If the hydrogen ion concentration, [H+], in a solution is 2.65 x 10-2 M, what is [OH-]?

Answer:

NO2=Nitrogen dioxide

KCL=potassium chloride

NH3=Ammonia

Answer:

hydrogen has the highest rate of effusion

Answer:

no volume does not

Explanation:

Answer: D. 434 K

Explanation:

To calculate the final temperature of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

[tex]\frac{V_1}{T_1}=\frac{V_2}{T_2}[/tex]

where,

[tex]V_1\text{ and }T_1[/tex] are the initial volume and temperature of the gas.

[tex]V_2\text{ and }T_2[/tex] are the final volume and temperature of the gas.

We are given:

[tex]V_1=606ml\\T_1=35^oC=(35+273)K=308K\\V_2=854ml\\T_2=?[/tex]

Putting values in above equation, we get:

[tex]\frac{606}{308}=\frac{854}{T_2}\\\\T_2=434K[/tex]

Thus  temperature necessary for the  gas to have a volume of 854 ml is 434 K

Answer:

b, its a polymer that translates genetic information.

Answer:

It could pollute other planets. Nuclear waste might be attracted by the gravitational pull of the sun and disintegrate there instead. The waste storage spacecraft could crash into a planet, moon, or another astronomical body. It could be dangerous for other life forms out there.

Explanation:

Answer:

8.02

Explanation:

Answer:

Aerobic Energy System

Explanation:

Answer:

Digestive system. It contains chemical energy. The digestive system breaks down food. Food contains chemical energy. To break down the food, the digestive system contains enzymes. Enzymes have kinetic energy to move and break down the food. They are biological catalysts. They transfer to the thermal energy store since in order to break down food at the fastest rate, they need to be at an optimum temperature.

I'm not sure if it's correct, but I'll provide some energy stores to give you inspiration:

Kinetic energy

Chemical energy

Nuclear energy

Gravitational potential energy

Elastic potential energy

Thermal energy

Answer:

In chemistry, a mixture is a material made up of two or more different substances which are not chemically combined. ... A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids.

Answer:

This is very easy Cuz We have 2Na2O We have O2 so thats molecule of Oxygen and its same on product We need to balance Na on start We have 1 on product We have 2 so Just put 2 at start....

Explanation:

Sorry for bad english not my first language :(

2Na+O2-->2Na20

Answer:

Explained below.

Explanation:

Formula when magnesium reacts with hydrochloric acid is given by;

Mg(s) + 2HCl(aq) = MgCl2(aq) + H2(g)

So, from the equation, we can see that the gas formed is hydrogen.

This hydrogen gas is collected by a method known as water displacement.

This gas can be tested for by holding a burning splint near to the top of the test container. The resulting effect should be a high pitched pop sound because the hydrogen gas will react with the oxygen gas in the air to result in a small explosion.

Answer:

oh man i haven't taken chemistry but i've seen questions similar to this and i think it's B????? I'm not positive

Explanation:

Answer:

A has the highest concentration

Explanation:

I'll simply explain it this way;

get a color pour the whole color in a solution in container A then add a little drop in the another container(B).

you'll find out that the first container has a thicker color than container B the same thing goes for this, Beaker A has a thick looking color unlike the rest.

Answer:

1250joules

Explanation:

The kinetic energy is energy in motion and it's formula is

KE =1/2MV^2

M represent mass which is 100Kg.

V represent velocity which is 5m/s

Therefore, KE = 1/2×100×5× 5

= 50 × 25

KE= 1250joules

Answer:

The answer is C

Explanation:

I did look it up, the other kid just spams random bs for points, hope you didn't get it wrong because of him! :)

The daughter isotope which is present in the given radioactive decay is ²¹⁸₈₆R.

A daughter isotope is the isotope that remains following the radioactive decay of an original isotope.

In the question parent nuclei is given that ²²²₈₈R, and given chemical equation is:

²²²₈₈R → ²¹⁸₈₆R + ⁴₂He

In the above equation ²¹⁸₈₆R is the daughter nuclei and ⁴₂He is the emitted particle or rays.

Hence ²¹⁸₈₆R is the daughter isotope.

To know more about daughter isotope, visit the below link:
https://brainly.com/question/2192454

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Answer:

222 88Ra

Explanation:

Answer:

temperature

Explanation:

increase in temperature increases the rate of reaction

D. She is not right, because there will be more successful collisions

between reactants in the concentrated solutions.

Enid claims that two concentrated solutions will have a lower reaction rate than two dilute solutions. The statement tells that whether Enid is right given as ". She is not right, because there will be more successful collisions between reactants in the concentrated solutions.

So, option D is correct one.

A solution which has relatively large amount of dissolved solute.

