Compare the energy requirements of a 50 year old woman and 50 year old man.​

Answers

Answer 1

Explanation:

For both men and women, the basics of a balanced diet are the same. Men have higher caloric requirements than women since they have a bigger body (both in height and weight) and more muscular mass.

So, Men needs more energy.

50 year old woman require less energy than 50 year old man.​


Related Questions

Water glass is found in

A. Liquid form at room temperature

B. solid state at room temperature

c. semi liquid form at room temperature

D. None of above​

Answers

Answer:

liquid form

Explanation:

am i right? if right like

Answer:

semi-liquid at room temperature

Imagine a substance that is a red, shiny solid at room temperature, with a melting point of 115 °C. It is brittle and a poor conductor of heat. State whether this substance is a metal or a non-metal. Give a reason for your answer.

Answers

Explanation:

Metals and non-metals can be identified either by their position in the periodic table or by their properties.

he metal elements are found on the left hand side of the periodic table, and the non-metal elements are found on the right. You can imagine a zig-zag line, starting at B-Al-Si, separating metals from non-metals.

what is meant by reaction element​

Answers

Answer: A reaction element are those elements that can take part in a chemical reaction.

Explanation:

An element is made up of atoms that has the same atomic number. It is the basic material of which all matter is composed of. These elements cannot be broken down further into smaller substances by any chemical reaction. Each element has a unique number of protons in its atom. For example,

--> a hydrogen atom has 1 proton,

--> a Helium atom has 2 protons,

--> a Lithium atom has 3 protons, and

--> a carbon atom has 6 protons.

A chemical reaction on the other hand involves rearrangement of the constituent atoms of reactants to create different substances as products. The bonds between atoms are either broken or created to form new molecules. There are different types of chemical reaction which includes:

--> Decomposition reaction

--> Neutralization reaction

--> single displacement reaction and

--> combustion reaction.

Which statement is true about percent yield

Answers

The options ? We can’t answer your questions without any options or choices

HELP . Read the following graduated cylinder.


Use this media to help you complete the question.


22.0 mL

22 mL

23.0 mL

22.5 mL

Answers

The volume of the liquid from the graduated cylinder is 22.5 mL

The last option (22.5 mL) is the correct option

The question seems to be incomplete

The image that completes the question is shown in the attachment below.

From the image, we observe that the liquid meniscus is between the 20 mL and 25 mL marks. That means the volume will lie in this range.

NOTE: The meniscus of a liquid is the upward or downward curve seen at the top of a liquid in a container.

The type of curve shown in the image is a concave meniscus and the volume of the liquid is read from the bottom of the curve.

To read the value from the graduated cylinder, we will first determine the difference between two consecutive lines. Between the 20 mL and 25 mL mark (two thick lines), we have 5 spaces separated by thin lines.

The measure between two consecutive lines is the difference between two thick lines divided by number of spaces between them

∴ The measure between two consecutive lines = (25mL - 20mL) ÷ 5

The measure between two consecutive lines = 5mL ÷ 5 = 1 mL

Now, to read the position of the liquid,

Starting from the 20 mL mark, the liquid exceeds two more lines + half way to the next line ( that is 2mL + 0.5 mL)

∴ The position of the liquid is 20 mL + 2mL + 0.5 mL = 22.5 mL

Hence, the volume of the liquid from the graduated cylinder is 22.5 mL

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Answer:

The answer is  22.5 mL

Explanation:

I hope this helps you :)

Answer: Freezing point depression

Answers

Explanation:

freezing point depression is a phenomenon that describes why adding a solute or solvent results in the lowering of the freezing point of the solvent

Identify each transition in this flowchart as a chemical change or a physical change.

Answers

Answer:

so i think physical change

Which sentence describes existing cells?


All cells, once formed, continue to live forever.


All cells come from previously existing cells.


All the cells that are on Earth have always been here.


All cells develop from the remains of other cells.

Answers

Hdhzhhw bzJijw d diaiwor
I believe it would be the second one

how can we separate the sugar from sugar solution​

Answers

The process of distillation

what’s the name of the organic molecule

Answers

Answer:

hexane

Explanation:

This is a 6- carbon hydrocarbon with no multiple bonds or any functional groups (such as -OH). Thus, the prefix 'hex' refers to the 6 carbons and 'ane' refers to the molecule being an alkane.

Naming molecules:

Number of carbons

• pentane: 5 carbons

• hexane: 6 carbons

• heptane: 7 carbons

• octane: 8 carbons

• nonane: 9 carbons

Functional groups (for 6- carbons molecules)

• Alkene (C=C): hexene

• Alcohol (-OH): hexanol

• Alkyne (C≡C): hexyne

The atomic mass of calcium is calculated by adding the mass (amount) of

A) Protons and Electrons
B) Protons and Neutons
C) Electrons and Neutons
D) Protons and Protons​

Answers

Answer:

B. Protons and Neutrons

Answer:

Option"B" is correct.

MARK ME BRAINLISTS

Which statement describes the periodic law?

Help please now!

