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lorasvet [3.4K]
3 years ago
11

I need help ASAP! I will mark brainiest to whoever is right .

Chemistry
1 answer:
NikAS [45]3 years ago
5 0

Answer:

iwan loptop di ba yan isearch mo nalang

Explanation:

baka lang ka naman makakita ng swerte na aswers

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How many grams of oxygen can be obtained from 250. grams of KCIO3?
guapka [62]

Answer:

Keep it simple. If all the oxygen contained in the 200 grams of potassium chlorate is produced in the decomposition, then all we have to do is find out how many grams of oxygen are there in the 200 grams. This we can do by calculating the ratio of oxygen mass to the whole. Using 39.1 for potassium, 35.45 for chlorine and 3 times 16, or 48 for the oxygen, we get a total of 122.55 grams per mole for potassium chlorate, of which 48 grams are oxygen. This ratio is 48/122.55. This ratio times the original 200 grams of the compound, gives us 78.34 grams of oxygen produced.

Explanation:

3 0
2 years ago
Which sequence correctly describes the flow of genetic information in a cell?
Blababa [14]
A.
Proteins → RNA → DNA 
I think.. 

<span>Hope this helps. c:</span>

5 0
3 years ago
Read 2 more answers
Argon gas has a boiling point of -197 °C. Which of the following diagrams best represents the
Paha777 [63]

Answer:

(a)

Explanation:

Hello,

In this case, the temperature required to boil argon, it means, transform it from liquid to gas is -197 °C. In such a way, since the temperature inside the steel sphere is -190 °C, which is greater than the boiling point, we realize argon is gaseous, therefore, the molecules will be spread inside the sphere as they will be moving based on the kinetic theory of gases.

For that reason, answer is scheme (a).

Best regards.

6 0
3 years ago
Which of the following statements is true? Choose one: A. Bronze was used as early as 4000 B.C.E. to replace less-desirable iron
Verizon [17]

Answer:

B.Bronze is harder than copper, so it retains a cutting edge sharper than that of copper.

Explanation:

The importance of bronze in the history of the human kind can not be only measured in the durability but the help that it provided to our ancestors, the things they were allowed to do once they dicovered how to mold it, and the tools that they produced and made many every day tasks easier for them and the ability of bronze to mantain the cutting edge longer than copper was one of the main reasons why it took its places in the fabrication of many tools.

4 0
3 years ago
If a beaker of water and a beaker of acetic acid are at the same elevated temperature, which will cool more quickly to room temp
WINSTONCH [101]
Beaker of water i guess because usually at home when i get out cold water i put in my room and it cools fast for me so..... i think
3 0
3 years ago
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