PLEASE HELP ME GUYS, THANK YOU

Answer: Ram

Explanation:

Because as you mentioned in the beginning it is Ram's father

Answer:

Respiratory System

Explanation:

It connects with the lungs. The oxygen enters the body through the capillaries which are a part of the respiratory system.

Answer:

: B, if it is produced in an earlier step. Which term refers to a substance that is formed in one step of a reaction mechanism and consumed in a subsequent step of the reaction mechanism? D: reaction intermediate

Explanation:

pa brainlyes po kailangan lang talaga

Answer:

its D

Explanation:

trust

Answer:

is it 500 g

Explanation:

cause m stands for mass

To find the amount of heat produced, the value of m which we plug is 500 grams.

Amount of heat absorbed or released during any chemical change will be calculated as:

Q = mc∆T, where

Q = absorbed or released heat

m = mass of substance

c = specific heat of substance

∆T = change in temperature

So, according to question to calculate energy in place of m we will put the given mass of aluminum which is equal to 500g.

Hence required value of m is 500g.

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Answer: a. 2 C3H7OH + 9 O2 →  6 CO2(g)  + 8 H2O(g)

b. C6H12O6 + 6 O2 →  6CO2(g)  + 6 H2O(g)

Explanation:

Alcohols and sugars combust or when burned with oxygen forms carbon dioxide and water.

Explanation:

elctronic configuration of manganese

Mn=1s²2s²2p⁶3s²3p⁶4s²3d⁵

ground state

Mn=Ar3d⁵4s²

note that Ar is argon

Answer:

kinetic energy is the right answer

Answer: the answer is B

Explanation: its a spinning Ferris wheel meaning its in motion

The pressure of the gas that has 3.00mol sample of CO2(g) is in a rigid 6.00L container at 400°C is 27.6atm.

The pressure of a gas can be calculated using the ideal gas law equation as follows:

PV = nRT

Where;

P × 6 = 3 × 0.0821 × 673

6P = 165.76

P = 165.76 ÷ 6

P = 27.6atm

Therefore, the pressure of the gas that has 3.00mol sample of CO2(g) is in a rigid 6.00L container at 400°C is 27.6atm.

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Answer:

Chemistry is essential for meeting our basic needs of food, clothing, shelter, health, energy, and clean air, water, and soil. Chemical technologies enrich our quality of life in numerous ways by providing new solutions to problems in health, materials, and energy usage

Answer:

▪Why Is chemistry important in industry?

[Chemistry helps our industry produce more materials—such as paints, plastics, iron or steel, cement, kerosene, and also motor oil. Chemistry also helps farmers to enrich the soil with chemicals ... to grow fresh vegetables.] Chemistry is important, especially in household things like condoms, cleaning, and cooking.

▪10 Reasons Why Chemistry Is Important

➢Chemistry helps explain everything.

➢Being interested in chemistry opens up career options.

➢Chemistry helps people develop strong analytical skills.

➢Understanding chemistry keeps people safe.

➢Chemistry helps protect the environment.

➢Chemistry is used in law.

➢Chemistry is used in the food industry

➢Chemistry is important in agriculture

➢Chemistry is used in medicine

➢Chemistry is important for space travel

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Answer:

True. Heating may convert some matter into another substance, but the Law of Conservation of Mass states that matter may not be destroyed.

Explanation:

the answer is C

Answer:

hope you like it

Explanation:

No, your refreshing glass of water won't spontaneously combust. Water is made up of two elements, hydrogen and oxygen. Hydrogen is flammable, but oxygen is not. ... You can, however, break it down into hydrogen and oxygen by putting energy into it, in the form of an electric current.

Answer:

In this case the gravitational force is conservative, but the force you exert is not. So, as you lift the box, the work done by non-conservative forces (you) is not zero, and as a result, the total energy of the box increases.

But, Lifting a box is not scientifically considered "work"

Explanation: You do no work against gravity because you are not moving any distance (more accurately displacement) in the direction of the force i.e. the force and displacement are perpendicular once you have lifted the boxes. As work done = force x displacement parallel to the force, no work is done.

Hope This Helps :)

It is likely that Donna's blood alcohol concentration (BAC) will be about

10% higher than Allen's.

