Draw the Lewis structure for ClO.

Answer:

2,760 grams NaCl

Explanation:

To find grams of NaCl, you need to (1) convert moles of Na to moles of NaCl (via mole-to-mole ratio from reaction) and (2) convert moles of NaCl to grams (via molar mass from periodic table). The final answer should have 3 significant figures based on the given measurement.

2 Na + Cl₂ --> 2 NaCl

Molar Mass (NaCl) = 22.99 g/mol + 35.45 g/mol

Molar Mass (NaCl) = 58.44 g/mol

47.2 moles Na           2 moles NaCl              58.44 grams

----------------------  x  ---------------------------  x  -------------------------  =
                                   2 moles Na                   1 mole NaCl

= 2,758.368 grams NaCl

= 2,760 grams NaCl

The molecular mass of the compound is required to calculate the molecular formula from the empirical formula.

A chemical formula that gives the total number of atoms of each element in each molecule of a substance.

Dividing the molar mass of the compound by the empirical formula mass. The result should be a whole number or very close to a whole number. Multiplying all the subscripts in the empirical formula by the whole number will give the resultant molecular formula.

Hence, the molecular mass of the compound is required to calculate the molecular formula from the empirical formula.

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The biotic factors are bacteria soil, dead leaves, and stream water.

An abiotic factor is a non-living part of an ecosystem that shapes its environment.

Biotic and abiotic factors make up a community via interaction.

Biotic factors are considered living things (having "life") while abiotic factors are simply non-living things.

The dead leaves of plants are an abiotic factor, the bacteria in soil are living matter and stream flowing, etc.

Hence, the biotic factors are bacteria soil, dead leaves, and stream water.

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Answer:

Above all are correct answer.

some other benefits are like, Dietary fiber increases the weight and size of your stool and softens

Answer:

I Think its fiber helps digestion and can prevent constipation.and soluble fiber helps lower cholesterol, which may prevent heart disease.

Explanation:

The graph would not have plummeted if various species were planted due to improvement of the potato crops.

The term variety has to do with the planting of different species of plants on the same farm. We know that the planting of different species of the same crop helps to improve the resistance to diseases of a plant.

Hence, the graph would not have plummeted if various species were planted due to improvement of the potato crops.

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(a) The nature of bond between A and B is an ionic bond.

(b) The two main properties of the ionic compounds are:

(c) If the ionic compound is dissolved in water, the ions in the solid separate and disperse uniformly

Ionic compounds contain ions and are held together by the attractive forces among the oppositely charged ions.

An ionic bond is formed by the complete transfer of some electrons from one atom to another. The atom losing one or more electrons becomes a cation—a positively charged ion.

In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.

When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution.

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Answer:

4.25atm

Explanation:

[tex]\frac{P1V1}{T1}\\[/tex]=[tex]\frac{P2V2}{T2}[/tex]

where ,

p1 =845/760=1.11atm

v1=6.50l

t1=25c +273k=298k

p2=?

v2=1850/1000=1.85l

t2=325k

so answer is 4.25 atm

Answer:

colourless

Explanation:

although the gaseous form of oxygen is colourless

when it liquefies it turns into a blue fluid.

hope this helps:)

Answer: The molecules are continually colliding with each other and with the walls of the container. When a molecule collides with the wall, they exert small force on the wall The pressure exerted by the gas is due to the sum of all these collision forces. The more particles that hit the walls, the higher the pressure. If a gas is heated up, its particles move around more quickly. They hit the walls of their container harder and more often. This increases the pressure. Sometimes the pressure gets so great that the container bursts.

Explanation:

Answer:

When a molecule collides with the wall, they exert small force on the wall The pressure exerted by the gas is due to the sum of all these collision forces. 

Explanation:

The molecules are continually colliding with each other and with the walls of the container. When a molecule collides with the wall, they exert small force on the wall The pressure exerted by the gas is due to the sum of all these collision forces. The more particles that hit the walls, the higher the pressure.

The concentration of the ions of the solution is 5.7 * 10^-4 M.

The ICE table can be used to determine the equilibrium constant of the process; SrSO4(s) ⇔ Sr^2+(aq) + SO4^2-(aq). ICE stands for initial, concentration and equilibrium.

Thus;

    SrSO4(s) ⇔ Sr^2+(aq) + SO4^2-(aq)

I                            0                0

C                          +x                +x

E                           x                 x

Now;

Ksp = x^2

x = √Ksp

x = √3.2 x 10-7

x = 5.7 * 10^-4 M

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Answer:

There is 1 cell in bacteria and it is called Prokaryotic cells

Explanation:

Answer:

clouds are formed when the invisible water vapour in the air condenses into visible water droplets or ice crystal

Answer: Clouds need two things to form: cool air and particles on which water vapor can condense. Clouds form as air cools. Cold air cannot hold as much water vapor, so the water vapor condenses. Water vapor condenses on small particles in the atmosphere, such as smoke, salt, and dust. As a result, clouds form.

