PLZ HELP I WILL GIVE BRAINLISTS TO RIGHT ANSWER

2KCIO3 → 2KCI+ 302
How many moles of oxygen are produced by the decomposition of 5.0 moles of potassium chlorate?

A )7.5 mol O2
B )5.0 mol O2
C )2.5 mol O2
D )9.0 mol O2

Answer:

The molar mass is 97.99 g

Answer:

can you include the choices?

Explanation:

Answer:

Answer b: The law of conservation of matter says that in chemical reactions, the total mass of the products must equal the total mass of the reactants.

Explanation:

hope this helps

In between conductors, which are typically metals, and not-conductors or insulators, such as ceramics, exist materials known as semiconductors. Semiconductors can be pure elements like germanium or silicon or compounds like gallium arsenide.

In the given pictures, 'As' is a N-type semiconductor whereas 'Ga' is a P-type semiconductor.

When pentavalent impurities (P, As, Sb, and Bi) are added to a pure semiconductor (germanium or silicon), four of the five valence electrons form a bond with the four electrons of the pure semiconductor.

The dopant's fifth electron is liberated and used for conduction in the lattice are called N-type semiconductors.

When a trivalent impurity (B, Al, In, or Ga) is added into a pure semiconductor, three of the semiconductor's four valence electrons form a bond with the impurity's three valence electrons.

In the impurity, this results in an electron (hole) being missing called P -type semiconductors.

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Answer:

56 mph!

Explanation:

1 kph = .621371 mph

90 * .621371 = 55.92339

Answer:

56 mph

Explanation:

Explanation:

Step 1: Write out the chemical formula of the compound.

Magnesium Chloride = MgCl^2

Step 2: Convert moles into number of compounds using Avogadro's number

0.5 moles MgCl^2 ⋅(6.022⋅10^23 - 1 mole MgCl^2)= 3.011⋅ 10^23

Step 3: Determine how many Chloride ions there will be in 1 compound

There will be 2 Cl− ions in each compound (Cl^2 part)

Step 4: Multiply the number from Step 2 by the number in Step 3

3.011 ⋅ 10^23 ⋅ 2= 6.022 ⋅ 10^23

We do this because the ratio is 2 Cl− ions for every 1 compound.

In the case of finding how many ions in general (both sodium and chloride), we would multiply by 3 because there are 3 ions per 1 compound.

I hope this helped!

Answer:

it had wings that flapped similat to birds wings

Answer:

25.9g

Explanation:

Molecular mass of Fe₂O₃ = (56 * 2) + (16 * 3)

                                          = 112 + 48 = 160

Let's follow the unitary method now

In 160g Fe₂O₃ , there is 112 g Fe

In 1 g  Fe₂O₃ , there is 112 / 160 g Fe

In 37  Fe₂O₃ , we need 112 * 37 / 160

= 25.9 g Fe

(a) shows both acidic and basic properties

(b) creates a neutral pH in solution

(c) is an ionic compound formed from an acid-base reaction

(d) can react with acid but not with a base

Answer:

Explanation:

Propionic acid  has chemical formula of  C₃H₆O₂ , and smells somewhat unpleasant (like body odour).

Answer:

30.8 grams of nitric acid are produced

Explanation:

Let's state the reaction:

3 NO₂ + H₂O → 2 HNO₃ + NO

If water is the excess reagent, then the limiting is the gas.

We convert the mass to moles:

45 g . 1 mol/ 46 g = 0.978 moles

Ratio is 3:2. 3 moles of gas can produce 2 moles of acid

Then, 0.978 moles may produce (0.978 . 2) /3 = 0.652 moles of acid

This is the 100% yield, but in this case, the percent yield is 75%

0.652 moles . 0.75 = 0.489 moles

Let's convert the moles to mass → 0.489 mol . 63g / 1mol = 30.8 g

The oxidative segment PPP is the pathway(s) to be active in order to reduce the high level of oxidative stress.

This segment is made up of two irreversible steps: Step 1: Glucose-6-phosphate is oxidized to shape lactone. NADPH is produced as a byproduct of this response as NADP +begin superscript, plus, cease superscript is decreased as glucose-6-phosphate is oxidized.

More NADPH --> oxidative phasenon-oxidative segment--> fructose 6- bisphosphate and three glyceraldehydegluconeogensis: convert it to fructose 6- bisphosphate and three glyceraldehyde to make even extra glucose

Since the mobileular wishes excessive ranges of NADPH. The pathways that might offer the maximum NADPH will be the oxidative segment of PPP, the non-oxidative segment of PPP generating fructose 6-phosphate and glyceraldehyde 3-phosphate, and gluconeogenesis the usage of fructose 6-phosphate and glyceraldehyde 3-phosphate to provide extra glucose 6-phosphate that may be used to generate extra NADPH.

