Assume the specific heat of the solution is equal to the specific heat of water

Yes the all types of the consumers are the heterotrophs.

The consumers play a very important role in the ecosystem of the earth by maintaining the population and growth to the organism of the ecosystem. If we remove the consumer or either the producer then the whole system of the ecosystem will be destabilize, and thus the ecosystem can survive from the overpopulation problem and lack of food problem. The other organism can transfer energy to the consumer.

Both the primary (herbivores) and as well as the secondary (carnivores and omnivores) consumers are heterotrophs.

So we can conclude that yes the all types of the consumers are the heterotrophs.

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Remember that 1 nanometer is equal to 1 x 109, therefore multiply 6.49 x 10-3 m by 1 x 109 to get the answer. The correct response is 6.49 x 10-3 m = 6.49 x 106 nm.

What are nanometers used for?

The measuring unit known as a nanometer (NM) is one billionth of a meter. It is frequently used as a scale for creating intricate, atomic-scale parts, particularly in nanotechnology.

What dimension does a nanometer have?

How tiny is "nano" exactly? One nanometer is one billionth of a meter since the prefix "nano" in the International System of Units refers to one billionth, or 10-9. Here are some samples to help you visualize how little that is: About 100,000 nanometers make up a sheet of paper.

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Answer:

Determining an Empirical Formula from Combustion Data

Explanation:

Step 1: Identify the mass of carbon dioxide and water produced by the combustion.

Step 2: Find how many moles of carbon are in carbon dioxide.

Step 3: Find how many moles of hydrogen are in water.

Answer: a

Explanation:

i hope is help

Heat absorbed by 50 g of iron is 898 Joule.

Heat transfer between two bodies, which can take place through conduction, convection, or radiation, is referred to as heat absorption.

Specific heat - The amount of heat needed to raise a substance's temperature by one degree Celsius in one gram, also known as specific heat. The units of specific heat are usually expressed in terms of calories or joules per gram per degree Celsius. The specific heat of water, for instance, is 1 calorie (or 4.186 joules) per gram per degree Celsius.

The formula of specific heat-

q = mc ΔT

where Q is heat absorbed, m is mass and ΔT is change in temperature.

m = 50 g

c = 0.449 J/g C

ΔT = 60 - 10

     = 40 °C

∴q = 50 x 0.449 x 40

q = 898 J

Hence, heat absorbed by 50 g of iron is 898 Joule.

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The concentration of this solution in moles is 0.75 M.

The concentration of a solution is a measure of the amount of solute that has been dissolved in a given amount of solvent or solution.

Mathematically. concentration is given as;

C = n/V

where;

At a constant number of moles;

C1V1 = C2V2

When you boil away 2/3 volume, the new volume becomes 1/3

So V1  = V

V2 = 1/3V = 0.3333V

Substitute the given parameters and solve for the new concentration.

C2 = (C1V1)/V2

C2 = (0.25 x V) / (0.3333V)

C2 = 0.75 M

Thus, the concentration of this solution in moles is 0.75 M.

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256.73 ft

Convert 7.27 [tex]m^3[/tex] to[tex]ft^3[/tex]

as per above , we have to convert [tex]m^3[/tex] into [tex]ft^3[/tex]

now:

1 [tex]m^3[/tex] = 35.31  [tex]ft^3[/tex]

7.27 [tex]m^3[/tex] = 35.31 [tex]\times[/tex] 7.27 [tex]m^3[/tex]

               = 256.73 ft

meter cubic and feet both are volumetric unit

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The empirical formula of the compound that decomposes is [tex]N_{2} O[/tex]

The term decomposition refers to a type of reaction in which a substance is broken down into its components. We know that a compound is composed of atoms. When there is a decomposition reaction, the atoms of the compound break down.

We can see that the products of the decomposition reaction are nitrogen and oxygen. The red spheres represent oxygen atoms, and the smaller, blue spheres represent nitrogen atoms.

We know that nitrous oxide decomposes to give nitrogen and oxygen. Thus the empirical formula of the compound is [tex]N_{2} O[/tex].

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The area of the rectangular painting which is 2890 square centimeters is equivalent to 447.95 square inches

Square inch (in²) is a unit of area equal to the area of a square the sides of which are each one inch long.

Square centimeter (cm²) is another unit of area equal to that of a square of sides 1 centimeter.

