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3 years ago

1. In a compound, chemical energy is contained in the (1 point)

2 answers:

8 0

1. Potential of a chemical substances to undergo transformation in a chemical reaction is known as chemical energy. The chemical energy is stored in the bonds of chemical compounds.

Hence, in a compound, chemical energy is contained in bonds.

2. The process in which one or more substance known as reactants are converted to one or more completely new substances known as products are formed is known as a chemical reaction.

Hence, during a chemical reaction bonds of the reactants are broken, and bonds of the products are formed.

Kaylis [27]3 years ago

7 0

1.C 2.A are the answer to the following questions.

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An unfortunate squirrel is hit by a car. A small bit of gas originally 0.005 L in volume is trapped in the squirrel's body at a

kykrilka [37]

Answer: The volume of the gas in the squirrel now is 0.00532 L

Explanation:

To calculate the final volume of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

$\frac{V_1}{T_1}=\frac{V_2}{T_2}$

where,

$V_1\text{ and }T_1$ are the initial volume and temperature of the gas.

$V_2\text{ and }T_2$ are the final volume and temperature of the gas.

We are given:

$V_1=0.005L\\T_1=308K\\V_2=?\\T_2=328K$

Putting values in above equation, we get:

$\frac{0.005}{308}=\frac{V_2}{328}\\\\V_2=0.0053L$

Thus the volume of the gas in the squirrel now is 0.00532 L

3 0

3 years ago

5. If 10.0 gram of aluminum chloride are decomposed, how many molecules of Cl, are<br> produced?

torisob [31]

Answer: 6.77*1022 Molecules

Explanation: :)

8 0

3 years ago

In the compound 5Cr2O3 the 5 represents

Liono4ka [1.6K]

Answer:

a.hshshdhdjsjshsb

b.hsjshdhdhd

8 0

3 years ago

Read 2 more answers

What is the required molarity of a ba(oh)₂ solution to prepare a 1.0 m oh⁻ solution?

timurjin [86]

The molarity of a Ba(OH)2 solution required to prepare a1.0 OH- solution is calculated as follows

write the equation for dissociation of Ba(Oh)2

that is,

Ba(Oh)2 -----> Ba^2+ + 2Oh-

by use of reacting ratio between Ba(Oh)2 to Oh which is 1:2 the molarity of Ba(oh)2 = 1.0/2 = 0.5 M

8 0

4 years ago

Read 2 more answers

Silver metal is expensive and should always be recycled. If your lab has 0.500 L of silver nitrate solution (2 .00 mol* L^ -1 )

Paladinen [302]

Mass of Copper : 63.5 g

<h3>Further explanation</h3>

Given

Reaction

Cu(s)+2AgNO₃ (aq) ⇒Cu(NO₃)₂ (aq)+2Ag(s)

Required

Mass of Copper

Solution

mol of Silver nitrate :

= M x V

= 2 mol/L x 0.5 L

= 1

From the equation, mol ratio of Cu : AgNO₃ = 1 : 2, so mol Cu = 1

Mass of Cu(Ar=63.5 g/mol) :

= mol x Ar

= 1 x 63.5

= 63.5 g

5 0

3 years ago