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Elenna [48]
2 years ago
13

What are levers used for? (science)

Chemistry
1 answer:
Assoli18 [71]2 years ago
8 0

According to the research, levers are used to modify or generate a force and transmit displacement.

<h3>What are levers?</h3>

It is a simple machine composed of a rigid bar of some moderately resistant material, which rotates freely on a support point.

It can be used to maximize the mechanical force applied to an object, increasing its speed or the distance it travels, by applying a proportionally smaller amount of force.

Therefore, we can conclude that according to the research, levers are used to modify or generate a force and transmit displacement.

Learn more about levers here: brainly.com/question/19732425

#SPJ1

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Which factors would increase the rate of a reaction?
FrozenT [24]

Adding a catalyst would increase the rate of a reaction

3 0
3 years ago
The amino acid methionine can be used as fuel by being converted to succinyl CoA. What would be the estimated ATP yield for the
andre [41]

Answer:

18 molecules of ATP will be produced for the breakdown of methionine to succinyl CoA and the entry of succinyl CoA to the citric acid cycle with no input of glucose.

Explanation:

Reactions                                          reduced co enzymes           ATP formation

α keto glutarate to propionyl CoA      2 NADH                                         6 moles

Succinyl CoA to succinate                                                               2 GTP≈ 2 ATP

Succinate to fumarate                         2FADH2                                      4  moles

Malate to oxaloacetate                        2 NADH                                       6 moles

3 0
3 years ago
Given the propane molecule C3H8(g)! a) What is the balanced equation for the combustion of propane in O2?(20 pts.) b) What is th
lubasha [3.4K]

Answer:

The answer to your question is below

Explanation:

Propane = C₃H₈

Process

1.- Write the chemical reaction

                     C₃H₈  +  O₂   ⇒   CO₂  +  H₂O

balanced chemical reaction

                      C₃H₈  +  5O₂   ⇒  3CO₂  +  4H₂O

               Reactants      Elements     Products

                      3                    C                  3

                      8                    H                  8

                     10                    O                 10

b) Standard enthalpy

Propane                  -104.7 kJ/mol

Oxygen                         0   kJ/mol

Carbon dioxide      -393.5 kJ/mol

Water                      -241.8 kJ/mol

ΔH° = ∑ΔH° products - ∑H° reactants

ΔH° = 3(-393.5) + 4(-241.8) - [(-104.7) + 0]

-Simplification

ΔH° = -1180.5 kJ/mol - 967.2 kJ/mol + 104.7 kJ/mol

ΔH° = - 2042.5 kJ/mol

This reaction is exothermic because ΔH° is negative.

4 0
3 years ago
How much does a gallon of water WEIGH?
elixir [45]
A gallon of water weighs 8.34 pounds
4 0
4 years ago
What mass of iron(III) chloride contains 4.13 1023 chloride ions?
svet-max [94.6K]

Answer:

37.3g

Explanation:

Formula of the compound:

          FeCl₃

Number of chloride ions  =  4.13 x 10²³ ions

 

First find the number of moles in this ions;

         6.02 x 10²³ ions are contained in 1 mole of a substance

         4.13 x 10²³ ions contains \frac{4.13 x 10^{23} }{6.02 x 10^{23} }  = 0.69mole chloride ions

Now;

        3 mole of chloride ions are contained in 1 mole of FeCl₃

       0.69 mole of chloride ions will contain \frac{0.69}{3} = 0.23mole of FeCl₃

To find the mass;

         Mass of FeCl₃ = number of moles x molar mass

 molar mass of FeCl₃ = 55.8 + 3(35.5)  = 162.3g/mol

        Mass of FeCl₃ = 0.23  x  162.3  = 37.3g

     

4 0
3 years ago
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