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Citrus2011 [14]
3 years ago
10

!NEW!!!! HOW FAST CAN YOU ANSWER

Chemistry
2 answers:
yKpoI14uk [10]3 years ago
8 0
The answer is D. Li (3) and Na (11)
Nastasia [14]3 years ago
4 0

Answer:

SO FAST

Explanation:

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Please i need the answer for 18,19,20<br><br><br>Answer and I will give you brainiliest <br>​
dezoksy [38]
Number 18 is correct, number 19 is the particles speed up and the substance expands, and number 20 is decrease in volume
8 0
3 years ago
Explain the results for the tube in which 1.0 m naoh was added to benzoic acid. write an equation for this, using complete struc
nikklg [1K]

When sodium hydroxide (NaOH) is added to benzoic acid (CC_{6}H_{5}COOH), sodium benzoate and water (H_{2}O) are formed because benzoic acid is weak acid and NaOH is strong base. The reaction is shown in diagram 1. To the tube of sodium benzoate, if 6 m HCl is added, sodium benzoate salt will react with HCl and produce benzoic acid and sodium chloride, NaCl. The reaction is shown in diagram 2.

5 0
3 years ago
HELPPPPPPPPP ASAPPPP!!!!!
andreev551 [17]
Answer :
B

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8 0
3 years ago
Please help with this question and explain too
nikitadnepr [17]
Formula of density is mass divided by volume.

8 0
3 years ago
Classify each of the following possible reactions according to whether a precipitate will form or will not form.
elena-14-01-66 [18.8K]

Answer:

Reactions, 2, 3 and 5 make precipitates

Explanation:

1. The halogens always make aqueous salts with elements from group 1

2. Phosphate anion can make insoluble salts, the same as carbonate.

3. Nitrate anion always make aqueous salts

4. Sulfate anion makes aqueous salts except with Ag⁺, Pb⁺² and group 2

1. KI(aq) + NaCl(aq) → KCl(aq) + NaI(aq)

2. 2Na₃PO₄ (aq) + 3CoCl₂(aq) → 6NaCl(aq) + Co₃(PO₄)₂(s) ↓

3. Na₂CO₃ (aq) + CuCl₂ (aq) → 2NaCl (aq) + CuCO₃ (s) ↓

4. 2LiNO₃ (aq) + Na₂SO₄ (aq) → Li₂SO₄ (aq) + 2NaNO₃(aq)

5.  CrCl₂ (aq) + Li₂CO₃ (aq) → 2LiCl (aq) + Cr₂(CO₃)₂ (s) ↓

8 0
3 years ago
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