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2 years ago

What would cause a liquid to turn into a solid?

Chemistry

2 answers:

alexira [117]2 years ago

7 0

Answer:

Freezing the liquid

Explanation:

Freezing a liquid causes a liquid to become a soild.

cricket20 [7]2 years ago

3 0

Answer:

changing the temperature of the liquid

Explanation:

Ex. Cooking brownie batter(liquid), turns it into an edible brownie(solid). Ex. Putting water into a freezer freezes it, turning it into a solid.

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2 years ago

If an atom has a mass number of 23, which of the following is always true?

lesantik [10]

Atomic number is less than 11

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2 years ago

How many electrons in an atom could have these sets of quantum numbers n=7 l=3 ml=-1?

zysi [14]

Solution:

Since we have ml=-1

it shows that it has two 2e- i;e it fond in 2nd subshell in f orbital. And each subshell can hold 2 e-.

Thus the required answer is 2 electrons hold by an atom.

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3 years ago

The energy pyramid represents energy flow in an African grassland. If there are 7,500

Evgesh-ka [11]

Answer: i need that answer to

Explanation:

3 0

2 years ago

What is the molarity of 555 L of a Ba(OH)2 solution if the pH is 10.20?

Kipish [7]

pH is a symbolic representation of:

$pH=-\log \lbrack H^+\rbrack$

and for water we now that:

$\lbrack H^+\rbrack\lbrack OH^-\rbrack=10^{-14}$

that means the text give us the information to calculate the concentration of protons and therefore the concentration of ions OH-:

$pH=10.2\rightarrow\lbrack H^+\rbrack=10^{-10.2}^{}$

therefore the concentration of OH- can be calculated:

$\lbrack OH^-\rbrack=\frac{10^{-14}}{10^{-10.2}}=10^{-3.8}=1.58\times10^{-4}\text{ M}$

but they are not asking about the concetration of OH- they ask about concentration of Ba(OH)2 and for that we need to know the disolution stechiometry

$Ba(OH)_2\rightarrow Ba^++2\times OH^-$

Whic mean the concentration of Ba(OH)2 is half the concentration of OH-:

$\lbrack Ba(OH)_2\rbrack=\frac{\lbrack OH^-\rbrack}{2}=7.92\times10^{-5}M$

4 0

8 months ago