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BlackZzzverrR [31]
3 years ago
12

Can each polyatomic ion be treated as a unit when balancing the chemical equation

Chemistry
1 answer:
marysya [2.9K]3 years ago
3 0
Yes. You can either treat the entire polyatomic ion as a unit or separate the elements in the polyatomic ion. Pay attention the parentheses and subscripts, though. Those can confuse people a lot. I personally find it easier to just treat it as a whole unit.  
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Which of the following is an example of a solution? A. An iron alloy B. Iron metal C. An iron ore D. Iron rust
Ganezh [65]
The one that is an example of a solution is : A. an iron alloy
iron alloy consist of minor component that is distributed within the major component, which is the basic requirement for a solution
4 0
3 years ago
A little boy is playing with a plastic water bottle. He blows air into the bottle to make a whistling sound. Then, he wedges a p
Rzqust [24]

Answer:

A little boy is playing with a plastic water bottle. He blows air into the bottle to make a whistling sound. Then, he wedges a plastic ball into the bottle to make a rattle. But the ball is too big—it gets stuck in the mouth of the bottle! The little boy panics and runs to his big brother for help.

Luckily, his older brother just studied the principle of Boyle's law. Based on what he learned, how will he get the ball out of the bottle?

by placing the bottle in the freezer to decrease the mass of the air inside the bottle

by pushing down on the bottle to decrease the temperature of the air in the bottle

by placing the bottle in the freezer to increase the air pressure inside the bottle

by pushing down on the bottle to increase the air pressure inside the bottle?

Explanation:

You will need to heat the bottom of the bottle to make gas build up than the ball will pop out.

4 0
3 years ago
What is the general procedure from extracting a metal from its ore
Veseljchak [2.6K]
<span>Ores are naturally occurring rocks that contain metal or metal compounds in sufficient amounts to make it worthwhile extracting them. For example, iron ore is used to make iron and steel.</span>
5 0
3 years ago
What mass of oxygen gas is consumed in a reaction that produces 4.60 mol sulfur dioxide?
babunello [35]

Answer:

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7 0
2 years ago
1. The most useful ore of aluminum is bauxite, in which Al is present as hydrated oxides, Al2O3⋅xH2O The number of kilowatt-hour
lianna [129]

*Answer:

Option A: 59.6

Explanation:

Step 1: Data given

Mass of aluminium = 4.00 kg

The applied emf = 5.00 V

watts = volts * amperes

Step 2: Calculate amperes

equivalent mass of aluminum = 27 / 3 = 9  

mass of deposit = (equivalent mass x amperes x seconds) / 96500

4000 grams = (9* amperes * seconds) / 96500

amperes * seconds = 42888888.9

1 hour = 3600 seconds

amperes * hours = 42888888.9 / 3600 = 11913.6

amperes = 11913.6 / hours

Step 3: Calculate kilowatts

watts = 5 * 11913.6 / hours

watts = 59568 (per hour)

kilowatts = 59.6 (per hour)

The number of kilowatt-hours of electricity required to produce 4.00kg of aluminum from electrolysis of compounds from bauxite is 59.6 kWh when the applied emf is 5.00V

5 0
3 years ago
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