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Pavel [41]
3 years ago
6

Insects interact with other living organisms carrying pollen and diseases true or false

Chemistry
1 answer:
MA_775_DIABLO [31]3 years ago
3 0

Answer:

True

Explanation:

Because of a mosquito, for example, they carry diseases they  interact with other organisms.

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38- List the atomic number and name the element, whose electron configuration
strojnjashka [21]

Answer:

Atomic Number - 11. Sodium

5 0
3 years ago
When hydrogen and oxygen combine to form water, which term is used to describe the water? A. product B. reactant C. catalyst D.
Allushta [10]
A. product


Hope it helps.........:)
3 0
3 years ago
Read 2 more answers
In a room full of air, the air is mainly composed of Nitrogen and Oxygen molecules (both at room temperature). Find (to two sign
zloy xaker [14]

Explanation:

Expression for the v_{rms} speed is as follows.

            v_{rms} = \sqrt{\frac{3kT}{M}}

where,   v_{rms} = root mean square speed

                     k = Boltzmann constant

                    T = temperature

                    M = molecular mass

As the molecular weight of oxygen is 0.031 kg/mol and R = 8.314 J/mol K. Hence, we will calculate the value of v_{rms} as follows.

               v_{rms} = \sqrt{\frac{3kT}{M}}

                            = \sqrt{\frac{3 \times 8.314 J/mol K \times 309.02 K}{0.031 kg/mol}}

                            = 498.5 m/s

Hence, v_{rms} for oxygen atom is 498.5 m/s.

For nitrogen atom, the molecular weight is 0.028 kg/mol. Hence, we will calculate its v_{rms} speed as follows.

                v_{rms} = \sqrt{\frac{3kT}{M}}

                              = \sqrt{\frac{3 \times 8.314 J/mol K \times 309.92 K}{0.028 kg/mol}}

                              = 524.5 m/s

Therefore, v_{rms} speed for nitrogen is 524.5 m/s.

3 0
3 years ago
The calorimeter pictured below shows the final temperature after calcium chloride was added to water. (The initial temperature w
max2010maxim [7]
It’s probably D or c
3 0
3 years ago
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Calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these
deff fn [24]
The formation of nitric acid from nitrogen, hydrogen, and oxygen can be written as,

     N₂ + H₂ + 3O₂ --> 2HNO₃

The net enthalpy of formation of nitric acid is calculated by,
   Hrxn = Hproduct - Hreactant

Since all the reactants are in their elemental forms, the simplified equation would be,

    Hrxn = Hproduct 

Substituting,

    Hrxn = (-186.81 kJ/mol)(2 mols)

<em>Answer: -372.42 kJ</em>

7 0
3 years ago
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