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Sophie [7]
3 years ago
12

How much forces is needed to accelerate a 3 kg skateboard at 5 m/s2?

Chemistry
1 answer:
Ghella [55]3 years ago
3 0

Answer:

15 kg

Explanation:

happy to help:)

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stellarik [79]

Answer:

look up chemical board it will help you

Explanation:

6 0
3 years ago
Henok is observing the reaction rate of a chemical reaction. He then adds a catalyst to the reaction.
tia_tia [17]
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4 0
3 years ago
A saturated solution of manganese(II) hydroxide was prepared, and an acid–base titration was performed to determine its KspKsp a
trapecia [35]

Answer:

10.945 x 10^-4

Explanation:

Balanced equation:

Mn(OH)2 +  2 HCl  -->  MnCl2  +  H2O

it takes 2 moles HCL for each mole Mn(OH)2

Next find the molarity of the Mn(OH)2 solution

= (1 mole Mn(OH)2 / 2 mole HCl)  X (0.0020 mole HCl / 1000ml) X (4.86 ml)    

= 4.86 x 10^-3 mole  

this is now dissolved in (70 + 4.86)  =  74.86 ml or 0.07486 L

thus [Mn(OH)2]  =  4.86 x 10^-3 mole / 0.07486 L  =  0.064921 M

Ksp =  [Mn2+][OH-]^2  =  4x^3  =  4(0.064921)^3  = 10.945 x 10^-4

6 0
3 years ago
Plz I need help on this Science question I don’t understand
sashaice [31]

Answer:

A

Explanation:

isjshsjsussibs8sjbs

7 0
2 years ago
Which of the following is true about nuclear fusion
Sonja [21]

Answer:

 i would assume that it would be (a)

Explanation:

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mass gets lost is nuclear fusion

so (a) is the most accurate

4 0
3 years ago
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