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INFORMATION:

We must determine what is the effect of raising the temperature in an endothermic reaction

STEP BY STEP EXPLANATION:

To determine it, we need to know that:

If the system becomes hotter as the written reaction occurs from left-to-right (the forward reaction), the reaction is said to be exothermic. Conversely, if the system becomes colder as the forward reaction occurs, the reaction is said to be endothermic.

Now, We have the endothermic reaction at equilibrium:

Where the Δ symbol represents energy in.

In this case, the reaction is endothermic and, an increase in temperature will cause the forward reaction to occur, increasing the amounts of the products and decreasing the amounts of reactants.

Answer

A) N and P

Explanation

Nitrogen and phosphorous are part of the same 'family' on the periodic table, group 15, also called the nitrogen group. Since phosphorus is just below nitrogen, we can expect nitrogen and phosphorus to have some similar properties. They are non-metals and have similar properties when making compounds.

The asbestos exposure during the years 1982 and 1983 was 2.5 fibers per cubic centimeter and 0.8 fibers per cubic centimeter respectively. So asbestos exposure decreased by 1.7 fibers per cubic centimeter during the year 1983.

Breathlessness Persistent, dry cough Chest pain or tightness Lack of a dry, crackling sound in the lungs when you breathe in Wider and rounder fingers and toes are some of the symptoms of asbestos exposure.

The largest group of people exposed to asbestos is those working in the construction industry. Historically, asbestos was also used by pipe fitters and shipyard workers. In addition, asbestos was used by military personnel, auto mechanics, and many other occupations.

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Answer:

When a lamp is turned on, it gives off light energy and heat energy.

My day was fantastic.

Explanation:

The lamp gives off heat energy because anything that gives off light energy gives off heat energy.

the most significant intermolecular force in each of the compounds or compound pairs is as follows

i. LiCl (in water) - D. Ion-dipole forces

ii. Cl3PO - A. London dispersion forces

iii. SF6 - A. London dispersion forces

​iv. CH(CH3)3 - A. London dispersion forces

v. H2NNH2 - C. Hydrogen bond.

i. LiCl (in water) - D. Ion-dipole forces are the most important intermolecular force in LiCl (in water). When an ionic substance, such as LiCl, is dissolved in a polar solvent, such as water, this happens. The negative dipoles of the water molecules surround the positive Li+ ions once the ionic connections between the LiCl molecules break.

ii. Cl3PO - A. London dispersion forces are the main intermolecular force in Cl3PO. Due to the transient dipoles that emerge when deformed electron clouds interact with non-polar molecules, this is a weak attraction force between them.

iii. SF6 - A. London dispersion forces are the main intermolecular force in SF6. Due to the transient dipoles that emerge when deformed electron clouds interact with non-polar molecules, this is a weak attraction force between them.

iv. CH(CH3)3 -A. London dispersion forces are the main intermolecular force in CH(CH3)3. Due to the transient dipoles that emerge when deformed electron clouds interact with non-polar molecules, this is a weak attraction force between them.

v. H2NNH2 - C. The hydrogen bond acts as the strongest intermolecular force in H2NNH2. This is a potent attractive attraction between molecules that have hydrogen atoms bound to atoms that have a strong electronegative charge, such oxygen and nitrogen.

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Appropriate form of Question be like

Indicate the most significant intermolecular force in each of the compounds or compound pairs below. For each molecule select one of the following choices:

A. London dispersion forces

B. Dipole-dipole forces

C. Hydrogen bond

D. Ion-dipole forces

For your answer choice, insert the letters A - D in the answer box. Example, if the answer is London dispersion forces, then the answer is choice A.

i. LiCl (in water)

ii. Cl3PO

iii. SF6

​iv. CH(CH3)3

v. H2NNH2

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A molecule is essentially created by a collection of atoms linked by a network of bonds.

This experiment shows that the elements of pure solid substance in a system closed off from the surroundings has increased temperature very fast.

Pure substances are substances that are built up of only one kind of particle and have a fixed or abiding structure. Pure substances are further confidential as elements and compounds. An element is a substance that comprises only one type or kind of atom. a pure substance has a constant chemical composition.

No affair where you sample a substance, it is the same. For chemistry, the safest examples of pure substances are elements and compounds. So, examples cover gold, silver, helium, sodium chloride, and pure water.

