Seltzer is a solution made of: a. Carbon dioxide and water c. Carbon dioxide and oxygen b. Hydrogen and water d. Oxygen and sugar Seltzer is a solution made of: Carbon dioxide and water.

QUESTION POSTED AT 14/02/2020 - 04:08 PM

Answered by admin AT 14/02/2020 - 04:08 PM

Answer: Option A

Explanation:

Carbonated water(Seltzer) is a water containing carbon dioxide and water which provides the water a sparkling effect.

The carbon dioxide gas is injected artificially under pressure. Carbonation causes small bubble formation in water.

It is also known as soda water. It is produced by many companies for commercial purpose.

It is also produced naturally by the geological processes that takes place inside earth.

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Related questions

According to recent research, ice skaters are able to glide smoothly across the ice because A. ice is constantly subliming to form a layer of water vapor B. a thin, liquid-like layer of water covers the ice C. pressure from the skates raises the melting point of ice D. pressure from the skates lowers the melting point of ice

Answer:

B. A thin, liquid-like layer of water covers the ice

Explanation:

Hello,

Ice skaters are able to glide smoothly across the ice because a thin, liquid-like layer of water covers the ice, this is achieved due to the environmental conditions which allow the liquid water layer to coexist with the ice. Due to this fact, the liquid-like layer diminishes the friction coefficient between the ice skateboard and the ice allowing the slip to be carried out smoothly.

Best regards.

ANSWERED AT 28/02/2020 - 05:05 PM


QUESTION POSTED AT 28/02/2020 - 05:05 PM

What is the ph of a neutral solution at 25°c?

Answer:

pH = 7.00

Explanation:

In water at 25 °C,

K_{w} = [\text{H}_{3}\text{O}^{+}][\text{OH}^{-}] = 1.01 \times 10^{-14}\\

The solution is neutral, so [\text{H}_{3}\text{O}^{+}] = [\text{OH}^{-}]\\

[\text{H}_{3}\text{O}^{+}]^{2} = 1.01 \times 10^{-14}\\

[\text{H}_{3}\text{O}^{+}] = \sqrt{1.01 \times 10^{-14}} = 1.00 \times 10^{-7}

To get the pH, you take the negative logarithm of the hydronium ion concentration.

\text{pH} = -\log{( 1.00 \times 10^{-7})} = 7.00\\

ANSWERED AT 28/02/2020 - 05:03 PM


QUESTION POSTED AT 28/02/2020 - 05:03 PM

Which piece of equipment would be most useful for measuring the volume of some water?

A graduated cylinder. :)

ANSWERED AT 28/02/2020 - 05:00 PM


QUESTION POSTED AT 28/02/2020 - 05:00 PM

Acid mine drainage is formed when water flows past exposed rocks that leach out ______________________ that react with water and oxygen to form

Acid mine drainage is formed when water flows past exposed rocks that leaches out sulfates that react with water and oxygen to form. Sulfate is the answer which means that a salt or it is sulfuric acid. This polyatomic anion is part of our everyday life.

ANSWERED AT 28/02/2020 - 04:42 PM


QUESTION POSTED AT 28/02/2020 - 04:42 PM

What is the molarity of a solution of kno3 (molecular mass = 101 that contains 404 grams of kno3 in 2.00 liters of solution? a 1.00 b 2.00 c 0.500 d 4.00?

(1 mol KNO3/ 101 g KNO3)(404 g KNO3)= 4 moles
D

ANSWERED AT 28/02/2020 - 04:37 PM


QUESTION POSTED AT 28/02/2020 - 04:37 PM

If you have 5.55g of hcl dissolved into a 500 ml aqueous solution, what is the ph of the solution

Salts are composed of positive and negative ions packed closely together in a crystal lattice. The crystal is held together by the ionic forces among oppositely charged particles in the solid. When a crystal of a salt is placed in water, the polar water molecules arrange their dipoles around the ions of the crystal in such a way as to attract the ions. For example, a positive ion at a corner of the crystal will be surrounded by a group of water molecules aiming the negative end of their dipoles at the positive ion. If the forces of attraction of the water molecules for the positive ion are larger than the ionic forces holding the ion in the crystal, then the ion will leave the crystal and enter solution. See Figure 15.2
8. Carbon dioxide is somewhat soluble in water, especially if pressurized (otherwise, the soda you may be drinking while studying Chemistry would be “flat”). Carbon dioxide’s solubility in water is approximately 1.5 g/L at 25°C under a pressure of approximately 1 atm. Although the carbon dioxide molecule overall is non-polar, that is because the two individual C–O bond dipoles cancel each other due to the linearity of the molecule. However these bond dipoles are able to interact with water, making CO2 more soluble in water than non-polar molecules such as O2 or N2 that do not possess individual bond dipoles.

