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PilotLPTM [1.2K]
2 years ago
9

An unknown element is shiny and is found to be a good conductor of electricity, what other properties would you predict for it

Chemistry
1 answer:
VLD [36.1K]2 years ago
3 0
That it is hard, and a metal? 
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The key enzyme in the regulation of the citric acid cycle is:.
bixtya [17]

The key enzyme in the regulation of the citric acid cycle is citrate synthase. It functions in the mitochondria.

<h3>Citrate synthase and cellular respiration </h3>

Cellular respiration is a series of reactions that produce ATP by using the energy stores in the chemical bonds of foods.

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Citrate synthase is an enzyme found in the mitochondrial matrix, which is involved in the citric acid cycle.

Learn more about cellular respiration here:

brainly.com/question/2809259

3 0
2 years ago
7. List things that have LOTS of kinetic energy, and tell why.
vlabodo [156]

Answers: -

For high kinetic energy, the object must have high speed of movement.

1) An airplane has a lot of kinetic energy. Airplanes move at high speed and thus posses a lot of kinetic energy.

2) A bullet from a gun has a lot of kinetic energy due to the high speed of bullet.

3) A formula one car moving at high speeds have a lot of kinetic energy.

4) A train moving at high speed has lots of kinetic energy.

5) An asteroid has a lot of kinetic energy due to it's high speed.

6) A roller coaster moving at high speeds have a lot of kinetic energy.

7) A missile fired from a fighter plane has lots of kinetic energy.

7 0
3 years ago
The mineral enargite is 48.41% cu, 19.02% as, and 32.57% s by mass. what is the empirical formula of enargite?
LuckyWell [14K]
Empirical formula is the simplest ratio of whole numbers of components in a compound. 
Assuming for 100 g of the compound 
                                Cu                                 As                             S
mass                      48.41 g                          19.02 g                      32.57 g
number of moles    48.41 / 63.5 g/mol      19.02 / 75 g/mol        32.57 / 32 g/mol 
                                = 0.762 mol                = 0.2536 mol            = 1.018 mol 
divide by the least number of moles 
                               0.762 / 0.2536             0.2536 / 0.2536         1.018 / 0.2536
                               = 3.00                          = 1.00                         = 4.01
once they are rounded off 
Cu - 3
As - 1
S - 4
therefore empirical formula is Cu₃AsS₄
8 0
3 years ago
Read 2 more answers
What element is reduced in the following reaction?
riadik2000 [5.3K]
 the oxidation states of the elements before and after the reaction is;
Pb oxidation state changes from 0 to +2
SO₄²⁻ ion there's no change in the oxidation state during the reaction
Au oxidation state changes from +3 to 0
reduction reactions are when there's a decrease in the oxidation state of the species 
oxidation reactions are when theres an increase in the oxidation state of the species 
the element where there's a decrease in oxidation state is Au. 
Therefore Au gets reduced.
answer is B) Au
6 0
3 years ago
Which of the following represents the relative charge of proton
Snowcat [4.5K]
You’ve not put anything below so I’m not sure what the options are but the relative charge of a proton is +1
8 0
2 years ago
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