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3 years ago

Which of the following rules should you follow to balance chemical equations?

Chemistry

1 answer:

Firdavs [7]3 years ago

3 0

Answer:

c. add coefficients as needed

Explanation:

A chemical equation is defined as the equation that shows changes in a chemical reaction. A chemical equation consist of reactant and product, reactant is at left side of the arrow and product is at right side of the arrow.

Reactant => Product

While balancing a chemical equation, the basic rule is to balance the coefficient as required. Coefficient represents the number of molecules and is used at front of a chemical symbol. Change in coefficient helps balance the number of atoms or molecules of the substances on both the sides of the arrow.

Subscripts are never allowed to change because it can change the chemical involved in the reaction.

Hence, the correct answer is "c. add coefficients as needed".

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Where do the majority of volcanoes occur?

galben [10]

It’s probably b they are mostly near water

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3 years ago

It is desired to make 1.00 liter of 6.00 M nitric acid from concentrated 16.00 M HNO3.A) How many moles of nitric acid are in 1.

natima [27]

Answer:

A) 6.00 mol.

B) 0.375 L or 375 mL

C) 6.00 M

Explanation:

Hello,

A) In this case, from the definition of molarity, we compute the moles for the given volume and concentration:

$n=M*V=1.00L*6.00mol/L=6.00mol$

B) In this case, from the stock solution, the required volume is:

$V=\frac{6.00mol}{16.00mol/L}=0.375L$

C) In this case, we apply the following formula for dilution process:

$M_1V_1=M_2V_2$

Thus, solving for the final molarity, we obtain:

$M_2=\frac{M_1V_1}{V_2}=\frac{16.00M*0.375L}{1.00L}\\ \\M_2=6.00M$

Regards.

5 0

3 years ago

A bond formed when atoms share electrons is a(n) __________.

Amiraneli [1.4K]

Answer:

I think it is a covalent bon

8 0

3 years ago

A student observed a blue

morpeh [17]

Answer:

Color.

Explanation:

Hello,

In this case, since matter has a lot of properties regarding its physical condition and chemical composition, those related to the appearance of matter are physical. In such a way, since the student observed to different substances with also different colors, we can infer that the property of matter that was observed in the scenario was color, which accounts for the graphical perception we have from them.

Best regards.

5 0

3 years ago

The subatomic particle that has. Positive charge and is found in the nucleus an atom is

Kipish [7]

Answer:Protons, neutrons, and electrons are the three main subatomic particles found in an atom. Protons have a positive (+) charge. An easy way to remember this is to remember that both proton and positive start with the letter "P." Neutrons have no electrical charge.

Explanation:

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3 years ago