This is defined as the abundance of a constituent divided by the total

volume of a mixture.

During drinking, the concentration of alcohol is dependent on a lot of

factors such as the internal constituent of the body which is why Donna

will most likely have  a higher alcohol concentration.

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Answer:

Biological Evidence

Explanation:

Both blood and sweat are fluids within the body, therefore, both are biological substances.

The amount remaining after 36 years is 5 g

n = t / t½

n = 36 / 12

n = 3

N = N₀ / 2ⁿ

N = 40 / 2³

N = 40 / 8

N = 5 g

Therefore, the amount remaining after 36 years is 5 g

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Answer:

B

Explanation:

Answer:

E.)3p,4s,4d

Explanation:

In order as: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p… 1s will be filled first, with the maximum of 2 electrons. 2s will be filled next, with the maximum of 2 electrons. 2p will be filled next, with the maximum of 6 electrons.

B) 3p, 4s, 3d

hope this helped

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:

Answer:

3.6 moles of sodium bicarbonate were decomposed.  

Explanation:

The decomposition of sodium bicarbonate (NaHCO₃) to form sodium carbonate (Na₂CO₃), water, and carbon dioxide gas can be represented by the following balanced chemical equation:

[tex]\displaystyle 2\text{NaHCO$_3$}_\text{(s)} \longrightarrow \text{Na$_2$CO$_3$} + \text{H$_2$O}_\text{($\ell$)} + \text{CO$_2$}_{\text{(g)}}[/tex]

We want to determine the amount of sodium bicarbonate decomposed when 1.8 moles of carbon dioxde is produced.

From the equation, we can see that the mole ratio between carbon dioxide and sodium bicarbonate is 1:2. That is, there is one mole of carbon dioxide produced for every two moles of sodium bicarbonate.

Therefore:

[tex]\displaystyle 1.8\text{ mol CO$_2$} \cdot \frac{2\text{ mol NaHCO$_3$}}{1\text{ mol CO$_2$}} = 3.6\text{ NaHCO$_3$}[/tex]

In conclusion, 3.6 moles of sodium bicarbonate were decomposed.  

Answer:

An antenna

Explanation:

Radio waves are received by antennas

Answer:

First of all take separatory funnel.

Add the mixture of compounds into it.

Pour Water into it.

Add NaOH base. This will result in following reaction.

           CH₃CH₂CH₂COOH + NaOH  → CH₃CH₂CH₂COONa + H₂O

The resulting salt (CH₃CH₂CH₂COONa) is is soluble in water.

The water is the bottom layer (more density) and contains sodium butyrate.

Pour out the water from separatory funnel.

The organic layer (hexane) is left behind.

Now, take the aquous layer and neutralize it using HCl.

Once, neutralized remove the water.

The molality of chloride ions is 4.63kg/L

Data;

Mole Fraction of MgCl2 = 0.04

The sum of mole fraction = 1

Mole fraction of water = 1 - 0.04 = 0.96

since the total number of moles = 1

Number of moles of MgCl2 = mole fraction * total number of moles

Number of moles of MgCl2

[tex]0.04 * 1 = 0.04 moles[/tex]

Number of moles of water =

[tex]0.96 * 1 = 0.96 moles[/tex]

1 moles of MgCl2 = 2 moles of Chloride ions

Number of moles of chloride ions

[tex]2 * 0.04 = 0.08 moles[/tex]

Number of moles of water = 0.96moles

mass of water = molecular weight * number of moles

mass of water =

[tex]18 * 0.96 = 17.28g[/tex]

let's convert this to kilogram

[tex]1000g = 1kg\\17.28g = x\\x = 0.01728kg\\[/tex]

The molality of the ions in the solution is

[tex]M = \frac{mass of solute}{volume of solution} \\M = \frac{0.08}{0.01728} =4.63 kg/L[/tex]

The molality of chloride ions is 4.63kg/L

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Answer:

Please see below

Explanation:

Organic acid - An organic acid is an organic compound with acidic properties. Organic acids should include amino acids, fatty acids, ketoacids, and a variety of other endogenous and exogenous acids.

Dilute acid - A dillute acid is an acid which has water in a ratio of 90:10 90 water and 10 acid.

