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zysi [14]
3 years ago
12

HELP NOW BRAINLIST AND 15 POINTS!!!!!! PLEASE HELPPP​

Chemistry
2 answers:
Varvara68 [4.7K]3 years ago
7 0

Answer:

1. Chemical change

2. It is creating a new substance

sorry for typeos or if wrong and for not answering all

ycow [4]3 years ago
3 0

Answer:

sis why u doing school at night Lol.Save it for me tomorrow

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If two atoms of sodium (Na) combine with one molecule of chlorine (cI2), which of the following could be the product?
enyata [817]
2Na + Cl2 ----> 2NaCl 
  .: product have to be " 2NaCl "  
 
7 0
3 years ago
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A Grignard reagent is prepared by reacting cyclopentanol with first thionyl chloride and then magnesium in ether. The Grignard r
erastova [34]

Answer:

Grignard reagent is a chemical compound having a halogen group along with magnesium and organic group.

Explanation:

When cyclopentanol reacts with thiogyl chloride, it gives chlorocyclopentane as the product which on further reaction with magnesium metal gives Grigmard reagent as the main product.

A Grignard reagent is a chemical compound which have the chemical formula of R−Mg−X. Here, R is an organic group, Mg is magnesium and X is halogen. The organic group may be aryl or alkyl.

The reaction and the final product is given below at the attachment.

6 0
3 years ago
When heated, calcium carbonate decomposes according to the equation given below:
Ahat [919]

Answer:

15.2L at STP

Explanation:

Given reaction expression;

         CaCO₃ → CaO + CO₂

Number of moles of CaCO₃  = 0.68mol

Unknown:

Volume of CO₂ produced at STP = ?

Solution:

To solve this problem, we must first find the number of moles CO₂ produced,

     1 mole of CaCO₃ will produce 1 mole of CO₂

   0.68mole of CaCO₃ will produce 0.68mole of CO₂ at STP

Now;

             1 mole of gas occupies a volume of 22.4L at STP;

           0.68mole of CO₂ will then occupy 0.68 x 22.4  = 15.2L at STP

8 0
3 years ago
1) 5,730 s to ks
Len [333]

Explanation:

1000 seconds =1ks

5730 seconds=?

5730×1/1000

5.73ks

10mg=1cg

22000mg?

22000×1/10

2200cg

1000ms=1ks

0.077ms=1ks

0.077×1/1000

0.000077ks

cubic metres (m3)

metres (m)

4 0
3 years ago
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What is the balance of 2C2H6<br> + <br> O2<br> → <br> 6H2O<br> + <br> 4CO2
katrin2010 [14]
The balance of the equation is 4c02
4 0
3 years ago
Read 2 more answers
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