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3 years ago

Sodium chloride is an example of a

Chemistry

2 answers:

Andrei [34K]3 years ago

6 0

C. Weak acid is the correct answer

elena-14-01-66 [18.8K]3 years ago

5 0

It’s a strong electrolyte. Electrolytes are ions in aqueous solution, and sodium and chlorine are both ions in NaCl.

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How do I identify polar bonds?

pantera1 [17]

Identify each bond as either polar or nonpolar.

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3 years ago

Read 2 more answers

An independent variable is

Vsevolod [243]

Answer:

Explanation:

a variable does that dose not depend on that of another

6 0

2 years ago

According to the law of conservation of mass, what should the product side of this single replacement reaction look like? A. H2

Katyanochek1 [597]

Answer: The product side must be $ZnCl_2+H_2$

Explanation:

Single displacement reaction is defined as the reaction in which more reactive metal displaces a less reactive metal from its chemical reaction.

$AB+C\rightarrow CB+A$

Metal C is more reactive than metal A.

The reactivity of metal is determined by a series known as reactivity series. The metals lying above in the series are more reactive than the metals which lie below in the series.

Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form. This also means that total number of individual atoms on reactant side must be equal to the total number of individual atoms on the product side.

When zinc metal reacts with hydrochloric acid, it leads to the production of zinc chloride and hydrogen gas. The chemical reaction follows:

$Zn+2HCl\rightarrow ZnCl_2+H_2$

On reactant side:

Number of zinc atoms = 1

Number of hydrogen atoms = 2

Number of chlorine atoms = 2

On product side:

Number of zinc atoms = 1

Number of hydrogen atoms = 2

Number of chlorine atoms = 2

Hence, the product side must be $ZnCl_2+H_2$

8 0

3 years ago

A hydrated salt, MgSO4, weighing 3.211 g is heated in a crucible until reaching a constant weight. The weight of the anhydrous M

Novay_Z [31]

Magnesium sulfate is an inorganic salt with the formula MgSO4(H2O)x where 0≤x≤7. It is often encountered as the heptahydrate sulfate mineral epsomite (MgSO4·7H2O), commonly called Epsom salt.

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2 years ago

Determine a massa, em kg, de um material que está contida em um volume de 18L. Sabe-se que a densidade do material é de 0,9 g/cm

suter [353]

The question in English is "Determine the mass, in kg, of a material that is contained in a volume of 18L. It is known that the material density is 0.9 g/cm 3"

Answer:

We can use a simple equation to solve this problem. 
 d = m/v

Where d is the density, m is the mass and v is the volume.

d = 0.9 g/cm³
m = ?
v = 18 L = 18 x 10³ cm³

By applying the equation,
 0.9 g/cm³ = m / 18 x 10³ cm³
m = 0.9 g/cm³ x 18 x 10³ cm³
 m = 16200 g
m = 16.2 kg

Hence, the mass of 18 L of material is 16.2 kg.

6 0

2 years ago