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2 years ago

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A student reads that sodium atoms (Na) react with chlorine (Cl2) molecules to form the compound sodium chloride (NaCl). Which mo

del should the student make to satisfy the Law of Conservation of Matter for the formation of sodium chloride, in simplest form?

2 answers:

Studentka2010 [4]2 years ago

7 0

Answer:

c

Explanation:

aniked [119]2 years ago

4 0

Answer:

lol

Explanation:

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Arrange the forms of electromagnetic radiation in order of decreasing energy (from highest energy to lowest energy). You are cur

solmaris [256]

Answer:

gamma rays > X-rays > ultraviolet radiation > visible light > infrared > radio waves.

Explanation:

Electromagnetic waves are those waves that require no material medium for propagation. They can travel through space and they all move at the speed of light.

Electromagnetic waves are composed of both electric and magnetic fields which are mutually at right angles to each other.

The order of decreasing energy of electromagnetic waves is;

gamma rays > X-rays > ultraviolet radiation > visible light > infrared > radio waves.

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2 years ago

1(30%). A thin plate black body, insulated at the bottom is placed faced up in a room with wall temperatures of 30 C. Air at 0 C

ch4aika [34]

Explanation:

The given data is as follows.

Heat transfer coefficient (h) = 12 $W/m^{2}.C$

Plate temperature ( $T_{1}$ ) = $30 ^{o}C$ = 303 K

Steady state temperature ( $T_{2}$ ) = ?

Hence, formula applied for steady state is as follows.

$(h \times A \times \Delta T)_{air}$ = $\sigma \times A \times (T^{4}_{1} - T^{4}_{2})_{plate}$

Putting the given values into the above formula as follows.

$(h \times A \times \Delta T)_{air}$ = $\sigma \times A \times (T^{4}_{1} - T^{4}_{2})_{plate}$

$12 \times (T_{2} - 273)$ = $5.67 \times 10^{-8} \times [(30 + 273)^{4} - T^{4}_{2}]$

$T_{2}$ = 282.66 K

= (282.66 -273) $^{o}C$

= 9.66 $^{o}C$

Thus, we can conclude that the steady state temperature will be 9.66 $^{o}C$ .

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3 years ago

What is the name for the compound formed between nitrogen and magnesium. (show your work)

astra-53 [7]

Answer:

the compound formed between nitrogen and magnesium is Magnesium Nitride

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2 years ago

How do you find concentration from absorbance mg and ml?

sweet-ann [11.9K]

Great question, let me know if you get the anwser!

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3 years ago

One atomic model describes electrons moving in clouds around the nucleus.

bixtya [17]

Answer: D. It is the currently accepted atomic model.

Explanation:

It is the mordern atomic model, also known as the Electron Cloud Model. Indicating that the nucleus of an atom is surrounded by a cloud of electrons.

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3 years ago