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Aleks [24]
3 years ago
13

LIST TWO SUBSTANCE THAT CAN BE USED TO (i)REDUCE THE ACIDITY OF A SUBSTANCE

Chemistry
1 answer:
jenyasd209 [6]3 years ago
3 0

Answer:

An acidic substance is any substance with a pH of less than 7, the smaller the number the more acidic it is. ... An acid is a substance that donates hydrogen ions. Because of this, when an acid is dissolved in water, the balance between hydrogen ions and hydroxide ions is shifted.

Explanation:

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A piece of unknown solid substance weighs 437.2 g, and requires 8460 J to increase its temperature from 19.3 °C to 68.9 °C.What
Pachacha [2.7K]

Answer:

0.3832

Explanation:

Givens

m = 437.2 grams

c = ?

delta t = 69.8 - 19.3

H = 8460 J

Formula

H = m*c*Δt

Solution

8460 = 437.2 * c * (69.8 - 19.3)

8460 = 437.2 * c * 50.5

8460 = 22078.6 * c

c = 8460 / 22078,6

c = .3832 J / (oC * gr)

3 0
3 years ago
Which of the following is NOT true?
ivanzaharov [21]
B, hope this helps :)
4 0
3 years ago
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The actual yield:
aleksley [76]

Answer:

rarely equals the theoretical yield

Explanation:

The actual yield is the result obtained from the experiment while the theoretical yield is the result obtained from our calculations. The actual yield of a chemical reaction rarely equals the theoretical yield because some of the amount are loss during the process.

4 0
3 years ago
Which of the following values best classifies a bond between 2 atoms as being ionic?
Art [367]

<span>A compound which is called ionic compound dissociates into ions when in aqueous solution. These ions move freely in the solution and can allow the flow of electricity into the solution. These ions contains a certain charge or what is called the oxidation number.</span>

7 0
3 years ago
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Seperating a solid for a liquid by evaporating the liquid is called_____?
Daniel [21]

The answer is filtrate.

Filtration is any of various mechanical, physical or biological operations that separate solids from fluids

3 0
3 years ago
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