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3 years ago

What principle do Tesla coils use to generate electricity?

Chemistry

2 answers:

Zepler [3.9K]3 years ago

8 0

Electromagnetic
Hope this helps!

zaharov [31]3 years ago

7 0

When u give supply to a coil then a current will be passed through it .
naturally a magnetic field is produced around the c.c.c(current carrying conductor). when u make more turns in the same direction the whole magnetic field will be stronger than that of a wire has. and 
by lenz's law there will be an opposition to the changing current in a coil due to the change in magnetic field produced

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Which elements have electron configurations that end in ns2np5?

Arada [10]

Last level of atoms of these elements has 2+5= 7 electrons. These elements are located in the 17th group of the Periodic Table, and they are called halogens.

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3 years ago

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What do you need to adjust to balance a chemical equation

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4 years ago

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The invention of the _____________ was considered the critical invention for easily classifying and organizing Stars by brightne

kaheart [24]

Answer:

radio telescope

Explanation:

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3 years ago

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Calculate the percent yield if 52.9 g of ethanol reacts to produce 26.7 g of ether.

blagie [28]

Answer:

The % yield is 62.7 %

Explanation:

Step 1: the balanced equation

2CH3CH2OH(l) → CH3CH2OCH2CH3(l) + H2O(l)

Step 2: Data given

mass of ethanol = 52.9 grams

molar mass of ethanol = 46.07 g/mol

mass of ether = 26.7 grams

Molar mass of ether = 74.12 g/mol

Step 3: Calculate moles of ethanol

Number of moles = Mass / molar mass

Moles of ethanol = 52.9 grams / 46.07 g/mol

Moles of ethanol = 1.15 moles

Step 4: Calculate moles of ether

For 2 moles of ethanol consumed, we have 1 mole of ether produced

For 1.15 moles of ethanol consumed, we have 1.15/2 = 0.575 moles of ether produced

Step 5: Calculate mass of ether

Mass = moles * Molar mass

Mass ether = 0.575 moles * 74.12 g/mol = 42.62 grams = theoretical yield

Step 6: Calculate % yield

% yield = (26.7 / 42.62) * 100 = 62.7%

The % yield is 62.7 %

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4 years ago

Round to 4 significant figures. 0.00238866

Nikitich [7]

Answer:

0.002389

Explanation:

look at the first non-zero digit if rounding to one significant figure

look at the digit after the first non-zero digit if rounding to two significant figures

draw a vertical line after the place value digit that is required

look at the next digit

if it's 5 or more, increase the previous digit by one

if it's 4 or less, keep the previous digit the same

fill any spaces to the right of the line with zeros, stopping at the decimal point if there is one

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3 years ago

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