Aqueous solutions of sodium carbonate and magnesium chlorate are mixed, what is the precipitate, chemical equation, complete ionic equation, and net ionic equation

Answer:

Loss of energy to a colder material. Ice forms at 32°F /0° C.

Explanation:

As water cools, the natural movement between the molecules slows until it changes to a solid state (just as it boils to gas if they become too active). This movement doesn't completely stop until the material hits "absolute zero" at -460°F /-273° C. (0° Kelvin).

That's about the temperature "in the shade" in outer space.

A more interesting question would be, "why does water expand when it freezes?" The H - two - O molecule forms a triangle (with the O in the middle).

As it cools, the angle formed by the two H's gets larger. At around 36°F /2° C , the shrinking space between molecules gets overwhelmed by the expanding size of each molecule.

So, for those last few degrees before freezing, the overall volume gets bigger instead of continuing to decrease.

That's what causes potholes in roads (water settles into cracks, then makes the crack larger as it freezes). It's what damages the eaves trough around your roof, breaks leaves down into topsoil and splits boulders in half.

Answer:

D because electron is negatively charge around the nucleus

electrons are found outside the nucleus

An atoms is composed of electrons, protons and neutrons. Protons and neutrons are attached within the nucleus whereas electrons are in the cloud around the nucleus. Thus, option D is correct.

Atoms are the basic units of every substance. Atoms are composed of subatomic particles electrons, neutrons and protons.  Protons and neutrons are located inside the nucleus where as electrons are revolving around the nucleus.

The core of an atom is called nucleus. The protons are positively charged and the neutrons are neutral. Electrons are negatively charged particles and they are revolving around the nucleus through circular paths of fixed energy called orbits.

The region where we can find an electron inside an atom is called an orbital. Electrons experience an attractive pull  from the positively charged nucleus and thus electrons are existing in a cloud of electrostatic force around nucleus.  

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Answer:

Water molecules' adhesion aids plants in moisture absorption at their roots. Water's initial boiling point is attributed to cohesion, which helps animals regulate their body temperature.

Explanation:

Answer:

exothermic

Explanation:

exothermic reactions give off heat.....or the temp of the substances increases

The center of mass for a pair of items is situated closer to the larger of the two objects along the line separating them.

Mass is a unit used to describe how much matter is present in an object. Usually, the unit of mass is either kilogram (kg) or gram (g) (kg). Mass is an indicator of the amount of matter there is, regardless of where it is in the cosmos or how much force of gravity is being applied to it. This is one of the basic quantities in physics and the most fundamental property of matter. The quantity of matter in a body is referred to as its mass.

A thing's mass is a measurement of how much matter it contains. That thing will have the same mass no matter where it is in the enormous universe. Contrarily, weight is a measurement of how much gravitational force is being applied to an object.

Scientists frequently use balances to quantify mass. With an electronic balance or a beam balance, one may directly determine the mass of solids. A liquid's mass can be calculated by measuring its volume and using the density table to determine the liquid's density. The kilogram is the SI unit of mass (Kg).

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Answer:

Chemical changes release a form of energy called electromagnetic energy, which travels through space as waves.

From the calculations, the amount of product formed is 3 moles of AlCl3

A chemical reaction is said to take place when two or more substances are combined to yield products.

The equation of the reaction is;

Al(NO3)3 + 3NaCl ------> 3NaNO3 + AlCl3

Given that 1 mole of Al(NO3)3 reacts with 3 moles of NaCl

x moles of Al(NO3)3 reacts with 9 mols of NaCl

x = 3 moles

This implies that NaCl is the limiting reactant.

If 3 moles of NaCl gives 1 moles of AlCl3

9 moles of NaCl gives 9 moles * 1 mole / 3 moles

= 3 moles of AlCl3

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I am so sorry i cant help but good luck

Answer:

0.20 times 10(-5)

Explanation:

There are 6.022×1023 O2 molecules in a mole of O2. Since you have 2 oxygen atoms in one O2 molecule, there are 2×6.022×1023 O atoms in a mole of O2.

