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Dafna1 [17]
3 years ago
5

What are real world examples of chemical changes?

Chemistry
1 answer:
Stels [109]3 years ago
5 0
Burning paper because it can’t be changed back
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4. Jake surveyed his 25 classmates on their favorite flavor of
Eddi Din [679]

Answer:

J

Explanation:

In total there are 25 students. If you add up all the other students who liked flavors other than strawberry twist you will get 14. That means 14/25 students did not favor strawberry twist, while the other 11/25 did.

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3 years ago
What is the power of yet is
prisoha [69]

Answer:

The power of yet is a way to change you mindset about something. It gives you a positive mindset, because it you say I cant do this yet. you are not giving up

Explanation:

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3 years ago
What is the equilibrium constant for the reaction<br> SO2(g) + NO2(g) = S03(g) + NO(g)?
aev [14]

Answer:

Keq: [SO3][NO] /[SO2]NO2]

Explanation:

3 0
1 year ago
Arrange the following bonds in order of increasing ionic character. assign number 1 as the highest and 6 as the lowest. a. carbo
SIZIF [17.4K]
Answer: Potassium to fluorine, fluorine to nitrogen, bromine to hydrogen, carbon to hydrogen, lithium to chlorine, sodium to chlorine.
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Ionic bond is greater when the electronegativity difference existing between the two atoms are large causing the bonding to be more polar.
5 0
2 years ago
Calculate the pHpH of a 0.10 MM solution of HClHCl . Express your answer numerically using two decimal places.
alisha [4.7K]

Answer: The pH 0f 0.10 solution of HCl is 1.00

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

pH=-\log [H^+]

HCl\rightarrow H^++Cl^{-}

According to stoichiometry,  

1 mole of HCl gives 1 mole of H^+  

Thus 0.10 moles of HCl gives =\frac{1}{1}\times 0.10=0.10 moles of H^+  

Putting in the values:

pH=-\log[0.10]

pH=1.00

Thus pH 0f 0.10 solution of HCl is 1.00

8 0
3 years ago
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