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Maru [420]
4 years ago
11

WILL GIVE BRAINIEST!!!!

Chemistry
2 answers:
LUCKY_DIMON [66]4 years ago
7 0

D) It is an acid because it increases the concentration of hydrodium ions

Elan Coil [88]4 years ago
7 0

D) is an acid because it hydronimum ions.

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3. A gram food sample is burned completely in a calorimeter that contains 1000. of water The temperature of the water increases
lidiya [134]

The food has 23629.64 cal

<h3>Further explanation</h3>

Given

mass = 1000 g of water

temperature increases 23.65 * C

Required

The energy of the food

Solution

Heat absorbed by water :

Q = m . c . Δt

Q = 1000 g x 4.184 J/g°C x 23.65 °C

Q = 98951.6 J

1 Joules = 0.2388 Calories

98951.6 J = 23629.64 cal

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3 years ago
What are at least 2 differences mitosis and meiosis?
attashe74 [19]

Mitosis has one round of cellular division and genetic separation whereas meiosis has two rounds. The two processes are also different because in mitosis the daughter cells are exactly identical to the parent cells compared to meiosis where the daughter cells are not genetically identical to the parent cells


Hope this helped

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4 years ago
Can a metal detector detect copper, brass, and aluminum?.
Setler [38]
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4 0
2 years ago
The weak ionization constant (Ka)
Nostrana [21]

Carbonic acid is a weak acid. Its weak ionization constant (Ka) is equal to:

Ka = [H⁺] [HCO₃⁻] / [H₂CO₃]

<h3>What is a weak acid?</h3>

A weak acid is an acid that dissociates partially in the water.

The equation for the acid dissociation of carbonic acid is:

H₂CO₃ ⇄ H⁺ + HCO₃⁻

The weak ionization constant (Ka) is the equilibrium constant for this reaction, that is, the product of the concentration of the products divided by the product of the concentrations of the reactants, all of them raised to their stoichiometric coefficients.

Ka = [H⁺] [HCO₃⁻] / [H₂CO₃]

Carbonic acid is a weak acid. Its weak ionization constant (Ka) is equal to:

Ka = [H⁺] [HCO₃⁻] / [H₂CO₃]

Learn more about weak acids here: brainly.com/question/15192126

4 0
3 years ago
if a star is located 100 light years away from earth, how long does it take for its light to reach the earth
olga55 [171]
If a star is located 100 light years from Earth, the light will take 100 years to reach Earth.
I hope this helps !
8 0
3 years ago
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