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anyanavicka [17]

3 years ago

15

Find three acids and three bases used in your home.

1 answer:

GaryK [48]3 years ago

8 0

Acids

Acetic acid in vinegar, used in cooking - CH<span>₃COOH
Citric acid in lemons and oranges - C</span>₆H₈O<span>₇</span>
Carbonic Acid in soft drinks - H₂CO<span>₃
</span><span>
Bases

Sodium Hypochlorite is found in bleach - NaClO
Sodium Hydroxide found in drain cleaners - NaOH
Sodium bicarbonate, also known as baking soda which is used in cooking - NaHCO</span><span>₃</span><span>
</span>

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Elements are organized into groups / families according to their physical and chemical properties. Identify the elements that's

Kryger [21]

Answer:

1 valence - Alkali Metals: Li Lithium, Na Sodium, K Potassium

2 valence - Alkaline Earth Metals: Be Beryllium, Mg Magnesium, Ca Calcium

3 valence - Non-metals: B Boron, Al Aluminium

4 valence - Non-metals: C Carbon, Si Silicon

5 valence - Non-metals: N Nitrogen, P Phosphorus

6 valence - Non-metals: O Oxygen, S Sulfur, Se Selenium

7 valence - Halogens: F Fluorine, Cl Chlorine, Br Bromine

8 valence - Noble Gases: He Helium, Ne Neon, Ar Argon

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3 years ago

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saveliy_v [14]

AnswU GOT THIS!!!!!!!!!!!!!

Explanation:

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During the early paleozoic land plants begin to grow which consisted of

Gnesinka [82]

B. (Hope This Helps)

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Many portable gas heaters and grills use propane, C3H8(g). Using enthalpies of formation, calculate the quantity of heat produce

Elodia [21]

Answer: 600 kJ

-

Explanation:

C₃H₈ (g) + 5 O₂ (g) =============== 3 CO₂ (g) + 4 H₂O (l)

Δ⁰Hf kJ/mol -104 0 -393.5 -285.8

Δ⁰Hcomb C₃H₈ = 3(-393.5) + 4 (-285.80) - (-104) kJ/mol

Δ⁰Hcomb = 2219.70 kJ/mol

n= m /MW MW c₃H₈ = 44.1 g/mol

n= 12 g/44.1 g/mol = 0.27 mol

then for 12 g the heat released will be

0.27 mol x 2219.70 kJ/mol = 600 KJ

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2 years ago

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What binary compound would be formed from barium ions and fluoride ions?

LenaWriter [7]

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