All categories

2 years ago

I really need help, i don’t understand this at all

Chemistry

1 answer:

kirill [66]2 years ago

6 0

Answer:

CaO - inorganic

C₂H₄(OH)₂ - organic

Ca(OH)₂ - inorganic

CH₄ - organic

NaCl - inorganic

C₃H₈ - organic

Explanation:

Organic compounds have carbon (C) in it.

For example, CaO has calcium and oxygen, but no carbon so it's an inorganic compound. However, C₂H₄(OH)₂ does have carbon, making it an organic compound.

You might be interested in

Is garlic powder a pure substance

CaHeK987 [17]

Answer: most store-bought isnt

Explanation:

there typically a lot of addivitves

8 0

3 years ago

Stars are made of:<br> solids<br> plasmas<br> liquids<br> gases

vesna_86 [32]

Answer:

Hi there!

Your answer is:

D. Gases

Explanation:

Stars are mass balls of hydrogen and helium! Both gases

Hope this helps

8 0

3 years ago

Read 2 more answers

What type of substance is steel

MrRa [10]

Answer: steel is an alloy of carbon and iron

Explanation:

4 0

3 years ago

Read 2 more answers

What percentage of all winter weather related injuries are from freezing precipitation?

Svet_ta [14]

<span>20%. By forming an iceglaze over the surfaces, freezing precipitation accounts for 20% of all winter weather related injuries in the United States. When the freezing precipitation leads to accumulation of 0.25 inch ice, it is known as Ice storm.</span>

5 0

3 years ago

HELLPPPPP 5th grade math

irakobra [83]

Energy inputs, outputs and losses are summarized below:

Input - Chemical energy/Output - Luminous energy/Losses - Hystheresis-related dissipation.
Input - Fluid energy, heat/Output - Translational mechanical energy/Losses - Waste energy.
Input - Translational mechanical energy/Output - Rotational mechanical energy/Losses - Friction-related work.
Input - Electric energy/Output - Translational and rotational mechanical energy/Losses - Power dissipation, drag-related work.
Input - Translational and rotational mechanical energy/Output - Translational mechanical energy/Losses - Friction-related work, drag-related work.
Input - Fluid energy, heat/Output - Translational and rotational mechanical energy/Losses - Waste energy, friction-related work and drag-related work.

<h2>Procedure - Application of the principle of energy conservation</h2><h2 /><h3>Introduction</h3><h3 />

In this question we must apply the definition of the principle of energy conservation to each case, understanding what kind of <em>energy</em> inputs ( $E_{in}$ ) and outputs exists ( $E_{out}$ , $E_{loss}$ ).

We proceed to apply a simplified scheme, on the assumption that each system works at <em>steady</em> state, in which we shall construct each answer:

$E_{in} - E_{out} - E_{l} = 0$ (1)

Where:

$E_{in}$ - Energy input.
$E_{out}$ - Energy output.
$E_{l}$ - Energy losses.

<h3>Case analysis</h3>

Now we proceed to summarize the inputs, outputs and losses for each case:

<h3><em>Flashlight</em></h3>

Input - Chemical energy (battery)/Output - Luminous energy (screen)/Losses - Hystheresis-related dissipation (battery)

<h3><em>Hot air balloon</em></h3>

Input - Fluid energy (fuel), heat (ignition)/Output - Translational mechanical energy (Buoyancy force)/Losses - Waste energy (smog)

<h3><em>Water wheel</em></h3>

Input - Translational mechanical energy (water flow)/Output - Rotational mechanical energy (wheel)/Losses - Friction-related work (bearings, etc)

Input - Electric energy (current)/Output - Translational and rotational mechanical energy (wind)/Losses - Power dissipation (AC engine/cables), drag-related work (interaction between air and fan)

<h3><em>Hitting a golf ball</em></h3>

Input - Translational and rotational mechanical energy (arm)/Output - Translational mechanical energy (ball)/Losses - Friction-related work (Human body, interactions between player and ball), drag-related work (interactions between ball and air)

<h3><em>Motorcycle</em></h3>

Input - Fluid energy (fuel), heat (ignition)/Output - Translational and rotational mechanical energy (motorcycle and driver)/Losses - Waste energy (smog), friction-related work (interaction between tires and ground) and drag-related work (interactions between driver, motorcycle and surrounding air)

To learn more on energy conversion, we kindly invite to check this verified question: brainly.com/question/11234965

5 0

2 years ago