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4 years ago

What do the symbols in parenthesis indicate?

Chemistry

2 answers:

Yanka [14]4 years ago

8 0

The physical state of each reactant and product

lukranit [14]4 years ago

3 0

Answer:

The physical state of each reactant and product

Explanation:

Chemical reactions are depicted in the form of an equation involving the chemical formula of the reactants and that of the products. The coefficients in front of the reactants and products represent the stoichiometry or the respective moles of the reaction participants.

In addition, the symbols in parenthesis placed after the chemical formula represent the physical state of the chemicals.

(s) = solid, (aq) = aqueous, (l) = liquid, (g) = gas

In the given reaction:

CaCl2(aq) + 2AgNO3(aq) → Ca(NO3)2(aq) + 2AgCl(s)

CaCl2, AgNO3 and Ca(NO3)2 are all in the aqueous phase

AgCl is in the solid phase

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Which compound contains both ionic and covalent

musickatia [10]

Answer:

(3) NaNO₃

Step-by-step explanation:

Sodium nitrate has ionic bonds, because it consists of Na⁺ and NO₃⁻ ions.

However, the nitrate ions have covalent bonds between the O atoms and the central N atoms.

(1) and (2) are wrong. Both N₂O₅ and HCl consist of nonmetals, so they are covalent compounds.

(4) is wrong. NaCl has only ionic bonds between the Na⁺ and Cl⁻ ions

7 0

3 years ago

Read 2 more answers

Consider the following reaction: SO2Cl2(g)⇌SO2(g)+Cl2(g) A reaction mixture is made containing an initial [SO2Cl2] of 2.2×10−2M

Andrej [43]

The value of equilibrium constant is equal to the quotient of the products raised to its stoichiometric coefficient over the reaction's reactants raised to its respective stoichiometric coeff. The equation is Kc=[SO2][Cl2]/[SO2Cl2]= [1.3*10^-2][1.3*10^-2]/[2.2*10^-2-1.3*10^-2]=0.0188. The final answer is Kc=0.0188.

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3 years ago

ITEM BANK: Move to Bottom

snow_tiger [21]

Compounds are formed when two or more elements are chemically combined.
When these elements are chemically combined, a new substance is formed with new chemical and physical properties.
An element is a pure substance that cannot be separated into simpler substances by physical or chemical means.
A compound is two or more elements combined chemically to produce a new substance.
When two or more elements chemically combine, the compound has new properties, different from the chemical and physical properties of the original elements.

<h3>What is a chemical element?</h3>

A chemical element can be defined as a pure substance which comprises atoms that have the same atomic number (number of protons) in its nuclei and as such it is the primary constituent of matter.

Generally, some examples of a chemical element include the following:

Argon.
Sodium.
Carbon.
Oxygen.
Hydrogen.
Phosphorus
Copper
Aluminum
Potassium
Magnesium

<h3>What is a pure substance?</h3>

A pure substance can be defined as a single sample of matter that cannot be separated into other kinds of matter through the use of any physical or chemical separating technique because it has distinct chemical properties and a definite and constant composition.

Read more on pure substances here: brainly.com/question/2056940

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2 years ago

Fill in the blanks to complete the idea of the sentences. Write your answers on a separate sheet of paper.

tiny-mole [99]

Explanation:

thank you thank you thank you for the points

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2 years ago

How is stoicheometry used to keep camels alive

Novay_Z [31]

Answer:

by heart beat camel lives

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3 years ago