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katrin2010 [14]
3 years ago
12

CH4 --> C + H2 synthesis O decomposition O single displacement double displacement KBr + Cl2 --> KCL + Br24​

Chemistry
1 answer:
Elza [17]3 years ago
3 0

Answer:

1 3 4 (I may be wrong!) .................

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An ice cube at 0 degrees Celsius is heated until it melts and the water reaches 20 degrees Celsius. The amount if heat needed fo
Troyanec [42]

Answer:

20 i guess

Explanation:

4 0
3 years ago
Which formula represents an organic compound?cah2c4h8h2o2p2o5?
Dmitry_Shevchenko [17]
Answer is: C₄H₈.
C₄H₈ is hydrocarbon, organic compound<span> consisting only of carbon and hydrogen.
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3 0
3 years ago
Calculate the moles of 336 L of carbon dioxide gas (CO2) at STP.
fenix001 [56]

Answer:

14.99 mols of CO2

Explanation:

STP= 273 k , 1 atm , .0821 gas constant

N=PV/RT

N= 1x336/.0821x273

14.99 mols of CO2

659.6 grams of CO2

8 0
3 years ago
303 K into °C <br>How To convert 303 K into °C​
irga5000 [103]

Answer:

29.85°C

Explanation:

0°K is absolute zero.  That is is same as -273.15°C.

To find C, subtract 273.15 from the temperature in °K.

303K - 273.15°C = <em><u>29.85°C</u></em>

5 0
3 years ago
A very new item just arrived in the market. It is very good for construction, and other things. Now, this item has chemicals, an
VMariaS [17]

Answer: 4,000 grams of NaCI

Explanation:

We know that there are 400g of NaCI in one drop.

This bottle has 10 drops of this item.

So, we have to multiply the amount of NaCI in a drop by the amount of drops.

400 x 10 = 4,000.

The answer to the question is 4,000. Hope this helps!

6 0
3 years ago
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