₂O


The reason why water is so recurrent is because of the general form that says:   ACID  +  BASE  →  SALT  +  WATER

I took the liberty of balancing the equations.
8 0
4 years ago
Definition for starch in science ?
Akimi4 [234]

Answer:

  1. Starch is a polysaccharide comprising glucose monomers joined in α 1,4 linkages. or
  2. Starch is a long-chain polymer of glucose molecules joined together. or
  3. A starch is a complex polysaccharide made up of a large number of glucose units joined together by glycosidic bonds.

Explanation:

starch, a white, granular, organic chemical that is produced by all green plants. Starch is a soft, white, tasteless powder that is insoluble in cold water, alcohol, or other solvents.

Starch is amongst the most abundant plant products and is a mixture of two polymers, amylose and amylopectin. During food processing starch is transformed by hydrothermal treatments. ... The structure of starch is also influenced by specific and non-specific interactions with other food constituents and ingredients.

5 0
3 years ago
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