Indicator -  a substance (as a dye) used to show visually (as by a change in color) the condition of a solution with respect to the presence of a particular material

Neutralization - the reaction of an acid and a base forming a salt and water.

Acid rain - rainfall made so acidic by atmospheric pollution that it causes environmental harm, chiefly to forests and lakes. The main cause is the industrial burning of coal and other fossil fuels, the waste gases from which contain sulphur and nitrogen oxides which combine with atmospheric water to form acids.

Answer:

b

Explanation:

use Avogadro's number to convert molecules to moles

1 mole is equal to 6.023 × 10 ²³ molecules. 7.56 moles of carbon dioxide (CO2) are equivalent to 4.55 X 10^24 molecules.

The term mole is defined as the amount of substance of a system which contains as many elementary entities.

One mole of any substance is equal to 6.023 × 10²³ units of that substance such as atoms, molecules, or ions. The number 6.023 × 10²³ is called as Avogadro's number or Avogadro's constant.

The mole concept can be used to convert between mass and number of particles.

1 mole of any substance = 6.023 × 10²³molecules

1 mole of carbon dioxide = 6.023 × 10²³molecules

Then  4.55 X 10^24 molecules of CO₂ =  4.55 X 10^24 × 1 mole / 6.023 × 10²³

= 7.56 moles

Thus, 7.56 moles of carbon dioxide (CO2) are equivalent to 4.55 X 10^24 molecules.

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Answer: They are referred to as isotopes, which are a form of an element that has different numbers of neutrons in their nucleus.

The theory of phlogiston was the first to explain combustion process. J.J Becher was proposed this theory and states the existence of phlogisticated substances contain phlogiston and that they dephlogisticate when burned.

Combustion is the reaction of gases with atmospheric oxygen producing carbon dioxide and water. Gases like hydrocarbons easily undergoes combustion reaction.

Combustion is an exothermic reaction. Thus, heat is evolved to the surrounding. The conservation of mass is not only for combustion but it is the theory of every reaction.

The phlogiston idea, a debunked scientific hypothesis, suggested that combustible bodies contained a fire-like substance called phlogiston, which was produced after combustion.

Johann Joachim Becher originally put out the concept in 1667, and Georg Ernst Stahl later formalized it. The Phlogiston theory sought to explain a variety of chemical reactions, including burning and rusting Hence, option C is correct.

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Gregor Mendel researched and described the results of genetic crosses. He is considered the father of genetics.

Gregor Mendel was a botanist who made different genetic crosses using pea plants as a model organism.

Gregor Mendel observed as phenotypic traits were transmitted to the pea descendence in the F1 and F2 generation.

Gregor Mendel developed fundamental laws in genetics such as independent assortment and segregation.

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Isopropanol molecules are attracted to water at the surface and surround them. The water gets carried in and gets spread evenly in the solution.

A solution is formed when the water and the isopropanol get mixed and dissolved. Isopropanol is a polar solute that dissolves the water molecule in it to form a solution.

The polar molecules of the isopropanol get attracted towards the polar water molecules and start surrounding the water molecules.

The water molecules get carried in the isopropanol in the solution and get evenly dispersed in the solution.

Therefore, water and isopropanol form the solution.

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Answer:

The polar isopropanol molecules are attracted to the polar water molecules at the surface of the water.

✔ 1

The water molecules spread evenly throughout the solution.

✔ 4

The water molecules are carried into the solution.

✔ 3

The isopropanol molecules surround the water molecules.

✔ 2

Explanation:

The polar isopropanol molecules are attracted to the polar water molecules at the surface of the water.

✔ 1

The water molecules spread evenly throughout the solution.

✔ 4

The water molecules are carried into the solution.

✔ 3

The isopropanol molecules surround the water molecules.

✔ 2

Answer:

When two or more atoms are chemically joined together, this is called a molecule. In some cases, such as hydrogen and oxygen, the molecule is made entirely of the same atom, such as hydrogen gas (a molecule) is made entirely of two hydrogen atoms. Here, converting molecules to atoms is as simple as dividing by two.

Atoms can join together - they form bonds together - to make MOLECULES. For example, two atoms of hydrogen hook together to form a molecule of hydrogen