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inessss [21]
3 years ago
5

Which of these is an acid. PLSSS I NEED DIS NOW!

Chemistry
2 answers:
andreyandreev [35.5K]3 years ago
6 0

Vinegar is a liquid consisting of about 5–20% acetic acid(CH3<span>COOH),

</span>Sodium hydroxide<span> is a strong base. In concentrated form its pH can go up to somewhere in the region of 13-14

</span>The salts produced by the action of ammonia on acids are known as the ammonium salts and all contain the ammoniumion (NH4+). Although ammonia is well known as a weak base, it can also act as an extremely weak acid<span>.



</span>Water<span> acts as a base (accepts H+) when it reacts with a stronger </span>acid<span>, say hydrochloric </span>acid<span>. If the medium </span>is water<span>, </span>water<span>, having a pH of 7, is considered neutral. If the medium is ethanol (or any other solvent), </span>water<span> can be acidic, neutral or basic</span><span>



</span><span>


</span>

nlexa [21]3 years ago
5 0
The answer would be A) vinegar. Vinegar is an acid.
Hope this helps!
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5. Gabi has plans with her friends to go to a concert on her birthday in 4 days. She is so excited that she wants to know how ma
drek231 [11]

Answer:

So she is very anxious because she has to wait 345600 seconds

Explanation:

60 second = 1 minute

60 minute = 1 hour

1 hour has 3600 seconds (60*60)

24 hour = 1 day

3600 second * 24 hours =

1 day has 86400 seconds so in four days

86400 * 4 = 345600

7 0
2 years ago
What is the pH of a 75.0 mL solution that is 0.045 M in weak base and 0.053 M in the conjugate weak acid
noname [10]

Answer:

7.07

Explanation:

HA = weak acid = 0.053

A+ = conjugate base = 0.045

Ka = 7.2x10^-8

Ka = [H+][A-]/HA

7 2x10^-8 = [H+][0.045]/0.053

[H+] = 7.2x10^-8 x 0.053/0.045

= 8.48x10^-8

PH = -log[H+]

= -log[8.48x10^-8]

PH = -[login.48 + log10^-8]

PH = -0.928 - (-8)log10

= 7.07

3 0
3 years ago
Can someone do my homework pls!
Elza [17]

Answer:

Hi, a cheerful teen willing to help,

wishing you a splendiferous day ahead...

Explanation:

1ai. The most dense is Tungsten.

1aii. The least dense is Sodium.

1aiii. The strongest is Tungsten.

1b. All metals conduct electricity.

They are all magnetic except magnetic.

and all solid at room temperature except mercury.

1c. Mercury is a liquid at room temperature.

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7 0
3 years ago
Read 2 more answers
In a vintage science fiction movie, space travelers find themselves on a planet orbiting a distant star in which there are curio
MA_775_DIABLO [31]

Answer:

has 4 electrons in its valence shell.

Explanation:

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1s² 2s²2p⁶ 3s²3p²

Thus, it has 4 electrons in its valence shell (3), likely carbon. So, silicon would have some of the properties of carbon, such as form 4 bonds, and the structure would be similar.

5 0
3 years ago
What are the benefits and drawbacks to having a pouring temperature that is much higher than the metal’s melting temperature?
Mashcka [7]

Answer:

The main advantage would be that with the pouring temperature being much higher, there is very little chance that the metal will solidify in the mould while busy pouring. This will allow for moulds that are quite intricate to still be fully filled. The drawbacks, though, include an increased chance defects forming which relates to shrinkage (cold shots, shrinkage pores, etc). Another drawback includes entrained air being present, due to the viscosity of the metal being low because of the high pouring temperature.

3 0
2 years ago
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