The conversion factor of square centimeter to square inches is as follows:

1 square centimetre = 0.155 square inch

2890 square centimeters = 447.95 square inches

Therefore, the area of the rectangular painting which is 2890 square centimeters is equivalent to 447.95 square inches.

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Answer: The Marshmellow

Explanation

The marshmallow turns from a solid to a gooey texture.

The rate of effusion of helium under same conditions as that of ammonia  is 4.897 mole/min.

Rate of effusion of ammonia is 0.49 times the effusion of helium.Thus, to find out effusion of helium ,effusion of ammonia is divided by 0.49.

Thus, effusion of helium=effusion of ammonia/0.49

=2.40/0.49

=4.897 mole/min.

Effusion relates to the ability of gas to travel through a small opening.Rate of effusion of a gaseous substance is inversely proportional to square root of it's molar mass.The relationship between molar mass and rate of effusion is called Graham's law.

Effusion rate directly depends on the average velocity with which a particle moves.Higher the velocity of particles,higher is the effusion rate.

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Answer:

4OH-→ 2H²O(l) + O² + 4e- (Anode)

2H+ → H²O (l) + 2e- (Cathode)

Explanation:

OH- ions are preferentially discharged at the anode since they have a less positive electrode potential (+0.40V) then chloride ions (+1.36)

H+ ions are preferentially discharged at the cathode since they have a less negative standard electrode potential (0.00) than Potassium (-2.92)

Answer:

Pb(ClO₄)₂ (aq) + 2 NaCl (aq) -----> 2 NaClO₄ (aq) + PbCl₂ (s)

Explanation:

This chemical reaction is a double-displacement reaction. In these reactions, the cation of one compound is swapped with the cation of another.

So, lead (II) (Pb²⁺) from lead (II) perchlorate (Pb(ClO₄)₂) will be swapped with sodium (Na⁺) from sodium chloride (NaCl). When creating the new compounds, there may need to be more than one ion of a particular type in order to make the overall compound neutral.

An equation is balanced when there is an equal amount of each element on both sides of the reaction. If these amounts are unequal, you can add coefficients to modify the quantities of particular compounds.

The unbalanced reaction:

Pb(ClO₄)₂ (aq) + NaCl (aq) -----> NaClO₄ (aq) + PbCl₂ (s)

Reactants: 1 lead, 3 chlorine, 8 oxygen, 1 sodium

Products: 1 lead, 2 chlorine, 4 oxygen, 1 sodium

The balanced reaction:

Pb(ClO₄)₂ (aq) + 2 NaCl (aq) -----> 2 NaClO₄ (aq) + PbCl₂ (s)

Reactants: 1 lead, 4 chlorine, 8 oxygen, 2 sodium

Products:  1 lead, 4 chlorine, 8 oxygen, 2 sodium

Answer:

To find the formula of an ionic compound, first identify the cation and write down its symbol and charge. Then, identify the anion and write down its symbol and charge. Finally, combine the two ions to form an electrically neutral compound.

Explanation:

Fluorine has the strongest base among fluorine, chlorine and bromine.

Fluorine belongs to the group of halogens.  It is represented with the letter F and has an atomic number 9. Fluorine is the smallest element among the halogens and hence its electrons are attached very strongly with the nucleus. As a result, fluorine has the most tendency to accept electron to complete its valence shell and therefore is the strongest base.

Bases are the molecules or ions that can accept electrons to complete their outer valence shell. This justifies fluorine being the strongest base among halogens. Bases are generally bitter in taste, with a soapy touch. A pH above 7 specifies basicity.

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A piece of magnesium in the shape of cube measuring with height of 5.62 cm, and this magnesium sample having mass of 1.41 g has a density of 1.78 g/cm³.

What is Density?

Density is known as the mass of substance per unit volume. Density is denoted by a Greek symbol ρ. Density is equal to the mass substance divided by its volume. The SI unit of Density is g/cm ³or kg/m³.

                                     ρ = m

                                             v

where,

ρ = density

m = mass

v  = volume

Given :

Height of the cylinder is 5.62 cm ,

Diameter of the cylinder is 1.34 cm

Radius = D/2 = 1.34/2 cm

Radius = 0.67 cm

Volume of cylinder = πr²h

Volume of cylinder = 3.14 × (0.67)² × 5.62

                                = 7.92 cm³

 Density =   Mass  

                 Volume

Density = 14.1

                 7.92

 Density = 1.78 g/cm³

Hence, the density of sample = 1.78 g/cm³ .

