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3 years ago

Water condenses onto grass in the early morning when the air is clear because...

2 answers:

8 0

The answer is b i know what courses you are taking and i can remember it clearly saying in the morning when there is small droplets on the grass and leaves on the trees it is a result of the air close to the ground cooling to the dew point. (I also just took the test and got this question right).

kompoz [17]3 years ago

4 0

The answer is b because as the air gets cooler and the moist in the air will drop as we call it dew

You might be interested in

Ionic bonds happened between?

Leni [432]

Answer:

$\large \boxed{\sf metal \ and \ non \ metal}$

Explanation:

Ionic bond is a bond between metals and non-metals with strong forces of attraction between charged ions.

5 0

2 years ago

I'm not 100% sure of the answer. Explanations are highly appreciated.

PolarNik [594]

Answer:

The correct answer is

$\Delta H=2(1072)+498 -4(799)$

Explanation:

Enthalpy of reaction :

It is the amount of energy released/absorbed when one mole of the substance is formed from the reactant at a constant pressure.

The enthalpy of a reaction can be calculated using :

$\Delta H=\Delta H_{reactants}-\Delta H_{products}$

$2CO+O_{2}\rightarrow 2CO_{2}$

$\Delta H_{reactants}=2(C\equiv O)+O=O$

$\Delta H_{reactants}=2(1072)+498$

$H_{products}=2(2\times C=O)$

$H_{products}=4\times 799$

$\Delta H=\Delta H_{reactants}-\Delta H_{products}$

$\Delta H=2(1072)+498 -4(799)$

$units = \frac{kJ}{mole}$

Please note that :

The carbon monoxide , CO should be taken as C triple bond O. Not C=O .

So , the bond energy =1072 is used

$\Delta H=2(1072)+498 -4(799)$

8 0

3 years ago

If you add a solution of NaOH to a solution of H₂CO₃, two reactions occur, one after the other. Write the chemical equations for

Crazy boy [7]

We have a solution of NaOH and H₂CO₃

First, NaOH will dissociate into Na⁺ and OH⁻ ions

The Na⁺ ion will substitute one of the Hydrogen atoms on H₂CO₃ to form NaHCO₃

The H⁺ released from the substitution will bond with the OH⁻ ion to form a water molecule

If there were to be another NaOH molecule, a similar substitution will take place, substituting the second hydrogen from H₂CO₃ as well to form Na₂CO₃

6 0

2 years ago

Help me balence: ___ H2 + ___ O2----> _____ H20

luda_lava [24]

Explanation:

2H2+O2------->2H2O

its yr balanced equation.

hope it helps

<h2>stay safe healthy and happy....</h2>

6 0

3 years ago

Which one of the following describe chemical properties? check all that apply. -water freezes at 0 degrees C. -sugar burns in ai

uysha [10]

I think the correct answer from the choices listed above is option C. The process that describes a chemical property of a substance is that when <span>sugar burns in air to form water and carbon. Hope this answers the question. Have a nice day.</span>

8 0

3 years ago