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3 years ago

3 point different between reactant and product

Chemistry

2 answers:

nevsk [136]3 years ago

5 0

Answer:

reactants

The substance(s) to the left of the arrow in a chemical equation are called reactants. A reactant is a substance that is present at the start of a chemical reaction

Explanation:

product_The substance(s) to the right of the arrow are called products . A product is a substance that is present at the end of a chemical reaction. In the equation above, the zinc and sulfur are the reactants that chemically combine to form the zinc sulfide product.

There is a standard way of writing chemical equations. The reactants are all written on the left-hand side of the equation, with the products on the right-hand side. An arrow points from the reactants to the products to indicate the direction of the reaction:

reactants → products

Lelechka [254]3 years ago

3 0

Reactants

1. The substances used as starting materials and which react with one another are reactants.

2. Example: In this reaction Mg and O2 are reactants.

Products

1. The substances which are formed as a result of reaction are products.

2. Example: In this reaction MgO is a product.

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A 500 mL hypertonic saline solution is labeled as consisting of 5.21 % w/w NaCl. Given that the density of salt water is 1.02 g/

kicyunya [14]

Answer: The molarity of saline solution is 0.909 M

Explanation:

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This means that 5.21 grams of NaCl is present in 100 grams of solution

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Putting values in above equation, we get:

$1.02g/mL=\frac{100g}{\text{Volume of solution}}\\\\\text{Volume of solution}=\frac{100g}{1.02g/mL}=98.04mL$

To calculate the moalrity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}$

Given mass of NaCl = 5.21 g

Molar mass of NaCl = 58.44 g/mol

Volume of solution = 98.04 mL

Putting values in above equation, we get:

$\text{Molarity of solution}=\frac{5.21\times 1000}{58.44g/mol\times 98.04}\\\\\text{Molarity of solution}=0.909M$

Hence, the molarity of saline solution is 0.909 M

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classify each of the following as a pure substance or a mixture. if it is a mixture is it homogenous sea water ice cubes lemonda

KATRIN_1 [288]

Pure substance - Ice cubes

Mixture - Homogenous sea water , lemonade

Pure substance are the substance which have constant chemical composition and characteristic.

Mixture is material made up of two or more chemical substance which are not chemical bonded. These materials in mixture are not in definite proportion.

As water ice cubes has only water in it thus it is pure substance.

Homogeneous sea water contains various salts and impurities in it thus it is mixture.

Lemonade contains lemon juice and water in it . Thus, it is mixture.

To know more about pure substance and mixture

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2 years ago

3 point different between reactant and product​

3 point different between reactant and product