Which type of reaction is NaCI + AgNO3 NaNO + AgCI?
O synthesis
O decomposition
O oxidation
O replacement

replacement

Explanation:

There are two types of replacement reactions.

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

AB + CD → AD +CB

Single replacement:

It is the reaction in which one elements replace the other element in compound.

AB + C → AC + B

The given reaction is double replacement reaction because anion and cation of both reactants exchanged with each other.

Other options are incorrect because,

Decomposition reaction:

It is the reaction in which one reactant is break down into two or more product.

AB → A + B

Synthesis reaction:

It is the reaction in which two or more simple substance react to give one or more complex product.

Oxidation:

Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"