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Damm [24]
3 years ago
5

What is hydroponics

Chemistry
1 answer:
Aliun [14]3 years ago
4 0

Answer:

Explanation:

Hydroponics is the process of growing crops using only water and liquid fertilizer. This process is great when your in the big city.

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Which would be best categorized as heat transfer by convection? Noodles rising and falling in a pot of boiling water Touching a
Natasha_Volkova [10]
I would say that the best answer would he noodles rising and falling in a pot of boiling water. The definition of convection is movement caused by fluids 'boiling water' and dense material 'noodles' rise when and sink due to gravity which results in a heat transfer. I hoped this helped.
5 0
3 years ago
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What is the value of k for this aqueous reaction at 298 k?
TEA [102]

Answer : The complete question is attached in answer.

The value of K will be = 2 X10^{-5}


Explanation : We can use the formula as;


∆G = -RT ln K


on rearranging we get, K = e^({-deltaG/RT})

Therefore, we get,

∆G/RT = (26.81 kJ/mol ) / (0.008314 kJ/mol-K) X (298K) = 10.82


So, K = e^{-10.82}

Therefore, K = 2 X 10^{-5}

5 0
3 years ago
Which part of the organ of the digestive system absorbs nutrients from digested food
trasher [3.6K]
I believe it is the mechanical organ.
3 0
3 years ago
Which of these elements is a transition metal?
sergejj [24]
Your answer would be chromium (Cr)
3 0
3 years ago
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2,000 kJ worth of heat is absorbs by each of the following objects. Which object will experience the smallest temperature change
Marta_Voda [28]

The question has missing information! But, with the objects and their respectives masses and specific coefficiets and with the following explanation, the question can be aswered!

Answer:

The one which has the highest product of the mass by specific heat.

Explanation:

The heat is a way of "energy in motion", which means that is a way that energy can be exchanged between substances. This exchange occurs when there is a difference in the temperature of the substances that are in contact, and then, to achieve thermal equilibrium, one substance loses heat (the one with higher temperature) and had a decrease in temperature, and the other gain heat and had an increase of temperature.

The heat loss is the same heat gained, and it can be calculated. If the substance doesn't suffer a physical change (which is the case here), then:

Q = m*c*ΔT

Where Q is the heat, c is the specific heat, and ΔT is the temperature change. So, rearranged the expression:

ΔT = Q/(m*c)

Because Q is the same for all of the objects, the one that will experience the smallest temperature change is the one that has the highest value of m*c (because it is indirectly proportional to ΔT).

4 0
3 years ago
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