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g100num [7]
3 years ago
15

What is the equilibrium expression for the reaction below? 2Na(s) + 02) Na2O2,(s)

Chemistry
1 answer:
iogann1982 [59]3 years ago
3 0

Answer:

{ \tt{k _{c} = \frac{[Na_{2} O _{2} ]}{[Na] {}^{2} [O _{2} ]}  }}

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Mumz [18]

Answer:

He should eat fruits and vegetables and also skip

8 0
3 years ago
An organic one of these will usually contain carbon and hydrogen.
Oksanka [162]
The answer will be A
7 0
3 years ago
Read 2 more answers
Which of these statements describes a physical property of hydrogen? Group of answer choices it is found in acids. it is less de
pochemuha

Answer:

it is less dense than oxygen gas.

Explanation:

Hydrogen is the simplest chemical element that exists. The symbol for the chemical element Hydrogen is "H" and it is a colourless, tasteless, odorless, and highly flammable gas.

Hydrogen is a chemical element found in group (1) of the periodic table and as such it has one (1) electrons in its outermost shell. Therefore, Hydrogen has an atomic number of one (1) and a single valence electrons because it has only one proton and one electron in its nucleus.

In Chemistry, the properties of a chemical element that can be observed and measured without changing its chemical nature is known as a physical property. It includes density, color, freezing point, opacity, smell, melting point, viscosity, etc.

Hence, the statement which describes a physical property of hydrogen is that it is less dense (density) than oxygen gas.

7 0
3 years ago
Which of the following pairs of reactants is not correctly listed with its product solution? A. Strong acid-strong base reactant
gizmo_the_mogwai [7]
<span>It makes no difference which reactant is placed first, a strong acid combined stoichiometrically with a strong base will produce a neutral solution. Due to hydrolysis, a weak acid and strong base produce a basic solution when combined stoichiometrically, and a weak base and strong acid produce an acidic solution when combined stoichiometrically

Mark as brainlist please if correct! BTW have a blessed day!</span>
5 0
3 years ago
How many moles of sodium carbonate na2co3 are contained by 57.3 g of sodium carbonate
yan [13]
There are 0.54 moles of sodium carbonate are contained by  57.3 grams of sodium carbonate.

we can calculate number of moles in a compound by dividing number of grams of compound by the molar mass of the compound.
molar mass of sodium carbonate = 105.987 g/mol
now, 57.3 / 105.987 = 0.54 moles
6 0
4 years ago
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