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natta225 [31]
4 years ago
12

Which is a TRUE statement about salt water?

Chemistry
2 answers:
makkiz [27]4 years ago
6 0
I think the best answer from the given choices is option D. <span>Salt water is made up of more than one pure substance. It consists of salt and water. When each component exist alone in a container they are considered as pure substance however when mixed they are now a solution.</span>
Phantasy [73]4 years ago
3 0

Answer:

the answer is D

Explanation:

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5. How many moles are there in 222.3 grams of Ca(OH)2? (1) 1.5 mol (3) 5.5 mol (2) 3.0 mol (4) 22.3 mol 5​
tensa zangetsu [6.8K]

Answer: (2)3.0 mol

Explanation: 222.3g= 222.3/74= 3.0 mol

1mol Ca(OH)2 is 74g

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3 years ago
What is the process of using one or more of your five senses to measure or collect data?
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Answer:

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A 12.8 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter with a heat capacity of 5.65 kJ/°C. Using the information be
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To answer the question above, we need to c<span>onvert 12.8 g to moles by dividing by 46.07 first.</span>

<span>For every mole you burn, you get 1235 kJ of heat. So multiply your number of moles by 1235. It'll be something in the neighborhood of 500. </span>

<span>Take your kJ that you calculated and divide by 5.65 to get the number of degrees that your calorimeter goes up. Add that to 25.

I hope my answer helped you</span>
8 0
4 years ago
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There are two main types of covalent bond breakage. In homolytic breakage (as in Table 9.2, p. 371), each atom in the bond gets
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The C¬C bond in H₃C¬CF₃ (423 kJ/mol) stronger than that in H₃C¬CH₃ (376 kJ/mol) because of the strong negative inductive effect of fluorine atom

<h3>What is Inductive effect?</h3>

When an electron- withdrawing or an electron- releasing species is allow to introduce to a chain of atoms (generally a carbon chain), according to the species corresponding negative or positive charge is start relayed through the carbon chain by the atoms through which it attached. This makes a permanent dipole to arise in the molecule and is referred to as the inductive effect.

<h3>Types of Inductive effect</h3>

+ inductive effect

- inductive effect

<h3>What is negative inductive effect?</h3>

Whenever an electronegative atom, like halogen, is introduced to a chain of carbon atoms (generally carbon atoms), this results in unequal sharing of electrons which generates a positive charge which is transmitted through the chain.

This make a permanent dipole to arise in the molecule whereas the electronegative atom get a negative charge and the effect is known as the electron-withdrawing inductive effect, or the -I effect.

Thus, we concluded that the C¬C bond in H₃C¬CF₃ (423 kJ/mol) stronger than that in H₃C¬CH₃ (376 kJ/mol) because of the strong negative inductive effect of fluorine atom.

learn more about inductive effect:

brainly.com/question/10817601

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1 year ago
Select all that apply.
wariber [46]

Answer:

The reaction is endothermic

Explanation:

we know that the reactants had to get energy from its surroundings which means that the reaction is endothermic

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