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3 years ago

9

Explain why a mixture is used as the electrolyte??

1 answer:

natta225 [31]3 years ago

6 0

Answer:

You need a mixture of positive and negative ions

Explanation:

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Salts are composed of ions that form a tightly packed and ordered network, which is called a crystal lattice, and it is held tog

zimovet [89]

This is held together by the charges of anions and cations that are attracted to each other, which is the reason why crystal lattice is being formed beside the fct that it has tightly packed network. The crystal lattice are the crystals which has an arrangement that could be describe with its three dimensional feature.

3 0

4 years ago

Read 2 more answers

Calculate the energy, in joules, to heat two cubes (silver and copper), each with a volume of 10.0cm, from 15 C to 25 C

Julli [10]

Answer:

For Silver , The heat absorbed = <u>246.75 J</u>

For Copper , The heat is =<u> 343.42 J</u>

<u />

Explanation:

The change in temperature is calculated by:

$\Delta T=T_{2}-T_{1}$

T2 = 25 C

T1 = 15 C

$\Delta T=25-15$

$\Delta T=10^{0}C$

The energy in Joules can be calculated using :

$q=mc\Delta T$

here , m = mass of the substance

c = the heat capacity

q = heat absorbed / released

We need to calculate the mass , In order to determine the value of "q".

<u>Calculation for Silver :</u>

<u><em>The mass is calculated from the density of the element.</em></u>

density of Silver = 10.5 g/ml (look at the table of density)

Volume of Cube = 10 cm^3 (given)

1 cm^3 = 1 mL

10 cm^3 = 10 mL

The mass can be calculated using the formula:

$mass = density\times Volume$

$mass = 10.5\times 10$

$mass = 105grams$

Insert the value of m , c, T in the equation.

for Silver the value of "c"= 0.235 J/gC (Look at the table)

$q=mc\Delta T$

$q=105\times 0.235\times 10$

<u> $q=246.75J$ </u>

<u>Calculation for Copper:</u>

Again first calculate the mass of Copper.

Density of Copper = 8.92 g/ml

Volume = 10 mL

$mass = density\times Volume$

$mass = 8.92\times 10$

$mass = 89.2grams$

Insert the value of m , c, T in the equation.

for Silver the value of "c"= 0.385 J/gC (Look at the table)

$q=mc\Delta T$

$q=89.2\times 0.385\times 10$

<u> $q=343.42J$ </u>

8 0

3 years ago

As you move from left to right in the third period of the periodic table…

Pepsi [2]

Answer:

B

Explanation:

2.8.1 Na

2.8.2 Mg

and so on and so forth

8 0

2 years ago

Is mixing acid and base a chemical change or a physical change

gladu [14]

Answer : chemical reaction

Mixing an acid with a base is a common chemical reaction.

7 0

3 years ago

Read 2 more answers

Suppose you were doing the experiment with a 50 mL syringe. How many mL would you pull the plunger for each reading?

goldfiish [28.3K]

50 mL would be the answer

5 0

3 years ago