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pantera1 [17]
3 years ago
10

How to balance a chemical reaction​

Chemistry
1 answer:
aliina [53]3 years ago
8 0
Write the unbalanced chemical equation next you’ll have to determine how many atoms of each element are present on each side. Add coefficients to balance mass. Last is to add coefficients to oxygen and hydrogen atoms The reason is that they usually appear in multiple reactants and products, so if you tackle them first you’re usually making extra work for yourself. Now, look at the equation to see which coefficient will work to balance oxygen.
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Is blinking a voluntary or involuntary activity ​
sattari [20]

Blinking is an involuntary activity, because we do not have control over it. That is what our body is meant to do.

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3 years ago
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Given the equations below, what is the heat of reaction for the process in which carbon monoxide is formed from its elements?
murzikaleks [220]
The answer is B, -110.5.
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3 years ago
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11mg of cyanide per kilogram of body weight is lethal for 50% of domestic chickens. How many grams per kilogram of body weight i
Nookie1986 [14]

Answer:

0.033g

Explanation:

Hello,

In this case, since 11 mg per kilogram of body weight has the given lethality, the mg that turn out lethal for a chicken weighting 3 kg is computed by using a rule of three:

11mg\longrightarrow 1kg\\\\x\ \ \ \ \ \ \longrightarrow 3kg

Thus, we obtain:

x=\frac{3kg*11mg}{1kg}\\ \\x=33mg

That in grams is:

=33mg*\frac{1g}{1000mg} \\\\=0.033g

Regards.

7 0
3 years ago
The reason it takes so much heat to melt ice or evaporate water is that extra energy is required to break _______ bonds between
mart [117]

It takes so much heat to melt ice or evaporate water because extra energy is required to break the hydrogen bonds between water molecules.

<h3>Hydrogen bond</h3>

Hydrogen bonding is an electrostatic force of attraction between a hydrogen atom found between a pair of other atoms having a high affinity for electrons.

Hydrogen bonds cause water to be exceptionally attracted to each other creating cohesion.

It takes so much heat to melt ice or evaporate water because extra energy is required to break the hydrogen bonds between water molecules.

Find out more on Hydrogen bond at: brainly.com/question/12798212

4 0
2 years ago
Rank the organic compounds from most soluble to least soluble. To rank items as equivalent, overlap them.
denpristay [2]
The answer to your questions is as follows:

most soluble 
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>CH3OCH3 
>CH3CH3 
<span>least soluble
</span>
I hope my answer has come to your help. God bless and have a nice day ahead!
7 0
3 years ago
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