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does anyone like pistachio ice cream? fr fr bc like everyone says it’s weird but it’s so good yk like fr. don’t just be answering me for point yo i’ll come after you.

Let's see

[tex]\\ \sf\longmapsto Hydrochloric\:acid=HCL[/tex]

[tex]\\ \sf\longmapsto Sulphuric\:acid=H_2SO_4[/tex]

[tex]\\ \sf\longmapsto Sodium\: Chloride=NaCl[/tex]

[tex]\\ \sf\longmapsto Glucose=C_6H_12O_6[/tex]

[tex]\\ \sf\longmapsto Methane=CH_4[/tex]

.

Answer:

the molecular formulae of the following compounds are:

Hydrochloric acid: HCl

Sulphuric  acid:[tex]H_2SO_4[/tex]

sodium chloride: NaCl

glucose:[tex]C_6H_{12}O_6[/tex]

methane:[tex]CH_4[/tex]

Explanation:

Typical examples of solutions are

A solution can be defined as a mixture (homogeneous) of two or more substances typically a solute in a solvent, the solvent is usually in greater quantity and the substance or substances present in lesser amounts are the solutes.

Common examples of solutions are  sugar in water and salt in water solutions, soda water,

Furthermore, solutions can be homogenous or heterogenous

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Answer:

when an electron is acquired by a neutron atom, the energy change is called its electron affinity

When an electron is added to a neutral atom to create a negative ion, the energy of the atom changes (in kJ/mole). This is how electron affinity is defined. Alternatively put, the possibility of the neutral atom receiving an electron.

The amount of energy released when an electron binds to a neutral atom or molecule in the gaseous state to produce an anion is known as the electron affinity of an atom or molecule.

Although there is a slight distinction between the two, electron gain enthalpy is occasionally also referred to as electron affinity. The amount of energy released when an electron is added to a single gaseous atom is known as the electron gain enthalpy.

The amount of energy released when an atom receives an additional electron is known as its electron affinity. The gaseous state is when electron affinities are measured. On the periodic table, electron affinities tend to shift from negative to positive as we move from left to right.

Thus, when an electron is acquired by a neutral atom, the energy change is called as electron affinity.

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Answer:

160.3 g S

Explanation: hope that helps

Answer:

Answer temperatures gram is correct because there is more of a mass of numbers and the numbers are higher. (don't really know this subject, just guessing, hope this helped.)

The substance A has higher solubility then substance B because the higher the temperature the easier the substance will dissolve.

The word solubility is defined as the ability of a substance, the solute, to form a solution with another substance, the solvent.

It can also be defined as a property that allow sugar molecule to dissolve.

It can be defined as at a given temperature, the amount of solute that can dissolve in a given amount of solvent.

In this reaction, increasing the pressure and temperature results in increased solubility. An increase in pressure causes more gas particles to enter the liquid, lowering the partial pressure.  

For exothermic reaction the temperature increases with decrease in solubility and for endothermic reaction the temperature decreases with increase in solubility.

Thus, the substance A has higher solubility then substance B because the higher the temperature the easier the substance will dissolve.

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Answer:

C. Al and O2

Explanation:

The reactants are the elements or compounds that is becoming the result

So Al and O2

Hope this helps!

Answer:

Liquids

Explanation:

They have a certain volume but they take the shape of their container

An alternative method by which we can overcome this global issue is by harnessing Solar energy.

Discussion:

Fossil fuels cause environmental pollution. This is because they are organic compounds and on combustion, they release air pollutants such as, Carbon monoxide.

As a panacea, the use of solar panels for harnessing Solar energy in a bid to replace energy from fossil fuels will prove to be am effective method by which we can overcome the global issue of pollution caused by burning of fossil fuels.

Solar energy is a clean source of energy as there's no release of harmful air pollutants.

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Alternative method by which we can overcome this global issue is by

harnessing energy with less form of pollution. These include:

Fossil fuel burning releases greenhouse gases such as Carbon dioxide,

nitrous oxide etc which causes pollution to the atmosphere.

It is best to adopt alternative methods mentioned above to ensure pollution

is reduced to the barest minimum. This helps to prevent ozone depletion and

global warming. It also reduces risks of respiratory diseases due to the

inhalation of the gases.

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To keep burning, fires require oxygen. Carbon dioxide is used in certain fire extinguishers to put out flames. Explanation: Because magnesium is higher on the reactivity scale than carbon, it is more reactive and eliminates oxygen from carbon dioxide (to give carbon and magnesium oxide).

Answer:

We know that 1 mole equals to 6.02 x 10^23 atoms (which is Avogadro's number), so to get to atoms from moles, you would divide the atoms of gold by Avogadro's number

(1.93 x 10^24) / (6.02 x 10^23)

= 3.2 mol of gold (rounded)

It measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 3.21 moles of gold are in 1.93 x 10²⁴atoms of gold.

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity of amount of substance. Mole is directly proportional to the given number of atoms.

Given number of atoms of gold= 1.93 x 10²⁴atoms

we know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

Mole of gold =given number of atoms of gold ÷ 6.022×10²³(Avogadro number)

Substituting all the given values, we get

Mole of gold = 1.93 x 10²⁴atoms ÷ 6.022×10²³(Avogadro number)

Moles of gold=3.21 moles of gold

Therefore, 3.21 moles of gold are in 1.93 x 10²⁴atoms of gold.

