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3 years ago

A transmutation reaction must always involve a(n) ____.

2 answers:

7 0

A transmutation reaction must always involve a change in the number of protons in a nucleus of an atom. A transmutation reaction involves<span> a change in the structure of atomic nuclei and hence may be induced by a nuclear </span><span>reaction. The correct answer is letter "D." I hope this helps. </span>

Mkey [24]3 years ago

3 0

Answer: Option (d) is the correct answer.

Explanation:

Transmutation is a process which brings changes in the nucleus occur because of change in the number of protons of an atom. Therefore, the atom formed will have different properties from its parent atom.

For example, $^{27}_{13}Al + ^{4}_{2}He \rightarrow ^{30}_{15}P + ^{1}_{0}n$

A transmutation can be natural or artificial in nature.

Thus, we can conclude that a transmutation reaction must always involve a change in the number of protons in a nucleus of an atom.

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A solution is prepared by dissolving sugar in water. The solution is 25.0%, by mass, sugar. How many grams of WATER are in 472 g

const2013 [10]

If the sugar makes up 25% of the solution, that means the water makes up 75%, or 3/4, of the solution.

Set up a proportion to solve:
$\frac{3}{4} = \frac{x}{472}$

Cross multiply:
$4x = 1416$
$x = 354$

Therefore, there are 354 grams of water in the solution.

3 0

3 years ago

Helpp me pretty please

lubasha [3.4K]

Im pretty sure the answer is distance and mass

4 0

3 years ago

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"how many fold difference is the hydrogen ion concentration if the ph is 6.7 is increased to 8.7"

Nina [5.8K]

pH of the solution is calculated using the following formula:

$pH=-log{[H^{+}]}$

Here, $[H^{+}]$ is concentration of hydrogen ion.

Initial value of pH is 6.7, calculate concentration of hydrogen ion from this as follows:

$[H^{+}]=10^{-pH}$

Putting the value,

$[H^{+}]=10^{-6.7}=1.9952\times 10^{-7}$

Thus, initial concentration of hydrogen ion is $1.9952\times 10^{-7}$ .

Now, final pH value is 8.7, calculate concentration of hydrogen ion as follows:

$[H^{+}]=10^{-8.7}=1.9952\times 10^{-9}$

Thus, final concentration of hydrogen ion is $1.9952\times 10^{-9}$ .

The ratio of final to initial value will be:

$\frac{1.9952\times 10^{-9}}{1.9952\times 10^{-7}}=\frac{1}{100}$

Thus, if pH increases from 6.7 to 8.7, concentration of hydrogen ion becomes $\frac{1}{100}$ of the initial value.

5 0

3 years ago

Making homemade ice cream is one of life's great pleasures. fresh milk and cream, sugar, and flavorings are churned in a bucket

crimeas [40]

It should be 13.48%.

1130g NaCL/7250g Ice + 1130 NaCl=0.1348 x 100%= 13.48%

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3 years ago

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The change in energy needed to change the state of a substance is

ohaa [14]

Answer: energy transfer

Explanation:

latent heat, also called the heat of vaporization, is the amount of energy necessary to change a liquid to a vapor at constant temperature and pressure.

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4 years ago