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ale4655 [162]
3 years ago
12

Which most likely uses only alternating current?

Chemistry
2 answers:
Andrei [34K]3 years ago
8 0

Answer:

The correct answer is TV.

Explanation:

I had to search the options of the question to know what kind of equipment I had to choose. The options I found are:

A.) iPhone B.) Watch C.) Compass D.) TV

The iPhone and the clock use batteries, so your system is DC. The compass does not use any type of current, it works through a magnet and the earth's magnetic field. The TV is powered by the alternating current that reaches the home.

Have a nice day!

elixir [45]3 years ago
5 0

Answer:

its the tv

Explanation:

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3 years ago
What type of chemical reaction involves 2 or more elements combining to form one?
Vikki [24]
Hey there!

I believe the answer is Combination (or Synthesis) Reaction. 
6 0
3 years ago
Some nighttime partygoers wear glow-inthe-dark necklaces. the necklaces start glowing once they are ""activated"" by snapping th
8_murik_8 [283]

Answer:

Exergonic

Explanation:

The process is exergonic because it transfer energy from the system to the surrounds in the shape of light. It happens because of the Gibbs free energy (ΔG) which is lower than zero. If the reaction was Endergonic, the Gibbs free energy should be higher than zero. We can calculate it from the GIbbs-Helmholtz equation: ΔG = ΔH - T . ΔS. ΔH is enthalpy, T is the temperature and ΔS is entropy.

5 0
3 years ago
Compound A has a molecular formula C5H12, and monobromination of compound A produces only compound B. when compound B is treated
astra-53 [7]
D is the correct answer
4 0
4 years ago
5K + KNO3 ------ 3K2O + N
masya89 [10]

Answer:

174,957.143 grams of potassium and 89,228.478 grams of potassium nitrate will be needed.

Explanation:

5K +KNO_3\rightarrow 3K_2O + N

Mass of nitrogen =  27 lbs = 12,247 g

1 lbs = 453.592 g

Moles of nitrogen = \frac{12,247 g}{14 g/mol}=874.786 mol

According to reaction, 1 mole of nitrogen is produced from 5 moles of potassium and 1 mole of potassium nitrate.

Then 874.786 mol of nitrogen will be obtained from :

\frac{5}{1}\times 874.786 mol=4,373.928 mol of potassium.

Then 874.786 mol of nitrogen will be obtained from :

\frac{1}{1}\times 874.786 mol=874.789 mol of potassium nitrate.

Mass of 4,373.928 moles of potassium:

4,373.928 mol\times 40 g/mol=174,957.143 g of potassium

Mass of 874.789 moles of potassium nitrate:

874.789 mol\times 102 g/mol=89,228.478 g of potassium nitrate

3 0
3 years ago
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