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Answer: kinetic or A :)

Explanation: kinetic energy Alpha particles have typical kinetic energy of 5 MeV (or ≈ 0.13% of their total energy 110 TJ/kg) and have a speed of about 15 000 000 m/s or 5% of the speed of light.

hope this helped !! - hailey

The concentration of the new solution, given that 2/3 of it's initial volume was boiled away is 0.758 M

The following data were obtained from the question:

The molarity of the new solution can be obtained as follow:

M₁V₁ = M₂V₂

0.250 × 1 = M₂ × 0.33

0.250 = M₂ × 0.33

Divide both side by 0.33

M₂ = 0.250 / 0.33

M₂ = 0.758 M

Thus, the concentration of the new solution is 0.758 M

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The way in which theories and models may be modified but are rarely discarded completely is shown in the geocentric and heliocentric models of the solar system are the fact that similar assumptions were made, but the main difference is the position of the earth and the sun.

This refers to the theory of the solar system that is based on the assumption that the earth is the center of the universe and the planets and sun move around it

This refers to the theory of the solar system that is based on the assumption that the sun is the central point of the universe and the planets and sun move around it

Hence, The way in which theories and models may be modified but are rarely discarded completely is shown in the geocentric and heliocentric models of the solar system are the fact that similar assumptions were made, but the main difference is the position of the earth and the sun.

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The Molarity of solution if a 2.45M of sulphiric acid solution has a density of 1.15g/ml at 20degree celesius is 2.69M.

Given,

Density of the solution = 1.15 g/mL

Molarity of the sulphiric acid = 2.45M

Molar mass of sulphuric acid = 98 g

Density is given as:

[tex]Molarity(\frac{1}{molarity} +\frac{mol.wt}{1000} )\\\\=2.45(\frac{1}{molarity} + \frac{98}{1000} )\\\\(\frac{1}{molarity} = (\frac{1.15}{2.45} + \frac{98}{1000} \\\\(\frac{1}{molarity} = 0.469 - 0.098\\\\(\frac{1}{molarity} = 0.371\\\\Molarity = 2.69m\\\\[/tex]

The Molarity of solution if a 2.45M of sulphiric acid solution has a density of 1.15g/ml at 20degree celesius is 2.69M.

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The percent yield of the ether is 66.5% and the mass of ethylene produced is 4.9 g.

We know that in a reaction, we are only able to obtain the parameter of the reactions by the use of stoichiometry. This is the relationship between the reactants and the products in the process.

The reaction is given as shown in the reaction equations in the question above.

Number of moles of ethanol =  54.0 g /46 g/mol = 1.17 moles

Since 2 moles of ethanol yields 1 mole of ether

1.17 moles of ethanol yields 1.17 moles * 1 mole /2 moles

= 0.585 moles

Mass of the ether = 0.585 moles * 74 g/mol = 43.29 g

Percent yield = 28.8 g/ 43.29 g * 100/1

= 66.5 %

Amount of unreacted ethanol = (100 - 66.5)/100 * 1.17 moles = 0.39 moles

Amount that participates in the side reaction  45.0/100 * 0.39 moles = 0.1755 moles

Given that the reaction is 1:1

Mass of ethylene produced = 0.1755 moles * 28 g/mol = 4.9 g of ethylene

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When the total number of reactants and products are the same in the reaction it is called a balanced chemical equation. The balanced chemical equation of H2+ Cl2   → 2HCl(g)

When the total number of reactants and products are the same in the reaction it is called a balanced chemical equation. In the given reaction one mole of 70 g of hydrogen reacts with 2 moles of Cl.

100 g of chlorine reacts with 2/ 70 * 100 = 2.86 gram of hydrogen.

70 grams of chlorine will produce 73 g of HCl.

100 gram of chlorine produce 73/ 70 * 100 = 104.28 g of HCl.

Therefore, When the total number of reactants and products are the same in the reaction it is called a balanced chemical equation. The balanced chemical equation of H2+ Cl2   → 2HCl(g).

