The pH indicator bromothymol blue is blue in an alkaline solution and yellow

finlep [7]

Hello,

Adding an inhibitor to a chemical reaction will have which of the following effects on a reaction?

d. the inhibitor will increase the rate of reaction.

hope this help you
may i please have a brainliest

8 0

3 years ago

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Which of the following statements best describes the similarities between beryllium, magnesium,calcium, and strontium?

Schach [20]

I didn't see any statements, but here are some similarities of those elements:

They all have the same number of valence electrons, they will become cations, they all will lose 2 electrons, they will behave similarly in chemical reactions, they have similar chemical properties, they all are in the alkaline earth metal family. Hope this helps! :)

7 0

4 years ago

(45 pts) What is the theoretical yield (in g) of iron(III) carbonate that can be produced from 1.72 g of iron(III) nitrate and a

mote1985 [20]

Answer:

1.04g of iron III carbonate

Explanation:

First, we must put down the equation of reaction because it must guide our work.

2Fe(NO3)3(aq) + 3Na2CO3(aq)→Fe2(CO3)3(s) + 6NaNO3(aq)

From the question, we can see that sodium carbonate is in excess while sodium nitrate is the limiting reactant.

Number of moles of iron III nitrate= mass of iron III nitrate reacted/ molar mass of iron III nitrate

Mass of iron III nitrate reacted= 1.72g

Molar mass of iron III nitrate= 241.88 g∙mol–1

Number of moles of iron III nitrate= 1.72g/241.88 g∙mol–1= 7.11×10^-3 moles

From the equation of the reaction;

2 moles of iron III nitrate yields 1 mole of iron III carbonate

7.11×10^-3 moles moles of iron III nitrate yields 7.11×10^-3 × 1/ 2= 3.56×10^-3 moles of iron III carbonate

Theoretical mass yield of iron III carbonate = number of moles of iron III carbonate × molar mass

Theoretical mass yield of iron III carbonate = 3.56×10^-3 moles ×291.73 g∙mol–1 = 1.04g of iron III carbonate

8 0

3 years ago

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A student was given two clear liquids; a colorless liquid and a dark-blue liquid. The student was asked to combine the liquids i

Anon25 [30]

Answer:

The correct option is;

a) The resulting mixture was cloudy

Explanation:

Here we have the initial color as

1. Colorless and

2. Dark blue

We analyze each of the results as follows

a) The resulting mixture was cloudy

A cloudy mixture forming when the two liquids are mixed is most likely due to the formation of a suspension from a new substance That is a new compound is formed

b) The total volume of the mixture was equal to the sum of the initial volumes.

Here since there is no change in the physical properties as the volume of the mixture is the sum of the volumes of the constituent then there is unlikely to be a chemical change

c) The resulting liquid was light blue

Here, the observation is more of a physical change

d) The liquids formed two separate layers in the beaker.

This is an indication that there was no mixing of the liquids hence no reaction or chemical change.

7 0

3 years ago

Molecules at a higher temperature have _______ kinetic energy, speed, and momentum compared to molecules at a lower temperature.

Serga [27]

Answer:

Molecules at a higher temperature have higher/more kinetic energy, speed, and momentum compared to molecules at a lower temperature.

Explanation:

8 0

2 years ago