Answer:

There are 6.022×10^23 O2 molecules in a mole of O2. Since you have 2 oxygen atoms in one O2 molecule, there are 2×6.022×1023 O atoms in a mole of O2.

The equation for the hydrolysis of glyceryl triethanoate is C3H5(OH)3 + 3CH3COOH = C3H3(OCOCH3)3 + HOCH2CH(OH)CH2OH

Hydrolysis is a chemical reaction which water molecule break down one or more chemical bonds. This is use for substitution, elimination, and solubility.

Hydrolysis depend on the pH, solubility and chemical constituent of the substance.

Therefore, The equation for the hydrolysis of glyceryl triethanoate is C3H5(OH)3 + 3CH3COOH = C3H3(OCOCH3)3 + HOCH2CH(OH)CH2OH

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Answer:

January = 45

May = 80

Explanation:

45 + 8 = 53

53 + 8 = 61

61 + 8 = 69 Round 70

70 + 8 = 78 Round 80

[RevyBreeze]

 Answer:     i might 45 and 110 because i think that it is adding or something

Explanation:

The empirical formula of the solvent is CH4.

Relative number of atoms

Of H= 25/1 = 25

Of C= 75/12 = 6.25

What is a solvent?

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Answer:

keep the soil wet

Explanation: if the song wet it will not cause as much dust storms

Sodium hypochlorite serves as a bleaching agent. Dyes, humectants, cavity fluid, and phenol are not typically used as bleaching agents.

Bleaching agents are chemicals that are used to remove colors or stains from materials, typically textiles or hard surfaces.

They are commonly used in the washing and cleaning industries, as well as in some industrial processes. Bleach is a compound that removes or lightens colors, brightens whites, and eliminates bacteria and viruses from fabrics, food, drinking water, and hard surfaces such as counters, sinks, and floors.

It is used as a disinfectant to kill bacteria and viruses in both the food and industrial sectors. It is also used to purify drinking water, keep swimming pools clean, and remove discolorations from fabrics and hard surfaces in the home. Sodium hypochlorite is one of the most common bleaching agents used.

Therefore sodium hypochlorite is the correct option.

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Answer:

5m/s

Explanation:

2s ÷ 2 = s

10m ÷ 2 = 5m

5 meters per second or 5m/s

Answer:

D Sunlight

Explanation:

Hoped that helped :)

Answer:

15.999 amu

Explanation:

From the question given above, the following data were:

Isotope A:

Mass of A 15.995 amu

Abundance (A%) = 99.759%

Isotope B:

Mass of B = 16.995 amu

Abundance (B%) = 0.037%

Isotope C:

Mass of C = 17.999 amu

Abundance (C%) = 0.204%

Atomic mass of Oxygen =.?

The atomic mass of oxygen can be calculated by using the following formula:

Atomic mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100]

Atomic mass = [(15.995 × 99.759)/100] + [(16.995 × 0.037)/100] + [(17.999 × 0.204)/100]

Atomic mass = 15.956 + 0.006 + 0.037

Atomic mass = 15.999 amu

Therefore, the atomic mass of oxygen is 15.999 amu

Answer: Whats ur Question?

Explanation:

Answer:

Explanation:

0.76 V

The voltmeter shows that the standard cell potential of a galvanic cell consisting of a SHE and a Zn/Zn2+ couple is E°cell = 0.76 V.

Pyrrolidine-2-one is more basic than pyrrole because the presence of an electron-withdrawing carbonyl group stabilizes the conjugate acid, making it easier to donate a proton.

Pyridine is more basic than pyrrolidine-2-one and pyrrole due to the presence of a nitrogen atom in a sp2 hybridized state, which allows for greater availability of the lone pair of electrons for protonation.

Pyrrolidine-2-one is more basic than pyrrole due to the presence of a carbonyl group (C=O). The carbonyl group is an electron-withdrawing group that stabilizes the conjugate acid formed after protonation. This stabilization makes it easier for pyrrolidine-2-one to donate a proton, increasing its basicity compared to pyrrole.

