What is the charge on an ion that has 10
electrons, 12 protons, and 11 neutrons?
a. 1+
b. 2+
C. 1-
d. 2-

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.

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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! :)

Answer:

hydrogen has the highest rate of effusion

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: 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:

D would be the best answer

Explanation:

Among the given options example of force acting between two objects is gravity by which an object attracts other objects into its center of mass.

Force is an external agent acting on a body to change it state or motion or rest or to deform it. There are different kinds of forces such as, gravitational force, frictional force, nuclear , magnetic force etc.

Gravitational force is the force by which an object attracts other objects into its center of mass. Earth attracts every objects on its surface into it. This effect is called gravity.

Force of gravitation depends on the mass of both objects and distance between them. Greater the mass, greater will be the force of gravity exerted on it. Thus, option D is correct.

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Atomic number of an atom is a number that represents how many protons are in an atom’s nucleus.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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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:

2x - 9y = 23

5x - 3y = -12x - 9y = 23

5x - 3y = -1

Explanation:

Answer:

temperature

Explanation:

increase in temperature increases the rate of reaction

Answer:

I am so sorry I do not know this

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:

NO2=Nitrogen dioxide

KCL=potassium chloride

NH3=Ammonia

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:

IT îs said that the cell separarea water into its constituent elemente hidrogen and oxigen . Turn the hidrogen will ne burned ți obtain energy nu restoring the water molecules.

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

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

Answer:

8.02

Explanation:

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

    the water is 36 grams.

hope this helped

Answer:

b, its a polymer that translates genetic information.

Answer:

I think it's 1

Explanation:

As the balloon rises the gas inside the balloon expands because the pressure surounding the balloon drops.