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BabaBlast [244]
3 years ago
8

What is the kinetic energy of a 100-kg object that is moving with a speed of 12.5 m/s?

Chemistry
2 answers:
miss Akunina [59]3 years ago
8 0
Becasue KE= 1/2 mv squared

KE= 1/2 (100) 12.5 sqaured 
             50           156.25 =

                     7812.5 < is your answer 

Hopefully that makes sense and i did the math right.... 
solong [7]3 years ago
5 0
7,812.5 Joules hope thats right...if it is can you tell me
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Jorge is sitting on a couch. Gravity exerts a downward force on him. Based on Newton's law of action-reaction, the other force a
adoni [48]
A because I had got it right
8 0
2 years ago
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The reaction between iron(II) oxide and carbon monoxide produces iron and carbon dioxide. How many moles of iron can be obtained
aleksandrvk [35]

Answer:

1.5 moles of Fe produced.

Explanation:

Given data:

Moles of FeO react = 1.50 mol

Moles of iron produced = ?

Solution:

Chemical equation:

FeO + CO       →       Fe + CO₂

Now we will compare the moles of ironoxide with iron.

                           FeO          :           Fe

                              1             :             1

                             1.5           :           1.5

Thus from 1.5 moles of FeO 1.5 moles of Fe are produced.                                    

5 0
3 years ago
How to determine reaction order in reactant?
Artyom0805 [142]
In order to determine, Order of reaction, we have to add all the exponents written in the Chemical form, on the Reactant species.

Hope this helps!
8 0
3 years ago
A compound is 54.53% c, 9.15% h, and 36.32% o by mass. what is its empirical formula? the molecular mass of the compound is 132
Yakvenalex [24]
 <span>First - you need the empirical formula. 

So, assume you have 100 g of the compound. 

If so, you'll have 54.53 gram of C, 9.15 g of H and 36.32 g of O. Find the number of moles of each. 

54.53 g C (1 mole C / 12.01 g C) = 4.540 

9.15 g H (1 mole H / 1.008 g H) = 9.077 

36.32 g O (1 mole O / 15.9994 g O) = 2.270 

Take the smallest number found and divide the others by it to get the empirical formula. 

4.540/2.270 = 2. 
9.077/2.270 = 4. 
2.270/2.270 =1. 

So, that gives you the empirical formula of C2H4O. 

Find the weight of this compound. C = 12, H = 1, O = 16. So, C2H4O is 44 amu. 

132/44 = 3. 

So, 3 (C2 H4 O) = C6H12O3 = molecular formula.</span>
6 0
3 years ago
2 points
777dan777 [17]

Answer:

glucose and oxygen

Explanation:

Glucose and oxygen are needed for cellular respiration to occur:)

4 0
3 years ago
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