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strojnjashka [21]

3 years ago

5

Suppose the liquid water in ice cream did not have solutes dissolved in it. What effect do you think this would have on ice crea

m? (hint: Consider the temperature at which ice cream is kept.)

1 answer:

devlian [24]3 years ago

7 0

The water would freeze at a higher temperature than it would with the other ingredients.

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Which is the correctly balanced chemical equation for the reaction of KOH and H2SO4? Which is the net ionic equation for the rea

NeX [460]

Answer:

See explanation

Explanation:

A balanced chemical reaction equation has the same number of atoms of each element on both sides of the reaction equation.

Hence, for the reaction between KOH and H2SO4, the balanced chemical reaction equation is;

H2SO4(aq) + 2KOH(aq) ---------> K2SO4(aq) + 2H2O(l)

Complete ionic equation;

2H^+(aq) + SO4^2-(aq) + 2K^+(aq) +2OH^-(aq) -------> SO4^2-(aq) + 2K^+(aq) + 2H2O(l)

Net ionic equation;

2H^+(aq) + 2OH^-(aq) -------> 2H2O(l)

6 0

3 years ago

There is 35 mg of sodium in a can of Coke. You determine it to be 28 mg. What is your percent error?

natali 33 [55]

Answer:

The answer is

<h2>20 %</h2>

Explanation:

The percentage error of a certain measurement can be found by using the formula

$P(\%) = \frac{error}{actual \: \: number} \times 100\% \\$

From the question

actual volume = 35 mg

error = 35 - 28 = 7

The percentage error is

$P(\%) = \frac{7}{35} \times 100 \\ = \frac{1}{5} \times 100 \\ = 20$

We have the final answer as

<h3>20 %</h3>

Hope this helps you

8 0

3 years ago

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When a drawing of a circle made in the center of a piece of paper with a black marker gets wet, the marker bleeds, and as the wa

suter [353]

Answer:

D) Chromatography

Explanation:

8 0

3 years ago

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Which is more metallic<br><br> a) Silicon<br><br> b) Aluminum

Alekssandra [29.7K]

Answer:b

Explanation:

4 0

3 years ago

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Hydrolamine ,NH2OH , is a reducing agent found in some film developing solutions. How many hydrogen atoms are in 1.80moles of hy

kolezko [41]

Answer:

number of hydrogen atom in 1.8 mole of NH2OH = $9.8\times 10^{22}$

Explanation:

percentage of hydrogen in NH2OH = mass of hydrogen / mass of whole molecule

= $\frac{3\times 1}{14+3+16}$ \times 100

= 9.09 percentage

therefore number of moles in 1.8 moles of hydroxy amine = $\frac{9.09}{100}\times 1.8$

= .16 moles of hydrogen

number of hydrogen atom = (number of moles )×(avagadro number)

= $9.8\times 10^{22}$ atoms of hydrogen

3 0

3 years ago