Pyridine, on the other hand, is more basic than pyrrolidine-2-one and pyrrole. The nitrogen atom in pyridine is in a sp2 hybridized state, which means it has a p orbital available for overlap with the p orbitals of the aromatic ring. This hybridization allows for greater delocalization of the lone pair of electrons on nitrogen into the aromatic ring, making the lone pair more available for protonation and increasing the basicity of pyridine. The sp2 hybridization also provides a higher electron density on the nitrogen atom, further enhancing its basicity compared to pyrrolidine-2-one and pyrrole.

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The color of the solution changed when the person blew into the tube because blowing into the tube introduced carbon dioxide, which reacted with water to form carbonic acid.The indicator used in this experiment is Bromothymol blue.

Bromothymol blue is a pH indicator. It is a blue solution that turns yellow when the pH drops to 6 or less. When the pH rises to 7.6 or above, it turns green. Bromothymol blue has a pKa of 6.3. The buffer system used in this lab is the bicarbonate buffer system. The bicarbonate buffer system maintains the pH of the blood in humans. The system works by shifting the equilibrium between carbon dioxide, bicarbonate ions, and carbonic acid.

When carbon dioxide is produced in the body, it diffuses into the blood and reacts with water to form carbonic acid. The carbonic acid then dissociates to form bicarbonate ions and hydrogen ions. The bicarbonate ions act as a buffer by reacting with any excess hydrogen ions to form carbonic acid, which can then dissociate to form more bicarbonate ions.

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A compound accepts electrons from another substance to form a covalent bond. The compound acts as a Lewis base.

A compound accepts electrons from another substance to form a covalent bond. Which term best describes this compound’s behavior?

A compound accepts electrons from another substance to form a covalent bond. The compound acts as a Lewis base.

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Answer:

Benifits of scientific modeling

Explanation:

When students are engaged in scientific modeling, they are able to notice patterns and develop and revise representations that become useful models to predict and explain--making their own scientific knowledge stronger, helping them to think critically, and helping them know more about the nature of science.

Knowledge of the ignition temperature, which is the minimum temperature at which a substance can ignite, is crucial for safe handling and preparation of food over an open flame on a hot stove.

Understanding the ignition temperature helps students gauge the potential risk of fire and take appropriate precautions. They can apply this knowledge to make informed decisions about the intensity of the flame and the proximity of flammable materials to the heat source. To prevent accidental fires, students can adjust the flame to a safe level that provides adequate heat for cooking without exceeding the ignition temperature of the food or any nearby combustible materials. They can also ensure proper ventilation in the cooking area to prevent the buildup of flammable gases or vapors. Additionally, knowledge of the ignition temperature can influence the choice of cooking oils and fats used. Different oils have varying ignition temperatures, and using oils with higher smoke points can reduce the risk of overheating and igniting during cooking. Students can also adopt safe cooking practices, such as using appropriate cookware with heat-resistant handles, keeping flammable materials away from the stove, and having a fire extinguisher or other fire-safety equipment readily available. By taking the ignition temperature into consideration, students can handle and prepare food over an open flame on a hot stove with greater caution and awareness, minimizing the risk of fires and ensuring a safer cooking environment.

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Answer:

Al(OH)3

Explanation:

-Aluminum hydroxide is an antacid. Aluminum hydroxide is used to treat heartburn, upset stomach, sour stomach, or acid indigestion. Aluminum hydroxide is also used to reduce phosphate levels in people with certain kidney conditions. Aluminum hydroxide may also be used for purposes not listed in this medication guide.

-Aluminium hydroxide is an inorganic basic compound used as an intermediary in organic synthesis and as an additive in pharmaceutical and fine chemical industries. Formula and structure: The aluminum hydroxide chemical formula is Al(OH)3 and its molar mass is 78.00 g mol-1.

So, Na (Z=11) has the largest atomic radius among the given elements in the third period.

The element with the largest atomic radius among the given compounds is Na (Z=11) which is a group 1 element and has only one valence electron, leading to a larger atomic radius compared to the other elements in the third period.

1. List the elements given: Al (Z=13), Na (Z=11), Si (Z=14), and Cl (Z=17).
2. Understand that atomic radius generally decreases across a period from left to right due to an increase in effective nuclear charge.
3. Since Na is the farthest left element among the options provided, it has the largest atomic radius.

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