Is the following equation balanced? Zn + 2HCl → ZnCl₂ + H₂

Answer:

28%

Explanation:

Basically, all o did was write the equations, balance it and solve for them. Also, at the place I stared, I used simultaneous equation to solve it. Multiplying by 8 and also 3.

It's a pretty straightforward question.

At the final step that's missing, I Did

(y)C3H8 = 2.8 / ( 2.8 + 7.1)

(y)C3H8 = 0.28

The complete question is

If the compound below is oxidized, the resulting product is ___.

the compound given is Butanal

Select one:

a. methane and propane

b. butanal

c. butanoic acid

d. butane

Answer:

C. Butanoic Acid

Explanation:

When Butanal is oxidized using reagents like KMnO4, Tollens reagent etc.

When Aldehyde is oxidized corresponding Carboxylic Acid is produced

 Butanal →  Butanoic Acid

Answer:

most likely Energy that's what I'm thinking

Answer:

C

Explanation:

Based on the synthesis reaction,the product of the given chemical equation is NaCuPO4 .

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

Learn more about chemical equation,here:

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Answer:

NiO Does Not Dissolve In An Aqueous Solution Of NaNO3.

Explanation:

Answer:blacks screen. No answers to choose from. Thanks for the points:))

Explanation:

Answer:

[tex]pH=1.67[/tex]

Explanation:

Hello.

In this case, since the reaction between the sulfuric acid and the potassium hydroxide is:

[tex]2KOH+H_2SO_4\rightarrow K_2SO_4+2H_2O[/tex]

We can see a 2:1 mole ratio between them, thus, we compute the moles of acid and base that are present in the solution by using the employed volume and its concentration:

[tex]n_{H_2SO_4}=0.155mol/L*0.0350L=0.005425molH_2SO_4\\\\n_{KOH}=0.225mol/L*0.0350L=0.007875molKOH\\[/tex]

Next, we use the 2:1 mole ratio to compute the consumed moles of acid:

[tex]n_{H_2SO_4}^{consumed}=0.007875molKOH*\frac{1molH_2SO_4}{2molKOH}=0.0039375molH_2SO_4[/tex]

It means that the leftover of sulfuric acid is:

[tex]n_{H_2SO_4}^{leftover}=0.005425-0.0039375=0.001488molH_2SO_4[/tex]

Therefore, since sulfuric acid is a strong acid, the pH is defined in terms of its concentration which is actually equal to the concentration of hydrogen ions in solution, which is computed considering the total additive volume:

[tex][H^+]=[H_2SO_4]=\frac{0.001488mol}{0.070L}=0.02125M[/tex]

So the pH turns out:

[tex]pH=-log(0.02125)\\\\pH=1.67[/tex]

Best regards.

answer:  

i believe the answer is inverse.

if i'm wrong sorry :(

if i'm right your welcome :)

Answer:

lol, I just did this assignment, cold water

0:30: slowly expand

1:00: still expanding

1:30: expanding is continued

2:00: still expanding slowly

2:30: expanding slowly

3:00: expanded twice the size from the first time

hot water

0:30: expanding quickly

1:00: still expanding

1:30: starts to reach the surface and still expanding

2:00: almost all the of the dye reached the top

2:30: the dye reached the top and is starting to split

3:00: the dye split appart and is moving down again

radiation

white paper

0:30: at a low temp. at around 3.3 C

1:00: still at a low temp. around 4.4 C

1:30: slowly rising temp. around 5.5 C

2:00: still slowly rising temp. around 7.2 C

2:30: still at a low temp. around 8.3 C

3:00: ends at a low temp. around 10 C

black paper

0:30: at a resonable temp. at around 6.6 C

1:00: temp. rises quicker at around 13.3 C

1:30: temp. stil rising quickly at around 17.7 C

2:00: temp. is getting hotter at around 21.6 C

2:30: temp. is still getting hotter at around 26.1 C

3:00: temp. ends at a hot temp. at around 30 C

Explanation:

Answer:

It's important for scientists to know the properties of matter because all things are made up of matter. Each type of matter has different physical characteristics and scientists need to know and understand these characteristics to make calculations. ... The main phases of matter are solid, liquid, and gas

Explanation:

^^

Answer:

M = 1 M

Explanation:

Given data:

Mass in gram = 342.2 g

Volume of solution = 1.0 L

Molar concentration = ?

Solution:

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

Molarity = number of moles of solute / L of solution

Number of moles of sucrose:

Number of moles = mass/molar mass

Number of moles = 342.2 g/ 342.2 g/mol

Number of moles = 1 mol

Molarity:

M = 1 mol / 1.0 L

M = 1 mol/L

M = 1 M

The molar concentration of the solution is :

- M = 1 M

Check below to see the full solution.

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

What information do we have?

Mass in gram = 342.2 g

Volume of solution = 1.0 L

Molar concentration = ?

Number of moles of sucrose:

Number of moles = mass/molar mass

Number of moles = 342.2 g/ 342.2 g/mol

Number of moles = 1 mol

Molarity:

Molarity = number of moles of solute / L of solution

M = 1 mol / 1.0 L

M = 1 mol/L

M = 1 M

Learn more about "Molarity":

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Answer:

An atom that gains or loses an electron becomes an ion. If it gains a negative electron, it becomes a negative ion. If it loses an electron it becomes a positive ion.

Answer:

when an atom gains an electron, it gains a negative charge . it's volume increases as well due to the increase in repulsion between the electrons

Answer:

Noble gases

Explanation:

Noble gases