Explanation: correct on edge

Answer: 40.5 mol

Explanation:

Since this is a double replacement reaction, the unbalanced equation is something like follows:

[tex]\text{K}_{3}\text{PO}_{4}+\text{NaOH} \longrightarrow \text{KOH}+\text{Na}_{3}\text{PO}_{4}[/tex]

Balancing this equation,

[tex]\text{K}_{3}\text{PO}_{4}+3\text{NaOH} \longrightarrow 3\text{KOH}+\text{Na}_{3}\text{PO}_{4}[/tex]

From this equation, we can conclude that for every 3 moles of sodium hydroxide consumed, 1 mole of potassium phosphate is consumed.

This means the answer is 13.5(3)=40.5 mol

The statement that defines the specific heat capacity for a given sample is the quantity of heat that is required to raise 1 g of the sample by 1°C (Kelvin) at a constant pressure.

Specific heat capacity is the of heat to increase the temperature per unit mass.

The formula to calculate the specific heat is Q = mct.

The options are attached here:

Thus, the correct option is 4. The quantity of heat that is required to raise 1 g of the sample by 1°C (Kelvin) at a constant pressure.

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Centimeters and millimeters are both interconvertible units to measure length. The conversion factor is as follows:

1 centimetre = 10 millimetres

This means that if a copper wire is 180cm long, the wire would be;

180 × 10 = 1800mm long

Also, the number of 40 mm segments of wire that can be cut from the length is calculated as follows:

1800mm/40mm = 45

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In this case, among the list of components given, the abiotic factors are water, rock, soil, and sun.

An abiotic factor is a non-living part of an ecosystem that shapes its environment.

Biotic and abiotic factors make up a community via interaction.

Biotic factors are considered living things (having "life") while abiotic factors are simply non-living things.

Hence, in this case, among the list of components given, the abiotic factors are water, rock, soil, sun

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[tex] \begin{gathered}\\ \underline{\boxed{\large\leadsto\frak\red{ Answer :- }}} \\ \end{gathered}[/tex]

What is an abiotic factor?

♠ Among the list of components given, the abiotic factors are water, rock, soil, sun

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

Considering the ideal gas law and the definition of molar mass, the molar mass of the sample of gas is 9.17 [tex]\frac{g}{mol}[/tex].

An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:

P×V = n×R×T

where:

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

In this case you know:

Replacing in the ideal gas law:

0.980 atm× 1.20 L= n× 0.082[tex]\frac{atmL}{molK}[/tex]× 287 K

Solving:

(0.980 atm× 1.20 L)÷ (0.082[tex]\frac{atmL}{molK}[/tex]× 287 K)= n

0.04997 moles= n

On the other hand, you know that the mass of the sample of gas is 0.458 grams. Replacing in the definition of molar mass:

[tex]molar mass=\frac{0.458 grams}{0.04997 moles}[/tex]

Solving:

molar mass= 9.17 [tex]\frac{g}{mol}[/tex]

Finally, the molar mass of the sample of gas is 9.17 [tex]\frac{g}{mol}[/tex].

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Answer:

The answer is D.

Explanation:

Including soluble fiber into your diet can lower cholesterol levels.

The genotype and phenotype ratio for the first cross will be 100% Rr and 100% round, while the second cross will be 1RR:1Rr, 50/50 round and wrinkled respectively.

Assuming that the seed shape allele is R(r).

For the first cross:             RR    x    rr

                                        Rr   Rr   Rr   Rr

Genotype ratio = 100% Rr

Phenotype ratio = 100% round

For the second cross:           RR    x    Rr

                                             RR   Rr   RR   Rr

Genotype ratio = 1RR : 1Rr

Phenotype ratio = 50% round and 20% wrinkled.

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Answer: A renewable resource is a resource that can easily be replaced over a short amount of time.

Explanation: Unlike the non-renewable resources, they can be replenished.

Examples for non-renewable: coal, oil, and fossil fuels.

Examples for renewable resources: Wind, nuclear, solar power, and water.

The alkali metals can't exist alone in nature because of incomplete outermost shell of alkali metals.

The alkali metals have the high thermal and electrical conductivity. It has high lustre, ductility, and malleability as compared to other materials. Each alkali metal atom has one electron in its outermost shell which make more reactive.

So we can conclude that the alkali metals can't exist alone in nature because of incomplete outermost shell of alkali metals.

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Answer:

0.03 mol

Explanation:

The equation relating the number of moles and number of atoms is:

Number of atoms = number of moles × 6.02 × 10²³

[6.02 × 10²³ is the Avogadro's constant and is the number of particles in 1 mole of any substance.]

By rearranging the equation, we can find the number of moles of calcium.

