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Elodia [21]
3 years ago
6

3. Joseph took some sodium hydroxide solution in a petri dish and dipped a red litmus paper into it. The red litmus paper turned

blue. He took vinegar in the same petri dish and dipped blue litmus paper. It did not turn red. (Vinegar, being an acid, must turn blue litmus to red) What may be the reason for this? ​
Chemistry
1 answer:
olasank [31]3 years ago
7 0

Answer:

Blue Litmus will change into red if it is added in sodium hydroxide

Explanation:

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Explain the word atomic number only​
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Answer:

<em>atomic number, the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number.</em>

Explanation:

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indicate whether the statement is true or false a change of state is a chemical change because ice and water do not resemble one
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mario62 [17]

Answer:

Fluids (air/water) either as water vapour or oxygen and carbon dioxide.

Explanation:

Heat transfer occurs through conduction, convection or radiation.

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Can some one please help me with this question with the steps please, thanks in advance ​
tekilochka [14]

The molecular formula for Hydrocarbon =  C₄H₁₀

<h3>Further explanation:</h3>

Given

50 ml hydrocarbon

200 ml CO₂

250 ml H₂O

Required

The molecular formula of Hydrocarbon

Solution

From Avogadro's hypothesis, at the same temperature and pressure, the ratio of gas volume will be equal to the ratio of gas moles  

So moles Hydrocarbon : CO₂ : H₂O = 50 ml : 200 ml : 250 ml = 1 : 4 : 5

mol C in 1 mol CO₂=1, and for 4 moles CO₂ there are 4 moles C

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So mol ratio C : H in compound = C₄H₁₀

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