ANSWERED AT 28/02/2020 - 04:34 PM


QUESTION POSTED AT 28/02/2020 - 04:34 PM

If 0.5 gramd of hcl is dissolved in 500 ml of solution what is the ph

Salts are composed of positive and negative ions packed closely together in a crystal lattice. The crystal is held together by the ionic forces among oppositely charged particles in the solid. When a crystal of a salt is placed in water, the polar water molecules arrange their dipoles around the ions of the crystal in such a way as to attract the ions. For example, a positive ion at a corner of the crystal will be surrounded by a group of water molecules aiming the negative end of their dipoles at the positive ion. If the forces of attraction of the water molecules for the positive ion are larger than the ionic forces holding the ion in the crystal, then the ion will leave the crystal and enter solution. See Figure 15.2
8. Carbon dioxide is somewhat soluble in water, especially if pressurized (otherwise, the soda you may be drinking while studying Chemistry would be “flat”). Carbon dioxide’s solubility in water is approximately 1.5 g/L at 25°C under a pressure of approximately 1 atm. Although the carbon dioxide molecule overall is non-polar, that is because the two individual C–O bond dipoles cancel each other due to the linearity of the molecule. However these bond dipoles are able to interact with water, making CO2 more soluble in water than non-polar molecules such as O2 or N2 that do not possess individual bond dipoles.

ANSWERED AT 28/02/2020 - 04:34 PM


QUESTION POSTED AT 28/02/2020 - 04:34 PM

At what temperature is the average speed of oxygen molecules equal to 1.12×104m/s?

 we will use the root mean squared speed of oxygen formula
v= (3RT) / M
T= vM/3R
where
v =1.12x104 m/s; velocity
R=  (8.31447 kg m2 s-2 K-1 mol-1) gas constant

M = 0.0319988 kg/mol; molar mass of oxygen

substituting the given values, we will get 

T(K)= 14.37K or -258.78 C

Oxygen molecules speed of 1.12x104 m/s is at temperature -258.78C.



ANSWERED AT 28/02/2020 - 04:33 PM


QUESTION POSTED AT 28/02/2020 - 04:33 PM

A sample of hydrogen has an initial temperature of 50.° c. when the temperature is lowered to -5.0° c, the volume of hydrogen becomes 212 cm3 . what was the initial volume of the hydrogen in dm3?

Using the 
V1/T1=V2/T2
where
T1=50C= 323.15K
T2= -5C=268.15 K
V2= 212m^3
substitute the given values, we will get the initial volume
V1=V2T1/T2
V1= 255.48m^3

The initial volume is 255.48m^3




ANSWERED AT 28/02/2020 - 04:31 PM


QUESTION POSTED AT 28/02/2020 - 04:31 PM

What is the chemical symbol for nitrogen and oxygen?

N2 and O2

hope it helps

ANSWERED AT 28/02/2020 - 04:26 PM


QUESTION POSTED AT 28/02/2020 - 04:26 PM

What happens to the temperature of water between the time ice melts and water boils (this is partially quoted from a question)? Also, what change occurs in temperature after water starts boiling (this is also from a booklet)? Thank you and please explain your thoughts. This is based on the phase changes of water, and you should refer to a graph on the phase changes of water.

Your first statement is very ambiguous so I will give it the best shot as to what you are saying.
The temperature, between the point of ice melting and water boiling, is increasing as water is in its liquid state.
Now during a phase change, or while the water is boiling, the temperature remains constant because the energy being added is being consumed to complete the phase change.
But if you're looking at the phase change graph, the points of positive slopes, are moments when energy is increasing as the water, in whatever state, is increasing. But when the slope of the graph is 0, the water is changing phases and the temperature remains constant! I hope I explained that so you could understand it, and I hope this helps you!

ANSWERED AT 28/02/2020 - 03:47 PM


QUESTION POSTED AT 28/02/2020 - 03:47 PM

What is the empirical formula for a compound that is a 83.7% carbon and 16.3% hydrogen

The empirical formula for a compound that is a 83.7% carbon and 16.3% hydrogen is CH2

ANSWERED AT 28/02/2020 - 03:23 PM


QUESTION POSTED AT 28/02/2020 - 03:23 PM

Which of the following is not one of the three ingredients needed to form a cloud? dust or solid matter of some sort water molecules wind temperature and pressure changes

I think is wind(not needed in the formation of cloud).

ANSWERED AT 28/02/2020 - 02:57 PM


QUESTION POSTED AT 28/02/2020 - 02:57 PM

What is process of bringing water to boiling affects

Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere. There are two main types of boiling; nucleate boiling where small bubbles of vapour form at discrete points, and critical heat flux boiling where the boiling surface is heated above a certain critical temperature and a film of vapor forms on the surface. Transition boiling is an intermediate, unstable form of boiling with elements of both types. The boiling point of water is 100 °C or 212 °F, but is lower with the decreased atmospheric pressure found at higher altitudes.

