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Savatey [412]
3 years ago
5

Write a balanced molecular equation describing each of the following chemical reactions.

Chemistry
1 answer:
yuradex [85]3 years ago
4 0

Answer:

don't know..............

You might be interested in
Please help me, Thank you!
Phantasy [73]

Answer:

2

Explanation:

The atom shown in the image has 2 core electrons.

Electrons are the negatively charged particles within an atom. Therefore the total number of electrons surrounding the nucleus in the given specie is 7.

 So;

   We have 2 core electrons

   And 5 valence electrons

The core electrons are the inner orbital electrons.

The valence electrons are the outermost electrons.

3 0
3 years ago
What is the main difference between ionic<br> compounds and molecular compounds?
Sophie [7]

Answer:

¨molecular compounds are formed by the sharing of electrons, and ionic compounds are formed by the transfer of electrons¨

Explanation:

3 0
3 years ago
A silver block, initially at 57.2 ∘C, is submerged into 100.0 g of water at 24.8 ∘C, in an insulated container. The final temper
Masteriza [31]

Answer:

96.5 grams is the mass of the silver block.

Explanation:

Heat lost by iron will be equal to heat gained by the water

-Q_1=Q_2

Mass of iron = m_1=?

Specific heat capacity of silver= c_1=0.240 J/g^oC

Initial temperature of the silver= T_1=120^oC

Final temperature = T_2=T=26.5^oC

Q_1=m_1c_1\times (T-T_1)

Mass of water= m_2=100.0 g

Specific heat capacity of water= c_2=4.184 J/g^oC

Initial temperature of the water = T_3=24.8 ^oC

Final temperature of water = T_2=T=26.5^oC

Q_2=m_2c_2\times (T-T_3)

-Q_1=Q_2

-(m_1c_1\times (T-T_1))=m_2c_2\times (T-T_3)

On substituting all values:

-(m_1\times 0.240 J/g^oC\times (26.5^oC-57.2^oC))=100.0 g\times 4.184 J/g^oC\times (26.5^oC-24.8^oC)

we get, m_1 = 96.5 g

96.5 grams is the mass of the silver block.

5 0
3 years ago
The pressure of a 250 mL sample of gas is 105 kPa. What would be the pressure if the volume were increased to 375 ml?
Arte-miy333 [17]

Answer:

<h2>The answer is 70 kPa</h2>

Explanation:

In order to find the pressure if the volume were increased to 375 ml we use Boyle's law

That's

P_1V_1 = P_2V_2

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we are finding the final pressure

P_2 =  \frac{P_1V_1}{V_2}  \\

From the question

P1 = 105 kPa = 105 , 000 Pa

V1 = 250 mL

V2 = 375 mL

So we have

P_2 =  \frac{105000 \times 250}{375}  =  \frac{26250000}{375}  \\  = 70000

We have the final answer as

<h3>70 kPa</h3>

Hope this helps you

8 0
4 years ago
In the double replacement reaction between na2so4 (aq) and bacl2 (aq), will a precipitate form?
bagirrra123 [75]
A precipitate will form since BaSO₄ is insoluble in water.
8 0
4 years ago
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