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3 years ago

Why are clay minerals used in pottery making or the characteristics that made them use in it I will Will make u brainiest

1 answer:

swat323 years ago

8 0

Clay is used in pottery for its ability to be manipulated by the bare hands of humans, and it dries very quickly. Since you dont need a lot of equipment, it was a high paying job back in the old times. An advantage of clay that it can keep the water cool for a long time as long as you cover the container.

Another advantage is that clay doesnt react with the liquids or food inside when heat is applied ( Unlike plastic)

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What is an example of conduction

Alexandra [31]

Explanation:When the stove turns on the skillet will become very hot because of the conduction of heat transferring from the stove to the skillet.

7 0

3 years ago

How many grams of magnesium oxide are formed if 20.9 grams of Mg and 15.2 g of O2 react.

anyanavicka [17]

Answer:

Mass of magnesium oxide formed = 35.1 g

Explanation:

Given data:

Mass of Mg = 20.9 g

Mass of O₂ = 15.2 g

Mass of magnesium oxide formed = ?

Solution:

Chemical equation:

2Mg + O₂ → 2MgO

Number of moles of Mg:

Number of moles = mass/molar mass

Number of moles = 20.9 g/ 24 g/mol

Number of moles = 0.87 mol

Number of moles of O₂:

Number of moles = mass/molar mass

Number of moles = 15.2 g/ 32 g/mol

Number of moles = 0.475 mol

Now we will compare the moles of MgO with magnesium and oxygen.

Mg : MgO

2 : 2

0.87 : 0.87

O₂ : MgO

1 : 2

0.475 : 2/1×0.475 = 0.95

Number of moles of MgO formed by Mg are less thus Mg will limiting reactant.

Mass of MgO:

Mass = number of moles × molar mass

Mass = 0.87 mol × 40.3 g/mol

Mass = 35.1 g

6 0

3 years ago

Plz help on chemsitry i really need your help plz answer at least one if you dont understand ask questions plz i need your help!

levacccp [35]

Are you like suppose to mix them together? to get another element?

7 0

4 years ago

PREDICT THE PRODUCTS AND BALANCE THE EQUATION FeCl2 (aq)+K2NO3 (aq) →

Lyrx [107]

Answer:

see below

Explanation:

Swap cations and anions

K2NO3 is not balanced, it is either 2KNO3 or KNO3 and only 2KNO3 works in this case

FeCl2 (aq)+KNO3 (aq) → Fe(NO3)2 (aq) + 2KCL (aq)

3 0

2 years ago

Write balance complete molecular equation, ionic equation, and net ionic equations for the reactions that occur when each of the

AveGali [126]

Answer: The complete molecular, ionic, and net ionic equations are given below. The spectator ions are sodium and nitrate ions.

Explanation:

The ionic equation is defined as the equation in which all the substances that are strong electrolytes present in an aqueous state and are represented in the form of ions.

The net ionic equation is defined as the equations in which spectator ions are not included.

Spectator ions are the ones that are present equally on the reactant and product sides. They do not participate in the reaction.

The balanced molecular equation for the reaction of lead (II) nitrate and sodium sulfide follows:

$Pb(NO_3)_2(aq)+Na_2S(aq)\rightarrow PbS(s)+2NaNO_3(s)$

The ionic equation follows:

$Pb^{2+}(aq)+2NO_3^-(aq)+2Na^+(aq)+S^{2-}(aq)\rightarrow PbS(s)+2Na^+(aq)+2NO_3^-(aq)$

As sodium and nitrate ions are present on both sides of the reaction. Thus, they are considered spectator ions.

The net ionic equation follows:

$Pb^{2+}(aq)+S^{2-}(aq)\rightarrow PbS(s)$

3 0

3 years ago