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77julia77 [94]
3 years ago
8

Give me a example of a chemical reaction.

Chemistry
2 answers:
attashe74 [19]3 years ago
5 0

Answer:

CH4 + 2 O2 >>> CO2 +2 H2O.............

frutty [35]3 years ago
4 0

Chemical reactions are an integral part of technology, of culture, and indeed of life itself. Burning fuels, smelting iron, making glass and pottery, brewing beer, and making wine and cheese are among many examples of activities incorporating chemical reactions that have been known and used for thousands of years. Chemical reactions abound in the geology of Earth, in the atmosphere and oceans, and in a vast array of complicated processes that occur in all living systems.

Chemical reactions must be distinguished from physical changes. Physical changes include changes of state, such as ice melting to water and water evaporating to vapour. If a physical change occurs, the physical properties of a substance will change, but its chemical identity will remain the same. No matter what its physical state, water (H2O) is the same compound, with each molecule composed of two atoms of hydrogen and one atom of oxygen. However, if water, as ice, liquid, or vapour, encounters sodium metal (Na), the atoms will be redistributed to give the new substances molecular hydrogen (H2) and sodium hydroxide (NaOH). By this, we know that a chemical change or reaction has occurred.

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aleksandr82 [10.1K]

Answer:

because it decompose

Explanation:

yeast is an organic compound

7 0
3 years ago
1.5 moles are present in 60.0 grams of calcium.
Andrew [12]

Answer:

True.

Explanation:

To know which option is correct, let us calculate the number of mole present in 60g of calcium. This is illustrated below:

Mass of Ca = 60g

Molar Mass of Ca = 40g/mol

Number of mole Ca =....?

Number of mole = Mass/Molar Mass

Number of mole of Ca = 60/40

Number of mole Ca = 1.5 moles.

From the calculations made above, we can see that 1.5 moles are present in 60.0 grams of calcium

3 0
3 years ago
15-9+6+3 =? What's the answer of this? ​
julia-pushkina [17]
15-9+6+3=

ANSWER

15
6 0
3 years ago
BRAINLIESTTT ASAP!!! PLEASE HELP ME :)
djyliett [7]

They are stronger than hydrogen bonding forces.

3 0
3 years ago
Read 2 more answers
What is the molar solubility of AgCl in a 0.050 M NaCl solution? The Ksp of AgCl is 1.6 x 10-10. (Assume that the contribution o
Hitman42 [59]

The molar solubility of AgCl:

The molar solubility of AgCl in a 0.050 M NaCl solution is 8 x 10^{-8} M Ag^{+}

What is solubility?

The solubility is the quantity of reagent required to saturate the solution or bring about the dissociation reaction's equilibrium.

Reaction:

The dissociation reaction of AgCl in water is:

AgCl  ⇄ Ag^{+} + Cl^{-}

Each mole of AgCl that dissolves in this reaction yields 1 mole of both Ag^{+} and  Cl^{-}. The concentration of either the Ag or Cl ions would then be equal to the solubility.

Solubility= [Ag^{+}] = [Cl^{-}]

Calculation:

in 0.050 M NaCl, the [Cl^{-}] = 1 x 10^{-2}

ksp = [Ag^{+}] x [Cl^{-}]

1.6 x 10^{-10} = [Ag{+}] x ( 5 x 10^{-2})

[Ag^{+}] = 5 x 10^{+2} x 1.6 x 10^{-10}

[Ag^{+}] = 5 x 1.6 x 10^{-10+2}

[Ag^{+}] = 8 x 10^{-8} M

Learn more about molar solubility here,

brainly.com/question/13202097

#SPJ4

8 0
2 years ago
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