So we can conclude that In chemistry, a pure substance is an element or compound made up of one type of particle.

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i honest dont evan speek spanish so good luck im gunna try to stark speeking spanish tho.

Answer:

Deberíamos hacerlo cuando volvamos de una tienda a nuestros hogares. Antes de comer, siempre debemos lavarnos las manos para que los gérmenes en nuestras manos no nos enfermen. Debemos lavarnos las manos durante al menos 20 segundos.

Answer:

(a) GaF3, gallium(III) fluoride

(b) LiH, lithium hydride

(c) AlI3, aluminum(III) iodide

(d) K2S, potassium sulfide

Since there are exactly as many electrons in electrically neutral atoms as there are protons in the nucleus, the electron configuration for silver is different.

Therefore, there are 47 electrons in a neutral silver atom. The positive nuclear charge and the other (Z - 1) negative electrons in the atom create electric fields that have an impact on each electron. The silver orbital diagram in the illustration makes this very evident. Silver has a 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 5s ground-state electron configuration. According to this electron configuration, silver has a single electron in its final shell and ten electrons altogether in its d-orbital.

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Answer:

I don't know if this is really helpful or not, but an electron weights 0.00000000000000000000000000091 grams.

Explanation:

May I have brainliest please? :)

Volume of the balloon at 2.00 × 10⁴ m is 1.52x10³ L

Volume is the three dimensional qualities that is used to measure capacity of solid shape and atmospheric pressure is the air around you has weight and it weighs down everything it touches is called atmospheric pressure

Here given data is

Pi = 1.0 atmosphere = absolute atmospheric pressure

P f = 61.0 mm Hg = atmospheric pressure

= 61.0/760 atmosphere

=  0.0802 atmosphere

Vi =  171 L

T i = 20.0°C = 20+273 = 293 K

T f = 210 K

We have to find volume of the balloon at 2.00 ×10⁴ m =?

Then the formula is

Pi × Vi/T i = P f × V f/T f

1 atm×171 L/293 K = 0.0802× V f/210K

V f = 1.52x10³ L

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The energy in joules of one mole of photons of visible light having a wavelength of 4.11×10^2 nm? can be expressed as 2.9*10^5 J

From the question we were told to find the energy and the parameters that is needed to calculate these are;

c=3*10^8

h= 6.626 * 10^-34 J.s

1 mol photons = 6.023x10^23 photon

λ = 4.11×10^2 nm  = 4.11 × 10-7 meters

The parameters can be input  as Energy of one mole photon (E) = ( 6.023x10^23 * 6.626 * 10^-34 * 3*10^8)/ (4.11 × 10^-7)

=291302

=2.9*10^5 J

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Taking into account the definition of wavelength, frecuency and propagation speed, the wavelength of light with a frequency of 2.04×10¹⁵ Hz is 147.06 nm.

The wavelength is the minimum distance between two successive points of the wave from which the wave repeats itself.It is expressed in units of length (m).

Frequency is the number of vibrations that occur in a unit of time. Its unit is s⁻¹ or hertz (Hz).

The propagation speed of a wave can be measured as the time that elapses between when it is emitted and when it is received. In other words, the speed of propagation of a wave is the magnitude that measures the speed at which the disturbance of the wave propagates along its displacement.

The propagation speed relate the wavelength (λ) and the frequency (f) inversely proportional using the following equation:

v = f×λ

All electromagnetic waves propagate in a vacuum at a constant speed of 3×10⁸ m/s, the speed of light.

In this case, you know:

Replacing in the definition of propagation speed:

3×10⁸ m/s= 2.04×10¹⁵ Hz× λ

Solving:

λ= 3×10⁸ m/s ÷ 2.04×10¹⁵ Hz

λ= 1.4706×10⁻⁷ m= 147.06 nm (being 10⁻⁹ m= 1 nm)

In summary, the wavelength of the wave is 147.06 nm.

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Answer:

14

Explanation:

same as the atomic number

Answer:

i moles of copper has 6.022 multiplied by 10raseto 23

Explanation:

Answer:

14.9 mol

Explanation:

To find the number of moles in a given mass of a sample of sodium chloride (NaCl), we can multiply the number of grams in the sample by the molar mass of sodium chloride, which is 58.44 g/mol.

871 g × (1 mol / 58.44 g)

= 871/58.44 mol

≈ 14.9 mol

Note that we rounded to 3 significant figures in the final answer because that is how many significant figures were given in the mass measurement of the sodium chloride sample.