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Tanya [424]
2 years ago
14

Which is a characteristic of a synthesis reaction

Chemistry
2 answers:
V125BC [204]2 years ago
8 0
Answer:option A
Multiple reactants are used to form one product.
Igoryamba2 years ago
6 0

Answer : The correct option is, (A) There is more than one reactant.

Explanation :

Synthesis reaction : Synthesis reaction are those reactions in which more than one reactants react to form a single product or a compound.

The general representation of the synthesis reaction is,

A+B\rightarrow AB

In this, A and B are the reactants and AB is the product.

For example : formation of calcium hydroxide from calcium oxide and water.

CaO(s)+H_2O(l)\rightarrow Ca(OH)_2(s)

Hence, the correct answer is, (A)

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Compounds have the same properties as the elements they are made up of. Is it true or false
hodyreva [135]
( False ) this the answer
6 0
3 years ago
Please help!!! Stoich Question
Greeley [361]

Answer:

4KO₂ + 2CO₂ -> 2K₂CO₃ + 3O₂

<u> Step 1: Find the moles of O₂.</u>

n(O₂) = mass/ Mr.

n(O₂) = 100 / 32 = 3.125 mol

<u>Step 2: Find the ratio between KO₂ and O₂.</u>

        <u>KO₂ </u>    :      <u> O₂</u>

          4        :       3

        4/3       :       1

  (4*3125)/3  :      3.125

=4.167 mol of KO₂

Thus now we know, to produce 100 g of O₂, we need 4.167mol of KO₂

<u>Step 3: Find the mass of KO₂:</u>

<u />

mass = mol * Mr. (KO₂)

Mass = 4.167* 71.1

Mass = 296.25 g

5 0
2 years ago
A buffer contains significant amounts of ammonia and ammonium chloride. part a write an equation showing how this buffer neutral
siniylev [52]
Hello!

When HI is added, the buffer reacts in the following way:

1) Neutralizing of the Acid:

HI + NH₄OH → NH₄I + H₂O

2) Dissociation of the salt of a weak acid:

NH₄I → NH₄⁺(aq) + I⁻ (aq)

3) Dissociation of a weak acid to form H₃O⁺ (very little):

NH₄⁺ + H₂O ⇄ NH₃ + H₃O⁺

This series of reactions show how the adding of a strong Acid can be neutralized by the buffer, releasing instead very little amounts of Hydronium ions.

Have a nice day!
8 0
3 years ago
An unknown substance is measured. It has a mass of 0.221 g and a volume of 2.25 mL. What is its density?
Alex Ar [27]

Answer:

d ≈ 0.098 g/mL

Explanation:

The density of a substance can be found by dividing the mass by the volume.

d=m/v

The mass of the substance is 0.221 grams and the volume is 2.25 milliliters.

m= 0.221 g

v= 2.25 mL

Substitute the values into the formula.

d= 0.221 g / 2.25 mL

Divide

d= 0.098222222 g/mL

Let’s round to the nearest thousandth. The 2 in the ten thousandths tells us to keep the 8 in the thousandth place.

d ≈ 0.098 g/mL

The density of the substance is about 0.098 grams per milliliter.

6 0
2 years ago
Read 2 more answers
What will be the observations for the reaction: CuSO4(aq) + NaOH(aq)? Its a two mark question so two observations at least.
julia-pushkina [17]
The chemical reaction would be:

<span>CuSO4(aq) + NaOH(aq) = Cu(OH)2(s) + Na2SO4(aq)

One observation would be the formation of a precipitate since one of the products is not readily soluble to aqueous solution. A formation of a blue precipitate will be observed.</span>
6 0
3 years ago
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