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Elanso [62]
3 years ago
10

Can someone help me? We literally started this unit yesterday and I got quarantined so I dont have a clue what im doing..

Chemistry
1 answer:
zloy xaker [14]3 years ago
3 0

Answer:

Explanation:

Take out your periodic table.

The choices that have one 1 member of the periodic table on it are elements.

He is the symbol for Helium

O2 oxygen

C3 but this is really odd. It is Carbon but Carbon usually does not  combine in 3s.

The rest are all compounds (they are made up of the elements on the periodic table). For example

H2SO4

is made up of 2 Hydrogens

1 sulfur

4 oxygens.

All the others do exactly the same thing.

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What is Acid ?<br>please don't report , don't give link and give the correct answer .​
VladimirAG [237]

Answer:

Below in Bold

✧ \underline{ \underline{ \red{ \large{ \tt{E \: X \: P \: L \: A \: N \: A \: T \: I \: O \: N}}}} }:

♨ The word ' acid ' is derived from the Latin word ' acidus ' which means sour. An acid is defined as the substance which gives hydrogen ions or protons ( H+ ) when dissolved in water. For example :

  • Hydrochloric acid
  • Sulphuric acid
  • Nitric acid
  • Carbonic acid
  • Acetic acid

✎ \underline{ \underline{ \purple{ \large{ \tt{Extra \: Info}}}}} :

☃ Physical properties :

  • Acids have a sour taste. But some acids like steric acid, boric acid , salisylic acid do not have a sour taste. Laboratory acids are more corrosive , so they are dangerous to taste.
  • Acid turn blue colour of litmus paper into red and light yellow methyl orange into red. They make phenolphthalein colourless.

☂ Chemical properties :

  • Acids have a high dissolving power and dissolve many substances. Some metals like zinc and magnesium react with acids like dilute sulphuric acid and dilute hydrochloric acid to produce salt and hydrogen gas.
  • Acid react with base to give salt and water.
  • Acid gives H+ ions when dissolved in water.
  • Acid react with metallic carbonates to produce carbon dioxide.

☼ Hope I helped! ♡

Have a wonderful day / night ! ツ

☥ \underbrace{ \overbrace{ \mathfrak{Carry \:On \: Learning}}}

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

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siniylev [52]

The answer is; C

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