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3 years ago

Who wants to be friends ✨

Chemistry

2 answers:

Vanyuwa [196]3 years ago

5 0

Answer:

:0 me <\3

Explanation:

allochka39001 [22]3 years ago

5 0

Sure, if you want haha

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Observe: Turn on Show molecular view, and notice the water molecules. Set the Water volume to 100 mL and the Powder mass to 20 g

julia-pushkina [17]

Answer: how old are you

Explanation:

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3 years ago

A student wants to collect data during an experiment about the transfer of kinetic energy in a sample of water and ice. Which to

erastova [34]

Given what we know, the tool in question that will help the student collect data regarding the transfer of kinetic energy between water and ice would be a thermometer.

<h3>How does the thermometer measure kinetic energy?</h3>

It does not do so directly. However, kinetic energy in water molecules is reflected in the temperature of the water. When water molecules increase their kinetic energy and move more, they become hotter. Increased or decreased heat is an indirect way to measure the transfer of kinetic energy in water.

Therefore, given that the temperature of the water is a reflection of the transfer of kinetic energy happening, we can confirm that the tool that will help the student collect the data needed is a thermometer.

To learn more about kinetic energy visit:

brainly.com/question/999862?referrer=searchResults

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3 years ago

4.1.2 Quiz: What is scientific notation?

Eddi Din [679]

Answer:

D. Scientific notation is a way of writing large and small numbers

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3 years ago

Compare 1 mole of H2, 1 mole of O2, and 1 mole of F2. (a) Which has the largest number of molecules? Explain why. (b) Which has

AURORKA [14]

a) Answer:

Number of molecules in 1 mole

Explanation:

a) Whether we take any of the substance among all three of the given substances they will have the same number of molecules in 1 mole of the substance is considered and the value for this will be $6.023 x 10^23$

b) Answer:

In the given question mass of the substance which is greatest is asked for one mole and we also know that mass of one mole is given by molar mass.

Explanation:

b) It is known that $31.98g/mol$ is the molar mass for oxygen which is greater than that of hydrogen while fluorine has a molar mass of $38.0 g/mol$ which on comparison shows that, it is the highest amongst all three.

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3 years ago

Br NaOCH2CH3 + CH3CH-OH + NaBr CH3 CH3 a. Identify the mechanism of the reaction. b. Suggest steps for the mechanism of this rea

Ulleksa [173]

Answer:

a) The mechanism of the reaction is the Elimination Bimolecular or E2.

b) Steps for the mechanism of this reaction is given as follows,

c) Reaction rate = K[Organic compound][ $NaoCH_{2} CH_{3}$ ].

Explanation:

a) The mechanism of the reaction is the Elimination Bimolecular or E2.

c) This is an E2 reaction, so it depends on the concentration of both substrate and reactant. If we increase the concentration of $NaoCH_{2} CH_{3}$ , the reaction rate will be increased.

Reaction rate = K[Organic compound][ $NaoCH_{2} CH_{3}$ ].

b) Steps for the mechanism of this reaction is given as follows,

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3 years ago