Boiling water is used as a method of making it potable by killing microbes that may be present. The sensitivity of different micro-organisms to heat varies, but if water is held at 70 °C (158 °F) for ten minutes, many organisms are killed, but some are more resistant to heat and require one minute at the boiling point of water. Clostridium spores can survive this treatment, but as the infection caused by this microbe is not water-borne, this is not a problem.

Boiling is also used in cooking. Foods suitable for boiling include vegetables, starchy foods such as rice, noodles and potatoes, eggs, meats, sauces, stocks and soups. As a cooking method it is simple and suitable for large scale cookery. Tough meats or poultry can be given a long, slow cooking and a nutritious stock is produced. Disadvantages include loss of water-soluble vitamins and minerals. Commercially prepared foodstuffs are sometimes packed in polythene sachets and sold as "boil-in-the-bag" products.


ANSWERED AT 28/02/2020 - 02:15 PM


QUESTION POSTED AT 28/02/2020 - 02:15 PM

Which molecule is polar, based on structure? sulfur dioxide carbon disulphide ethylene carbon tetrachloride

Answer:  Sulphur Dioxide

Explanation:  Polarity of the molecule is basically based on -

a) Electro negativity of the individual atoms

b) Structure of the molecule as change will dipole moment or asymmetric structure will lead to the polar molecule.

Sulfur Dioxide has bent structure with 2 lone pairs and 2 bond pairs. . Thus the molecule is polar

Carbon disulfide has linear structure. Thus there will be no change in dipole moment in the structure thus in non polar.

Ethylene molecule is the most linear molecule thus cannot be polar.

Carbon Tetra chloride is in shape of Tetrahedron thus it is also non polar as no net change in dipole moment can be seen.

ANSWERED AT 28/02/2020 - 02:07 PM


QUESTION POSTED AT 28/02/2020 - 02:07 PM

When 10g of calcium carbonate is heated,4.4g of carbon dioxide escape out. The amount of residue left is:

The dissociation of calcium carbonate, CaCO3, to simpler compounds can be expressed as,
                        CaCO3 --> CaO + CO2
The precipitate is CaO and its amount is calculated through the difference which will give us the answer of 5.6 g. 

ANSWERED AT 28/02/2020 - 01:38 PM


QUESTION POSTED AT 28/02/2020 - 01:38 PM

Causes rocks to change composite when reacting with oxygen

The steel in nail contains iron. Oxygen and water react with the iron to form rust. (oxidation i believe. i may be wrong) 
Minerals in rocks undergo chemical changes when they react with water and air. is the breakdown of rocks by chemical reactions that change the rocks' makeup, or composition.

ANSWERED AT 28/02/2020 - 01:29 PM


QUESTION POSTED AT 28/02/2020 - 01:29 PM

Earth has several ideal features which enable it to support life. MOST important is the A) gravitational force on Earth. B) existence of tectonic plates. C) relationship between Earth and its moon. D) existence and amount of water on Earth's surface.

Earth Has Several Ideal Features which enable it to support Life. (MOST) Important is the

Answer:D.) Existence and amount of water on Earth's Surface.

Explaining:All of the Answer's choices help Earth, in some way, to Support life.But Most important is the Existence and amount of the water on earth surface             
                                          Good Luck...... *-*



ANSWERED AT 28/02/2020 - 01:14 PM


QUESTION POSTED AT 28/02/2020 - 01:14 PM

How many grams of oxygen gas must react to give 2.10g of ZnO?

The chemical reaction is written as:

2Zn + O2 = 2ZnO

We are given the amount of the product to be produced from the reaction. We use this value and the relation of the substances in the reaction to calculate what is asked. We do as follows:

2.10 g ZnO ( 1 mol / 81.408 g ) ( 1  mol O2 / 2 mol ZnO ) ( 32 g / 1 mol ) = 0.414 g O2 is needed

ANSWERED AT 28/02/2020 - 12:46 PM


QUESTION POSTED AT 28/02/2020 - 12:46 PM

The molar mass of water (H2O) is 18.0 g/mol. A sample of water has a mass of 18.0 g. How many moles of water are contained in this sample? a) 1.00 b) 18.0 c) 36.0 d) 324

Number of moles = Given Mass / Molar mass

Here, Given mass = 18 g
Molar mass = 18 g/mol

Substitute their values, 
n = 18/18
n = 1 mol

In short, Your Answer would be: Option A

Hope this helps!

ANSWERED AT 28/02/2020 - 12:46 PM


QUESTION POSTED AT 28/02/2020 - 12:46 PM