3 years ago

----------------Select all that apply.-------------------

1 answer:

6 0

distinguishable components
components in varying proportions
particles that may settle

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Hydrazine (N₂H₄), a rocket fuel, reacts with oxygen to form nitrogen gas and water vapor. The reaction is represented with the e

Vinvika [58]

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Moles of O_2

4.2/22.4
2.1/11.2
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2(0.19)
0.38mol

Volume of water

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8.512L

8 0

2 years ago

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The next three (3) problems deal with the titration of 361 mL of 0.501 M carbonic acid (H2CO3) (Ka1 = 4.3 x 10-7, Ka2 = 5.6 x 10

professor190 [17]

Answer:

Explanation:

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3 years ago

What is the identity of a 100. g sample of metal that, upon absorbing 4680 J of heat, increases in temperature by 52.0°C?

krok68 [10]

The metal is aluminium

Explanation:

Given:

Heat, q = 4680 J

Mass, m = 100g = 0.1kg

ΔT = 52°C

sample = ?

We know:

q = mcΔT

On substituting the value we get:

$4680 = 0.1 X c X(52)\\\\c = \frac{4680}{5.2} \\\\c = 900 J/Kg^oC$

Thus, the metal is aluminium which has a specific heat capacity of 900 J/kg°C

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3 years ago

If the H+ ion concentrati on in an aqueous solution is 0.0010 M, why is it not possible for the OH− ion concentration to be 1.0

spayn [35]

Answer:

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Explanation:

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3 years ago

Using the formula velocity = distance/time, how fast does sound travel in air at 20 degrees C given a distance of 500 m and 3.92

mixas84 [53]

Answer:

B : 127m/s

Explanation:

= 500 ÷ 3.92

= 127.5

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3 years ago