CHEMISTRY HIGH SCHOOL

Which of these 1 M solutions will have the highest pH?(1) NaOH (3) HCl(2) CH3OH (4) NaCl

Answers

Answer 1
Answer:

Answer:

(1) NaOH

Explanation:

NaOH, sodium hydroxide is a base. HCl, hydrochloric acid is an acid. CH3OH, methanol is an alcohol. NaCl, sodium chloride is salt.  

pH below 7.0 is acidic, pH above 7.0 is basic, and pH at 7.0 is neutral.  

Since NaOH is the only base in among the given compounds, its pH will above 7.0. Therefore, NaOH will have the highest pH.  
Answer 2
Answer:

Final answer:

NaOH solution will have the highest pH.

Explanation:

The solution with the highest pH would be the one that is basic, as basic solutions have higher pH values. Among the given options, NaOH is a strong base and dissociates completely in water to produce OH- ions, which makes the solution highly basic.

Learn more about pH of solutions here:

brainly.com/question/34831162

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Please help ASAP ty :)

Someone help!! ( alkenes )

Answers

2.1) An unsaturated molecule is one that has double bonds

The two molecules with double bonds are B and E

2.2) The molecular formula for a molecule with a single double-bond is “CnH2n”

So it would be C4H8

2.3) I’m not sure what the answer to this one is, sorry...Oxidation maybe?

What's the balanced equation for cellular respiration?

Answers

Correct answer is:

C_(6)H_(12)O_6+6O_(2)\Rightarrow 6CO_(2)+6H_(2)O+energy

But how to get there?

Let's start with simple explanation of what exactly is cellular respiration. 

Cellular respiration is a multistage biochemical oxidation process of organic substances when prime product is energy (ATP - adenosine triphosphate) and other are released waste products. Cellular respiration takes place even if other metabolic processes are stopped, but cellular respiration may differ in particular organism groups.Some reactions during whole process of cellular respiration are similar in all types of living organisms.

Cellular respiration is prime indication of declining living processes.Only viruses which are on the edge of living organism and chemical particle are not performing cellular respiration.But to the point :P

In cellular respiration all substrates which are in the cell might be organic, but mostly we are using sugar oxidation - glucose in the presence of oxygen. Chemical formula of sugar looks like this:

C_(6)H_(12)O_6

Oxygen is just

O_2

so for now we have just part of the equation:

C_(6)H_(12)O_6+O_(2)\Rightarrow

But what would be on the right hand side?

It's quite simple, remember equation of full combustion? If we want to burn something we need oxygen like in the equation, so the product of this equation would be carbon dioxide, water and of course energy (ATP).Carbon dioxide formula looks like this:

CO_(2)

As a reminder water formula:

H_(2)O

Full formula would look like that:

C_(6)H_(12)O_6+O_(2)\Rightarrow\ CO_(2)+H_(2)O+energy

But still as you see this equation is unbalanced, after balancing it would like that:

C_(6)H_(12)O_6+6O_(2)\Rightarrow 6CO_(2)+6H_(2)O+energy

At the end I would like to explain one more thing. Energy which has been released during this process is part of high-energy connection which might be used to perform chemical reactions in the cell or to move organism for example in muscles. We need to remember that production of ATP is not happening with 100% efficiency and part of this energy is released as heat.

A(n) _____ reaction is a self-sustaining series of chemical reactions in which the product of one reaction are the reactsnts in the next reaction.* not a multiple choice *

Answers

Answer : The answer is, Chain reaction.

Explanation :

Chain reaction : It is defined as the series of successive elementary processes in which the active intermediate species are consumed and regenerated before the products are obtained.

It is a self-sustaining series of the chemical reactions where the product obtained from one reaction are the reactants in the next reaction and so on.

Hence, a chain reaction is a self-sustaining series of chemical reactions in which the product of one reaction are the reactants in the next reaction.
it is called a Chain reaction

What does the symbol 2CO represent in the model below? 2CO + o^2 -> 2CO2

Answers

Answer: a reactant

Explanation: online physics class

Answer:2CO (g) + O2 (g) 2CO2 (g)This Equation Means That No Matter How Much Carbon Monoxide And Oxygen ... Question: 2CO (g) + O2 (g) 2CO2 (g)This Equation Means That No Matter How Much Carbon Monoxide And Oxygen Gas Is Added To The Flask, Only 2 Moles Of CO And 1 Mole Of O2 Will React To Make Two Moles Of Co2.What Is Wrong With This Statement?

Explanation:

3. the closeness of a measurment to its true value is a measure of its ____ ?

Answers

The closeness of a measurement to its true value is a measure of its Accuracy.

How many grams of water will form if 10.54 g H2 react with 95.10 g O2

Answers

Answer : The amount of water will be, 94.86 grams

Solution :

First we have to calculate the moles of H_2 and O_2.

\text{Moles of }H_2=\frac{\text{Mass of }H_2}{\text{Molar mass of }H_2}=(10.54g)/(2g/mole)=5.27moles

\text{Moles of }O_2=\frac{\text{Mass of }O_2}{\text{Molar mass of }O_2}=(95.10g)/(32g/mole)=2.97moles

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

2H_2+O_2\rightarrow 2H_2O

From the balanced reaction we conclude that

As, 2 moles of H_2 react with 1 mole of O_2

So, 5.27 moles of H_2 react with (5.27)/(2)=2.63 moles of O_2

That means, in the given balanced reaction, H_2 is a limiting reagent because it limits the formation of products and O_2 is an excess reagent.

The excess reagent remains (O_2)  = 2.97 - 2.63 = 0.34 moles

Now we have to calculate the moles of H_2O.

As, 2 moles of H_2 react with 2 moles of H_2O

So, 5.27 moles of H_2 react with (2)/(2)* 5.27=5.27 moles of H_2O

Now we have to calculate the mass of H_2O.

\text{Mass of }H_2O=\text{Moles of }H_2O* \text{Molar mass of }H_2O

\text{Mass of }H_2O=(5.27mole)* (18g/mole)=94.86g

Therefore, the amount of water will be, 94.86 grams

Answer:

94.03

Explanation:

edge 2023
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