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3 years ago

What’s the fastest way to balance chemical equations

Chemistry

1 answer:

Anon25 [30]3 years ago

6 0

Hey there!

The best way to balance chemical equations is to first start by balancing polyatomic ions such as OH and SO₄.

Next, balance other elements, but save elements that are by themselves for last, such as H₂ or Fe. Once you balance everything else you can do the ones by themselves, it's much easier.

Hope this helps!

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How do i balance the first chemical reaction above?? plz plz help

soldier1979 [14.2K]

Answer:

2K +F₂→ 2KF

Explanation:

When we balance an equation, we are trying to ensure that the number of atoms of each element is the same on both sides of the arrow.

On the left side of the arrow, there is 1 K atom and 2 F atoms. On the right, there is 1 K and 1 F atom.

Since the number of K atoms is currently balanced, balance the number of F atoms.

K +F₂→ 2KF

Now, that the number of F atoms is balanced on both sides, check if the number of K atoms are balanced.

Left

K atoms: 1

F atoms: 2

Right

K atoms: 2

F atoms: 2

The number of K atoms is not balanced.

2K +F₂→ 2KF

Left

K atoms: 2

F atoms: 2

Right

K atoms: 2

F atoms: 2

The equation is now balanced.

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2 years ago

You’ve been waiting for the bus and your hands become cold. When you get onto the bus and sit down, you put your hands under you

snow_tiger [21]

Explanation:

The First Law of Thermodynamics states that energy cannot be created or destroyed in an isolated system. In other words, energy can be converted from one form into another, but it cannot be created nor destroyed.

Conduction is the transfer of energy from one molecule to another by direct contact. This transfer occurs when molecules hit against each other, which can take place in solids, liquids, and gases.

When you put your cold hands under your legs to warm your hands up, the heat energy from your legs is being transferred to your hands through conduction. However, since energy cannot be created, there is no extra heat energy that can instantaneously replace the heat created by your legs.

3 0

2 years ago

Read 2 more answers

. Round to the nearest whole number

laila [671]

Answer:

21091mg of aspirin the person need to consume

Explanation:

To solve this question we must find the mass of the person in kg. Knowing the lethal dose for aspirin is 400mg/kg of person, we can find the amount of aspirin that the person need to consume to get a lethal dose:

Mass person:

116lb * (1kg / 2.2lb) = 52.7kg

Lethal dose:

52.7kg * (400mg / kg) =

<h3>21091mg of aspirin the person need to consume</h3>

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3 years ago

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

tatuchka [14]

the force that pushes magma from the magma chamber through the pipe and vent of a volcano is expanding gases.

Hope this helps you succeed. :D

4 0

3 years ago

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Where is the earth curst thinkest

Dafna11 [192]

The crust of the Earth is thickest beneath the continents.

6 0

3 years ago