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Leni [432]
3 years ago
9

D) 7

Chemistry
1 answer:
liberstina [14]3 years ago
5 0

Answer:

the reactants and products have have exactly the same molecules

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The Germans were the first to send up a satellite into space.
vladimir2022 [97]

Answer: Thats false the Russians were the first

Explanation:

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Which product of prime polynomials is equivalent to 36x3 – 15x2 – 6x?
monitta
The product of prime polynomials is equivalent to 36x3 – 15x2 – 6x is letter B which is 3x(3x – 2)(4x 1). Below is the solution. 

3x(3x - 2) (4x + 1)
= 9x2 - 6x (4x + 1)
= 36x3 + 9x2 + -  24x2 - 6x
= 36x3 - 15x2 - 6x
       
3 0
3 years ago
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How many liters of hydrogen gas are formed from the complete reaction of 1.04 mol of C? Assume that the hydrogen gas is collecte
Alisiya [41]

The volume is 2.23 liters of hydrogen gas.

<u>Explanation</u>:

                  moles of C = grams / molecular mass of C

                                     = 1.04 g / 12.011 g/mol.

                                     = 0.086

        The ratio between C and H2 is 1 : 1

                 moles H2 = 0.086

                               V = nRT / p

                                  = 0.086 x 0.08206 x 316 K / 1.0 atm

                              V  = 2.23 L.

8 0
3 years ago
Why are outer electrons of some substances able to be removed by friction?
svlad2 [7]
<span>The outer electrons are not as tightly bound as ones closer to the nucleus</span>
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After careful analysis, an electromagnetic wave is found to have a frequency of 7.8 x 10^6 Hz. What is the speed of the wave?
damaskus [11]

Answer:

 

Explanation:

4 0
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