Number of moles = (3.01 × 10²²) ÷ (6.02 × 10²³)

Number of moles = 0.05 moles of calcium

Now the only data we know about these two elements are their Mr values, so we are going to find the number of moles of magnesium using ratio.

    Moles : Mr

0.05 mol : 40.1

           x  : 24.3

[we are going to assume that x is the number of moles of magnesium that we have to find out.]

Cross multiply the ratios.

40.1x = 0.05 × 24.3

x = 1.215 ÷ 40.1 = 0.03 mol

The answer to the problem 3.96 * 0.1159 is : 0.459 (3 significant figures)

Significant figures can be defined as numbers in a group of numbers that place number in the right value or worth.

Significant figures defined the value of measurement of  a particular number.

The rules of engagement in this case is the set of rules or laid down principles that direct how we interact with this significant figures and how they are used.

For this case the significant figures of the product will be the same as the figure with the least significant figure in the multiplication.

In conclusion, The answer to the problem 3.96 * 0.1159 is : 0.459 (3 significant figures)

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The percent composition of boron in diborane (b2h6) is 78% because the mass of boron is higher than hydrogen atom.

Diborane is a poisonous, reactive gas that is produced by the action of acids on borides. Diborane is used as a reducing agent for making other chemicals and also act as a catalyst.

So we can conclude that The percent composition of boron in diborane (b2h6) is 78% because the mass of boron is higher than hydrogen atom.

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The compound diborane can be used as a rocket propellant. the percentage composition of boron in diborane (B2H6) is 75%. Option D. This is further explained below.

Generally, Diborane is simply defined as a compound having the molecular formula B2H6, Diborane is more often known as diborane.

In conclusion, As a rocket fuel, diborane is a useful chemical. Diborane (B2H6) contains 75 percent boron by weight.

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Answer:it’s A

Explanation:

Smores are made up of different materials are made by squashing a hot, oozing marshmallow with chocolate between two Graham crackers. This is heterogeneous mixture.

A dessert consisting usually of toasted marshmallow and pieces of chocolate bar sandwiched between two graham crackers. Graham crackers, marshmallows, and chocolate are used to make s'mores. Homogenous mixture: A homogeneous mixture is a mixture of substances blended so thoroughly that you cannot see individual substances. Example- A mixture of salt and water, A mixture of water and sugar.

Heterogeneous mixture: A heterogeneous mixture is a mixture of two or more compounds. Example- Vegetable soup is a heterogeneous mixture. Any given spoonful of soup will contain varying amounts of the different vegetables.

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Answer:

Heat

Explanation:

He proved that heat was a form of energy. That is why the Joule (1 N*m or 1 kg*m^2/s^2) is the SI unit of energy. We now know that heat energy is a form of kinetic energy associated with temperature changes due to the vibrational motion in matter.

The equilibrium represents a buffer equilibrium is HI(aq)+H2O(l)→ H3O+(aq)+I−(aq)

Equilibrium is a process that occur in chemical reaction in which there is balance and stability. The rate of forward reaction is equal to the rate of backward reaction.

Buffer solution refer to a solution that have conjugate base and weak acid.

In buffer equilibrium, the weak acid isequal to the conjugate base be

Therefore, The equilibrium represents a buffer equilibrium

is HI(aq)+H2O(l)→ H3O+(aq)+I−(aq)

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The volume of distilled water added to the original solution is closest to 300.0 ml.

The potential of hydrogen is a measure of the acidity or alkalinity of a solution equal to the common logarithm of the reciprocal of the concentration of hydrogen ions in moles per cubic decimetre of solution.

Concentration of 30.0 ml sample of [tex]HNO_3[/tex] solution is = 6.31 X [tex]10^{-5}[/tex] M

pH of diluted [tex]HNO_3[/tex] solution = 5.20

We know that,

[tex]pH= -Log [H^+][/tex]

[tex]5.20= -Log [H^+][/tex]

[tex][H^+] = 10^{-5.2} = 6.31 X 10^{-6} M[/tex]

Hence, concentration of unknown diluted [tex]HNO_3[/tex] solution is 6.31 X [tex]10^{-5}[/tex] M.

By the use of the equation:

[tex]HNO_3[/tex] Concentration = [tex]HNO_3[/tex] diluted

[tex]V_{dil} = \frac{(C_conc X V_conc)}{(C_{dil})}[/tex]

[tex]V_{dil}[/tex] = (6.31 X [tex]10^{-5}[/tex] M X 30.0 ml) ÷ (6.31 X 10^{-6} M)

[tex]V_{dil} = 300.0 ml[/tex]

Hence, the volume of distilled water added to the original solution is closest to 300.0 ml.

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Answer:

Option C

Explanation:

Organisms break down starch into glucose

Answer:

Organisms break down starch into carbohydrate subunits.

Explanation:

So option C is correct

Explanation:

the answer for the above

is b)0.019