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Explanation:

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[tex]\rule{2000pt}{1000000pt}[/tex]

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The boiling point of salt water is greater than that of fresh water hence the electrostatic forces between molecules in salt water is greater than that between the molecules in salt water.

Fresh water contains does not contain dissolved solutes like salt water. Salt water contains a lot of dissolved mineral salts making the salt water to be rich in ions.

Generally, the boiling points of substances can serve as a measure of the strength of electrostatic forces between molecules in either kind of water. We will easily find the that the boiling point of salt water is far higher than that of fresh water indicating greater electrostatic forces between molecules in salt water than between molecules in fresh water.

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Answer:

2: 2.02 x 1024 atoms

3: 4.5201 atoms

4: 384 g/mol

Explanation: I'm in your class

There are 5.01 × 10-⁷grams in 4.07 x 10¹⁵molecules of calcium hydroxide.

HOW TO CALCULATE MASS:

The mass of a substance can be calculated by multiplying the number of moles in the substance by its molecular mass.

However, given that the number of molecules in calcium hydroxide is 4.07 x 10¹⁵molecules, we need to calculate the number of moles in Ca(OH)2 as follows:

no. of moles of Ca(OH)2 = 4.07 x 10¹⁵ ÷ 6.02 × 10²³

no. of moles = 0.676 × 10-⁸

no. of moles = 6.76 × 10-⁹ moles.

Molar mass of Ca(OH)2 = 74.093 g/mol

Mass of Ca(OH)2 = 74.093 × 6.76 × 10-⁹ moles

Mass = 5.01 × 10-⁷grams.

Therefore, there are 5.01 × 10-⁷grams in 4.07 x 10¹⁵molecules of calcium hydroxide.

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Answer: Two possible ways to show the structure of CH4 are its electron dot diagram or structural formula. CH4 or methane's molecular formula is given as CH4. The structural formula is a graphical representation of a chemical compound.

Answer:

using electron dot diagrams or structional formula

Answer:

did u get the answer yet

Explanation:

Answer:

4.51 x 10 to the 23 power

Explanation:

1. mol = 77.56/100 = 0.7756 mol

2. mol = 2.55 × 10^24/6.02 × 10^23 = 4.236 mol mass = 4.236 × 74.5 = 315.582 g

3. mass = 0.0931 × 208.3 = 19.393 g

4. mol = 1.55 × 10^22/6.02 × 10^23 = 0.0257 mol

5. molecules = 0.664 × 6.02 × 10^23 = 3.997 × 10^23 molecules

6. mol = 86/242 = 0.355 mol

7. mol = 7.88 × 10^23/6.02 × 10^23 = 1.309 mol mass = 1.309 × 44 = 57.596 g

8. mass = 7.56 × 62 = 468.72 g

9. mol = 7.56/84 = 0.09 mol

10. mol = 8.55 × 10^21/6.02 × 10^23 = 0.014 mol mass = 0.014 × 58.5 = 0.819 g

recheck to ensure all answers are correct

Single-displacement reaction occurs when aluminum reacts with copper nitrate.

Single-displacement reaction is the type of chemical reaction that occurs when aluminum (Al) reacts with copper nitrate (Cu(NO3)2). In this type of reaction, aluminum takes the place of copper and produced aluminium nitrate.

Aluminum does not react with potassium nitrate (KNO3) although it reacts with copper nitrate because potassium nitrate (KNO3) is a stable compound which held each other very tightly so we can conclude that Single-displacement reaction occurs when aluminum reacts with copper nitrate.

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Answer:

cryogenic distillation process

Explanation:

Cryogenic distinction between carbohydrates and harmon process.

Answer:

Technetium. It is only found in the stars.

Explanation:

Sorry, but thats all I could find for tou

The are many elements which are not present in human body. But almost all the discovered elements are there in the universe. But the one which is not present in earth and air is technetium

Technetium  is the first synthesized element by man in 1937. Technetium has no stable isotopes and it is not found in earth. But it is present in stars. However, rare earth elements such as promethium , francium etc. can be prepared or observed from uranium ores.

There are many elements especially  some actinides and lanthanides which are not present in earth naturally existence on starts and other planets.

Human body is made of various elements including carbon, oxygen, nitrogen, various metals like iron, zinc etc.  Various enzymes contains different elements but the number of elements which are in the surroundings of human and not inside is larger.

Therefore, all the discovered elements are found in the universe and some them are not present in earth.  

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Answer:

A solid has definite volume and definite shape, a gas has neither definite volume nor definite shape, and as said in the question, a liquid has a definite volume but no definite shape.

What this means is that even though liquid molecules can slide past each other and move to fill up the space they are in (this means that liquids have no definite shape), they keep their volume. That is, liquids have consistent, unchanging volume.

Hopefully that's helpful! :)

Answer:

It's c

Explanation:

Because I've checked

Answer: D. 10,000 km = Exosphere; 690 km = Thermosphere; 85 km Mesosphere; 50 km = Stratosphere; 20 km = Troposphere

2. True

3. True

4. True

5. True

nope it vaporized

.........pls Mark barinlist I

Answer:

the nature of the bond is covalent.

covalent bonds are bonds between 2 NON-METAL elements. since phosphorus and oxygen are both non-metals, the bond formed between them is covalent.

hope this answers your question!