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adoni [48]
3 years ago
6

Match the number with the correct type of reaction it is.

Chemistry
2 answers:
JulsSmile [24]3 years ago
7 0

Answer:

1. → D, 2.→ A, 3. → B, 4. → C.

Explanation:

1.  Na^+ + Cl^- \rightarrow NaCl

Synthesis reaction is a type of chemical reaction in which two more reactants combines together to form a single product.

2. CCl_4\rightarrow C + 2Cl_2

Decomposition reaction is a type of chemical reaction in which a single compound break down into its constituting elements.

3. H^+Cl^- + Na^+OH^-\rightarrow Na^+Cl^- + H_2O

Exchange reaction is a type of chemical reaction in which ions of reactant exchange their respective position with each other to form a new substance as a product.

4. ADP + P + E → ATP

Reversible reaction is a type of chemical reaction which reversed. In this reactants on reaction gives products and when products are made to react gives reactant as product.

oksian1 [2.3K]3 years ago
5 0
The correct matches are as follows:

<span>1. Na+ + Cl- → NaCl 
</span>D. synthesis reaction<span>

2. CCl4 → C + 2Cl2 
</span>A. decomposition reaction<span>

3. H+Cl- + Na+OH- → Na+Cl- + H2O 
</span>B. exchange reaction<span>

4. ADP + P + E ATP 
</span><span>C. reversible reaction 
</span>
Hope this answers the question. Have a nice day.
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The average propane cylinder for a residential grill holds approximately 18 kg of propane. how much energy (in kj) is released b
Angelina_Jolie [31]
Let's begin with the basic values  that will be used in the solution.

The formula of propane is C3H8. It is an alkane, a hydrocarbon with the general formula of CnH2n+2. Notice that hydrocarbons have only Carbon and Hydrogen atoms. Its molar mass (M) is 44 g.

Molar Mass Calculation is done as like that
C=12 g/mol, H=1 g/mol. 1 mole propane has 3 moles Carbon atoms and 8 mole Hydrogen atoms. M(
C3H8)= 3*12+ 8*1= 44 g

Combustion reaction of hydrocarbons gives carbon dioxide and water by releasing energy. That energy is called as enthalpy of combustion (
ΔHc°).  

ΔHc° of propane equals -2202.0 kj/mol. Burning of 1 mole C3H8 releases 2202 kj energy. Minus sign only indicates that the energy is given out ( an exothermic reaction ).

Let's write the combustion reaction.
C3H8 + O2 ---> CO2 + H20 (unbalanced) 
ΔHc° = -2202 kj/mol

Now, we calculate mole of 20 kg propane. Convert kilogram into gram since we use molar mass is defined in grams.
mole=mass/molar mass ; n=m/M ; n= 20000 g /44 (g/mol)=454 mole

1 mole propane releases 2202 kj energy.
454 mole propane release 2202 kj *454= 1000909 kj

The answer is 1000909 kj.



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3 years ago
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4 0
3 years ago
Calcium’s atomic number is 20. it forms ions with 18 electrons. what is the electrical charge of a calcium ion?
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If the mass of the object below is 28g, what is the density of the object below. Units are in cm below. Please round your answer
Murljashka [212]

Answer:

d = 0.93 g/cm³

Explanation:

Given data:

Mass of object = 28 g

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density of object = ?

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by putting values,

d = 28 g/ 30 cm³

d = 0.93 g/cm³

3 0
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