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katrin [286]
3 years ago
14

What is a supercontinent? please help me!

Chemistry
1 answer:
oee [108]3 years ago
7 0

Answer:

earth land assembling together to form single large landmass

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Rust is formed by the interaction of iron and oxygen. When rust formed on an iron nail with a mass of 100g,the mass of the ruste
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43g id say. Due to conservation of mass that is the only one that makes even slight sense. If you had more air react then the nail would heavier
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3 years ago
What is required to know the velocity of an object
Andreyy89

Answer:

n order to find the velocity of the moving object, you will need to divide the change in position by the change in time. Specify the direction moved, and you have the average velocity

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The following three questions refer to baseball:
Archy [21]
Input of energy: swinging
Output of energy: hitting
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4 0
3 years ago
According to the following reaction, how many grams of chloric acid (HClO3) are produced in the complete reaction of 31.6 grams
gogolik [260]

Answer:

m_{HClO_3}=12.7gHClO_3

Explanation:

Hello,

Considering the reaction:

3Cl_2(g)+3H_2O(l)-->5HCl+HClO_3

The molar masses of chlorine and chloric acid are:

M_{Cl_2}=35.45*2=70.9g/mol\\M_{HClO_3}=1+35.45+16*3=84.45g/mol

Now, we develop the stoichiometric relationship to find the mass of chloric acid, considering the molar ratio 3:1 between chlorine and chloric acid, as follows:

m_{HClO_3}=31.6gCl_2*\frac{1molCl_2}{70.9gCl_2} *\frac{1molHClO_3}{3mol Cl_2} *\frac{85.45g HClO_3}{1mol HClO_3} \\m_{HClO_3}=12.7gHClO_3

Best regards.

4 0
3 years ago
Why does hydrogen have a -1 oxidation state in the compound NaH?
ruslelena [56]

your answer will be :

B. <u>Na has a lower</u> <u>electronegativity than H</u>

because Na belongs to alkali metals which are least electronegative (most electro positive) but hydrogen is a non metal, it has higher electronegativity as compared to metals like Sodium (Na).

6 0
3 years ago
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