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3 years ago

Which physical property do plasmas and gases have in common?

2 answers:

8 0

<span>They both have charged particles
They have the same attractive forces between particles
They have the same space between particles
They create magnetic and electric fields</span>

kogti [31]3 years ago

8 0

one sec I know awnser

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What volume would 8.01×1022 molecules of an ideal gas occupy at STP?

Nataly_w [17]

Explanation:

$8.01 \times {10}^{22} \times \frac{1}{6.02 \times {10}^{23} } \times \frac{22.4}{1} = 2.9804$

5 0

3 years ago

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. In

Scorpion4ik [409]

Answer:

The net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide is -470.4 kJ/mol.

Explanation:

Step 1 : Calcium carbide and water react to form acetylene and calcium hydroxide

$CaC_2(s)+2H_2O(g)\rightarrow$

$C_2H_2(g)+Ca(OH)_2(s),\Delta H_1=-414 kJ$ ..[1]

Step 2 : Acetylene, carbon dioxide and water react to form acrylic acid

$6C_2H_2(g)+3CO_2(g)+4H_2O(g)\rightarrow 5CH_2CHCOOH(g),\Delta H_2=132 kJ$ ..[2]

Using Hess's law:

[1] × 6 + [2]

$6CaC_2(s)+16H_2O(g)+3CO_2\rightarrow 5CH_2CHCOOH(g)+6Ca(OH)_2(s),\Delta H_3=?$

$\Delta H_3=6\times \Delta H_1+\Delta H_2$

$\Delta H_3=6\times (-414 kJ)+132 kJ=-2352 kJ$

The energy released on formation of 5 moles of acrylic acid = -2352 kJ

The energy released on formation of 1 moles of acrylic acid :

$=\frac{-2352 kJ}{5 mol}=-470.4 kJ/mol$

Hence, the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide is -470.4 kJ/mol.

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3 years ago

How many moles of iron is 3.011 x 10^27 atoms of iron? Please show work if possible

Alisiya [41]

Answer:

...

Explanation:

The simple unit conversion tool which helps you to convert atoms to moles or moles to atoms units. Unit Conversion – Moles to Atoms. Atom. Mole. Formula: Mole = Atom * 6.0221415E+23 ... not as 1.8051

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2 years ago

A 50 kg object _____.

stich3 [128]

Answer:

will have more mass the moon than the earth

Explanation:

hope this helps

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3 years ago

Is acid rain a global or a regional concern ?

notsponge [240]

Explanation:

Acid rain is linked to both natural and man-made sources. Nitrogen oxides are formed through the extreme heating of air when a thunderstorm produces lightning. ... For this reason, acid rain is considered a global problem

6 0

3 years ago

Read 2 more answers