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3 years ago

All systems have. A. Output and feedback. B. Process and function. C. input,process,and sensors.

Chemistry

2 answers:

zvonat [6]3 years ago

7 0

I think the Answer is C

schepotkina [342]3 years ago

5 0

The correct answer would be option C, Input, Processes and Sensors.

All systems have Input, processes and sensors.

Explanation:

From a perspective of a system, there are certain things that are necessary to run that system. These are Inputs, processes and Sensors.

Inputs are the things that are being put in the system to achieve or get the desired output.

Processes are the procedures that take the input, govern the system according to it and run it as desired.

Sensors are devices that convert non-electrical, physical or chemical quantity into an electrical signal.

Inputs, processes and Sensors, all work together to get the Output for which the system is developed.

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In synthesis reactions, there are always more _____________ than ________________.

nydimaria [60]

Answer:

Explanation:

always more reactants than products

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3 years ago

How much energy is transferred when 30.0 g of water is cooled from 25.0 °C to 12.7 °C.

enot [183]

Answer:

Heat transferred, Q = 1542.42 J

Explanation:

Given that,

Mass of water, m = 30 grams

Initial temperature, $T_i=25^{\circ} C$

Final temperature, $T_f=12.7^{\circ} C$

We need to find the energy transferred. The energy transferred is given by :

$Q=mc\Delta T$

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So,

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So, 1542.42 J of energy is transferred.

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3 years ago

One gallon milk is equal to how many milliliters of milk?

Black_prince [1.1K]

Answer:

3785.411784 mL

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6 0

2 years ago

The depletion of ozone (O3) in the stratosphere has been a matter of great concern among scientists in recent years. It is belie

Deffense [45]

Answer: Nitric oxide is the limiting reagent. The number of moles of excess reagent left is 0.0039 moles. The amount of nitrogen dioxide produced will be 0.7912 g.

Explanation:

To calculate the number of moles, we use the equation

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ ....(1)

For ozone:

Given mass of ozone = 0.827 g

Molar mass of ozone = 48 g/mol

Putting values in above equation, we get:

$\text{Moles of ozone}=\frac{0.827g}{48g/mol}=0.0172mol$

For nitric oxide:

Given mass of nitric oxide = 0.635 g

Molar mass of nitric oxide = 30.01 g/mol

Putting values in above equation, we get:

$\text{Moles of nitric oxide}=\frac{0.635g}{30.01g/mol}=0.0211mol$

For the given chemical equation:

$O_3+NO\rightarrow O_2+NO_2$

By Stoichiometry of the reaction:

1 mole of ozone reacts with 1 mole of nitric oxide.

So, 0.0172 moles of ozone will react with = $\frac{1}{1}\times 0.0172=0.0172moles$ of nitric oxide

As, given amount of nitric oxide is more than the required amount. So, it is considered as an excess reagent.

Thus, ozone is considered as a limiting reagent because it limits the formation of product.

Amount of excess reagent (nitric oxide) left = 0.0211 - 0.0172 = 0.0039 moles

By Stoichiometry of the reaction:

1 mole of ozone produces 1 mole of nitrogen dioxide.

So, 0.0172 moles of ozone will react with = $\frac{1}{1}\times 0.0172=0.0172moles$ of nitrogen dioxide

Now, calculating the mass of nitrogen dioxide from equation 1, we get:

Molar mass of nitrogen dioxide = 46 g/mol

Moles of nitrogen dioxide = 0.0172 moles

Putting values in equation 1, we get:

$0.0172mol=\frac{\text{Mass of nitrogen dioxide}}{46g/mol}\\\\\text{Mass of nitrogen dioxide}=0.7912g$

Hence, nitric oxide is the limiting reagent. The number of moles of excess reagent left is 0.0039 moles. The amount of nitrogen dioxide produced will be 0.7912 g.

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3 years ago

15. Which characteristic of a substance will NOT

Andrej [43]

Boiling point. Hope this helps

5 0

2 years ago