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3 years ago

A salt bridge is used to provide electrons a path to flow from the electrode of one half-cell to another. TRUE FALSE

1 answer:

8 0

It is false. The salt bridge is not a path for electrons, but a path for ions to flow from one half-cell to another. It help to balance the charge between the oxidation and reduction vessels.

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What is programming language? Describe it's types.<br>

umka21 [38]

A programming language is a vocabulary and set of grammatical rules for instructing a computer device to perform specific tasks. the term programming language usually refers to high level languages, such as BASIC, C, C++, COBOL, Java, FORTRAN, Ada, and Pascal! i hope i was able to help :)

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3 years ago

How does cold water affect the speed of dissolving?

sineoko [7]

Answer:

Anything that can be done to increase the frequency of those collisions and/or to give those collisions more energy will increase the rate of dissolving.

Explanation:

depended on the temperature

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2 years ago

Erika is asked to create a model showing a negatively charged Carbon ion. Which model should she create?

OverLord2011 [107]

I am pretty sure u have pictures and this one should be the one that erika should make

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2 years ago

Which of these correctly describes the energy that makes the carousel turn

Dmitrij [34]

Answer:

Explanation:

A carousel can be made to rotate using different sources of energy. One may decide to use electric energy, manual effort, water energy or heat energy as in a candle carousel.

When the candle is lit, heat energy is supplied and warm air rises heating up the air near the carousel eventually causing it to start rotating.

Hence heat from the candle leads to a current of warm air that rises up, causing the carousel to start rotating.

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3 years ago

Vanillin (used to flavor vanilla ice cream and other foods) is the substance whose aroma the human nose detects in the smallest

balu736 [363]

Answer:

Cost to supply enough vanillin is $3.2\$$

Explanation:

Threshold limit of vanillin in air is $2.0\times 10^{-11}g$ per litre means there should be $2.0\times 10^{-11}g$ of vanillin in 1L of air to detect aroma of vanillin.

$1ft^{3}=28.32L$

So, $5.0\times 10^{7}ft^{3}=(5.0\times 10^{7}\times 28.32)L$

So amount of vanillin should be present to detect = $(2.0\times 10^{-11}\times 5.0\times 10^{7}\times 28.32)g$

As cost of 50 g vanillin is $112\$$ therefore cost of $(2.0\times 10^{-11}\times 5.0\times 10^{7}\times 28.32)g$ vanillin = $(2.0\times 10^{-11}\times 5.0\times 10^{7}\times 28.32\times 112)\$ = 3.2\$$

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3 years ago