Since, rate of the reaction depends upon collision between reactants molecules. Due to presence of large amount of dissolved solute in concentrated solution, more collision is takes place between solute molecules. So, rate of reaction of concentrated solution is more as compare to dilute solution.

To learn more about concentrated and salute here.

https://brainly.com/question/24316606

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Answer:

1. By praying in the day or meditating

Being successful in your life will start with deciding to change in order to Learn. To make this happen, you need a good attitude and discipline. If you are already in the place where you are writing, it cannot be said because you probably like other things in your life very much. Make it a habit to start your day by praying or meditating. This will help you feel that you are more than who you think you are, thus showing that you can make it physical than you think you can and be in a different place in life than the one you are facing right now. Connect with yourself, be confident, and understand that you see better.

2.Be fully present when you are with your family

Family life is the area most associated with work-life balance. Having a good family life is like being at the top of your work-life balance. After all, your family will always be with you in your good and bad days. Friendships may end, but family relationships last. Start making changes in your life by making it in your family life. Make it a habit to spend quality time with them. Be more involved in their life, physically and spiritually.

3.Thank you to people you already know

Good connections are essential in business. It causes you to do more and better work. Good and strong connections in your personal life, on the other hand, allow you to develop yourself in different areas of life. This is another way to achieve balance. Developing your environment and making strong connections helps you learn from other people, broaden your perspective, and even broaden your vision of life. Communicate with the least person you know every day. It's always easier for you to start expanding your network with people you know. Tell him what you are busy with, ask him what he is busy with and if he needs help. Asking for help for yourself will also build trust. And it's okay to ask him if he knows other people who can help you

4.Do something creative

Although the left brain right brain dominance theory has been debunked, the world still cares more about activities attributed to the left brain, such as logic and measurement. Most businesses prefer analytical to creative thinking. And many people decide that creative thinking is impractical and discard it. Whatever your job is, you shouldn't give up your creative qualities. As an employee or employer, you have to be creative for more customers, more work and more marketing. Notice how your blood is pumping and how your adrenaline rises. Only right brain activities and creativity affect your lives. More importantly, the way to improve your vision and create new opportunities for your business and social life is through creativity. If your artist side is dominant, you should devote more time to activities such as painting, music, animation, and literature; maybe even consider starting a blog for yourself. This will help you to balance and add color to your life after a long and monotonous 'left-brain' weighted day.

5.30-minute walks

The first five items consisted of things you need to focus on every day for your emotional, relational, and personal success. But in order to develop and enjoy this success, you must also improve your Physical health. Make it a habit to move. Walk for half an hour a day, go to the gym, or even stretch your body every hour you sit down. Physical activities have many alternatives and benefits. Choose the most convenient and tasteful for you.

Explanation:İYİ GÜNLER

    the water is 36 grams.

hope this helped

Answer:

The answer is Ionization energy.

Explanation:

Ionization Energy. The ionization energy tends to increase as one moves from left to right across a given period or up a group in the periodic table.

Answer: linear

tetrahedral

bent

trigonal bipyramidal

Explanation:

When there are two atoms around the central atom and no lone pair of electrons, the number of electron pairs will be 2  that means the hybridization will be sp and the electronic geometry of the molecule will be linear.

When there are four atoms around the central atom and no lone pair of electrons, the number of electron pairs will be 4  that means the hybridization will be [tex]sp^3[/tex] and the electronic geometry of the molecule will be tetrahedral.

When there are two atoms around the central atom and two lone pair of electrons, the number of electron pairs will be 4  that means the hybridization will be [tex]sp^3[/tex] and the electronic geometry of the molecule will be bent.

When there are five atoms around the central atom and no lone pair of electrons, the number of electron pairs will be 5 that means the hybridization will be [tex]sp^3d[/tex] and the electronic geometry of the molecule will be trigonal bipyramidal.

Answer:

5.9x10²² atoms of Cu are in one naira coin

Explanation:

To solve this question we need to find the mass of Copper. Then, using its molar mass (Cu = 63.546g/mol) we must find the moles of Cu and its atoms using Avogadro's number:

Mass Cu:

7.3g * 86% = 6.278g is the mass of Cu.

Moles Cu:

6.278g * (1mol / 63.546g) = 0.099moles Cu

Atoms Cu:

0.099moles Cu * (6.022x10²³atoms / 1mol) =

Answer:

1 mole of car

Explanation:

One mole of a substance is said to be equal to 6.02 × 10^23 atoms, which is Avagadro's number or constant. In other words, 1mole of every substance = 6.02 × 10^23 atoms. Hence, the number of moles in a substance can be calculated by dividing the number of atoms contained in that substance (nA) by 6.02 × 10^23.

According to this question, If I have 6.02 x 10^23 cars, this means that I have:

6.02 x 10^23 cars ÷ 6.02 x 10^23

= 6.02 ÷ 6.02 × 10^(23-23)

= 1 × 1^0

= 1mole of car