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2 years ago

Which solution when mixed with a drop of bromthymol blue will cause the indicator to change from blue to yellow?

Chemistry

1 answer:

Mashutka [201]2 years ago

3 0

When you mix 0.1 M HCI, with a drop of brothymol blje, this will make the incubator to change from blue to yellow.

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A logical conclusion based on observations is called an inference.

Roman55 [17]

ANSWER: True
EXPLANATION: An inference is a logical conclusion based on observations.

Hope it helps u!

5 0

2 years ago

Read 2 more answers

Match each definition to the vocabulary word

kirill115 [55]

Answer:

1) prokaryote : no nucleus and is unicellular

2)nucleus : contains genetic information

3) structure: the way it is made

4) eukaryotes : has a nucleus , some are unicellular

5) organelles : perform the different functions the cell need

6) tissue: composed of many cell

7)cell : basic units of Life

8) Mathias schleiden : concluded that all plants are made up of cell

9) Theodore Schwann :concluded all animals are made up of cell

10) Rudolf Virchow : concluded that all cells come from pre-existing cell

5 0

3 years ago

if you mixed 72.9g hydrochloric acid(aq) with 150g silver acetate(aq), what would be the limiting reagent?

horsena [70]

Answer:

Silver Acetate would be the Limiting Reagent.

Explanation:

The balance chemical equation for the given double displacement reaction is as;

HCl + AgC₂H₃O₂ → AgCl + HC₂H₃O₂

Step 1: Calculate Moles of Starting Materials:

Moles of HCl:

Moles = Mass / M.Mass

Moles = 72.9 g / 36.46

Moles = 1.99 moles

Moles of AgC₂H₃O₂:

Moles = 150 g / 166.91 g/mol

Moles = 0.898 moles

Step 2: Find out Limiting reagent as:

According to balance chemical equation.

1 mole of HCl reacts with = 1 mole of AgC₂H₃O₂

So,

1.99 moles of HCl will react with = X moles of AgC₂H₃O₂

Solving for X,

X = 1.99 mol × 1 mol / 1 mol

X = 1.99 mol of AgC₂H₃O₂

Hence, to completely consume 1.99 moles of Hydrochloric acid we will require 1.99 moles of Silver Acetate, But, we are provided with only 0.898 moles of Silver Acetate. This means Silver Acetate will consume first in the reaction therefore, it is the LIMITING REAGENT.

8 0

3 years ago

Why is carbon dioxide nonpolar?

vovikov84 [41]

CO2 is a linear molecule and the Oxygen (O) atoms on each end are symmetrical. Polarity results from an unequal sharing of valence electrons. Because of this symmetry there is no region of unequal sharing and CO2 is anonpolar molecule

8 0

3 years ago

When metallic aluminum is added to a solution containing iron(II) sulfate a reaction occurs. What species is being oxidized in t

REY [17]

Answer: Aluminium is getting oxidized in the given chemical reaction.

Explanation:

Oxidation reaction is defined as the chemical reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.

$X\rightarrow X^{n+}+ne^-$

Reduction reaction is defined as the chemical reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

$X^{n+}+ne^-\rightarrow X$

For the given chemical reaction:

$2Al(s)+3FeSO_4(aq.)\rightarrow Al_2(SO_4)_3(aq.)+3Fe(s)$

The half cell reactions for the above reaction follows:

Oxidation half reaction: $Al\rightarrow Al^{3+}+3e^-$

Reduction half reaction: $Fe^{2+}+2e^-\rightarrow Fe$

As, aluminium is loosing 3 electrons to form aluminium cation. Thus, it is getting oxidized. Iron is gaining 2 electrons to form iron anion. Thus, it is getting reduced.

Hence, the oxidized species of the given reaction is aluminium.

4 0

2 years ago