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Taking into account the scientific notation, you obtain:

Scientific notation is a quick way to represent a number using powers of base ten and the numbers are written as a product:

a×10ⁿ

where:

You want to subtract two numbers in scientific notation. It should be noted that when the numbers to be added do not have the same base 10 exponent, the base 10 power with the highest exponent must be found.

Then all the values ​​are expressed as a function of the base 10 exponent with the highest exponent.

Taking the quantities to the same exponent, all you have to do is substract what was previously called the number "a". In this case:

In this case:

In summary, you obtain:

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The given operations are performed

and the expressions are presented

in scientific notation as follows;

1) (1.2 × 10⁵) + (5.35 × 10⁶) = 5.47 × 10⁶

2) (6.91 × 10^(-2) + (2.4 × 10^(-3)) = 7.15 × 10^(-2)

3) (9.70 × 10⁶) + (8.3 × 10⁶) = 1.053 × 10⁷

1) (1.2 × 10⁵) + (5.35 × 10⁶)

(1.2 × 10⁵) + (5.35 × 10⁶) = (1.2 × 10⁵) + (53.5 × 10⁵)

(1.2 × 10⁵) + (53.5 × 10⁵) = (1.2 + 53.5) × 10⁵

(1.2 + 53.5) × 10⁵ = 54.7 × 10⁵

54.7 × 10⁵ = 5.47 × 10⁶

Therefore;

(1.2 × 10⁵) + (5.35 × 10⁶) = 5.47 × 10⁶

2) (6.91 × 10^(-2) + (2.4 × 10^(-3))

(6.91 × 10^(-2) + (2.4 × 10^(-3)) = (69.1 × 10^(-3) + (2.4 × 10^(-3))

(69.1 × 10^(-3) + (2.4 × 10^(-3)) = (69.1 + 2.4) × 10^(-3)

(69.1 + 2.4) × 10^(-3) = 71.5 × 10^(-3)

71.5 × 10^(-3) = 7.15 × 10^(-2)

Therefore;

(6.91 × 10^(-2) + (2.4 × 10^(-3)) = 7.15 × 10^(-2)

3) (9.70 × 10⁶) + (8.3 × 10⁵)

(9.70 × 10⁶) + (8.3 × 10⁵) = (97.0 × 10⁵) + (8.3 × 10⁵)

(97.0 × 10⁵) + (8.3 × 10⁵) = (97.0 + 8.3) × 10⁵

(97.0 + 8.3) × 10⁵ = 105.3 × 10⁵

105.3 × 10⁵ = 1.053 × 10⁷

Therefore;

(9.70 × 10⁶) + (8.3 × 10⁵) = 1.053 × 10⁷

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Given that hydrogen is not able to donate its single electron,  the water molecule forms by the sharing of electrons between two hydrogen atoms and an oxygen atom.

This is the type of bond which occurs when the electrons of an atom are shared unlike electrovalent bond which is formed when the electrons are transferred from one atom to another.

In this case, since hydrogen can't transfer electron and oxygen needs two electrons to achieve its stable configuration then two hydrogen atoms will share one electron each with the oxygen atom which results in the formation of water.

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A nurse decides to move from England to India. The nurse currently makes 46,800 Euros as their annual salary. in Indian Rupees every month the nurse's salary will be Rs.  3,70,968

Let us Consider the following given data

The Nurse current salary is 46,800 Euros

We have to find 1 month's salary of the annual .

We know that one year contains 12 months .

Therefore 1 month's  salary = 46,800/12

   =3,900 euros per month

To find: The nurse's salary  every month in Indian rupee

1 Euro = Rs. 95.12

= 3,900 ×Rs.95.12

= Rs.  3,70,968 ( three lakh seventy thousand nine hundred sixty eight rupees in Indian currency .)

The nurse's salary in Indian rupees per month is 3,70,968 rupees

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Answer: B

Explanation:

The atomic number of an element is the number of protons in the nucleus of an atom of that element. Changing the number of neutrons means you get an isotope of the same element. Changing the number of electrons does not affect the atom but affects the charge of the atom. So the periodic table is arranged by increasing the number of protons or atomic numbers.

Answer: To Know That They Did Nothing Wrong

Explanation:

For Example, They Maybe Put The Wrong Thing
Or They Made The Different One Instead Of What They Were Supposed To Do