Answers

Answer:

Answer is: elements in the same group have similar chemical properties. Periodic law is the arrangement of the elements in order of increasing atomic number.

por que existen diferencias en el consumo del agua de las personas?

Answers

Las diferencias entre el consumo de agua existen debido a que varios factores externos inciden en este proceso de ingesta de agua.

El agua es un compuesto químico que es vital para la vida de los seres vivos. En el caso de los humanos es necesario tomar agua para evitar la deshidratación y activar muchos procesos naturales del cuerpo.

La cantidad de agua que debe tomar un humano depende de varios factores como:

La temperatura del lugar en el que esté, si está en un lugar con mayor temperatura la sudoración hará que requiera más agua.La cantidad de actividad física que realiza, entre más actividad física se eliminan más líquidos corporales por medio del sudor.La salud, cuando tiene alguna enfermedad como diarrea o vómito puede perder líquido más rápidamente.Embarazo y lactancia, las mujeres en estado de embarazo y lactancia deben tomar más agua dado que un porcentaje del agua de su cuerpo se va para el consumo de su hijo.

Incluso la cantidad de agua de agua puede variar dependiendo del peso de cada persona, aquellas personas que pesan más deben beber más agua, que aquellas que tienen menor peso debido a que la cantidad de agua debe ser proporcional a su peso.

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differentiate between Physical and chemical changes​

Answers

Answer:

In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed.

I HOPE THIS WILL HELP YOU IF NOT THEN SORRY HAVE A GREAT DAY:)

Physical changes are things like rearranging your room, it may look different but the chemical makeup is the exact same as before. Chemical changes are what happens when wood is burnt to charcoal, or when you dissolve salt in water. Hope this helped!

Identify an element as a metal or a non-metal according to its position in the Periodic
Table

Answers

Answer:

Metals on the left of the Periodic Table.

Non-Metals on the top-right, plus Hydrogen.

Identify each of the highlighted materials as an element, a compound, or a mixture, and explain your reasoning.

Answers

Answer:

These are compounds.

Explanation:

As it is formed by chemically bonding of two elements C ( carbon) and H (hydrogen) .

Its not a mixture because mixture is Just dispersed of diferrent elements or a compound which are not in fix ratio

Answer:

Butane and benzene are both compounds. They contain multiple elements bonded together in a specific ratio. Kerosene and gasoline are mixtures because they are combinations of several compounds. Oxygen is an element because it is made up of only one type of atom.

Explanation:

Assertion: Atomic mass of aluminium is 27 Reason: An atom of aluminium is 27 times heavier than 1 / 12th of the mass of the C – 12 atoms.​

Answers

Answer:

i is the correct answer.

Explanation:

the RAM of aluminum is indeed 27. And since the RAM of substances are measured in terms of the C-12 isotope then R indeed explains why the RAM Al is 27.

the element of group 1 are reactive but those of group 18 are inert, why​

Answers

Answer:

Because elements of group  1 does not have stable electronic configuration and elements of group 18 have stable electronic configuration.

Explanation:

Because elements of group 1 do not contain stable electronic configuration and elements of group 18 include stable electronic configuration.

What are the element of group 1?

Group 1 elements contain the alkali metals, Li, Na, K, Rb, Cs, and Fr. The alkali metals exist all soft, shiny, and metallic when cut. They react efficiently with water, have low melting points and densities, and are good conductors of electricity. They all include one valence electron that they lose easily to form ions. Noble gas exists as any of the seven chemical elements that create up Group 18 (VIIIa) of the periodic table. The elements exist as helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).

The element of group 1 exist as reactive but those of group 18 exist as inert Because elements of group 1 do not contain stable electronic configuration and elements of group 18 include stable electronic configuration.

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A car of 1200 kg is moving with a speed of 36 Km/hr. It is stopped by applying brakes withion with in 5 seconds. Calculate the amount of force required to stop the car.

Answers

Answer:

–2400 N

Explanation:

This is a physics question. However, the answer to the question is given below.

We'll begin by converting 36 Km/hr to m/s. This can be obtained as follow:

3.6 Km/hr = 1 m/s

Therefore,

36 Km/hr = 36 Km/hr × 1 m/s / 3.6 km/hr

36 Km/hr = 10 m/s

Thus, 36 Km/hr is equivalent 10 m/s.

Next, we shall determine the acceleration of the car. This can be obtained as follow:

Initial velocity (u) = 10 m/s

Final velocity (v) = 0 m/s

Time (t) = 5 s

Acceleration (a) =?

a = (v – u) / t

a = (0 – 10) / 5

a = – 10 / 5

a = –2 m/s²

Finally, we shall determine the force required to stop the car. This can be obtained as follow:

Mass (m) = 1200 Kg

Acceleration (a) = –2 m/s²

Force (F) =?

F = ma

F = 1200 × –2

F = –2400 N

NOTE: The negative sign indicate that the force is in opposite direction to the motion of the car.

If 16.4 grams of calcium nitrate is heated as shown in the reaction:

2Ca(NO3)2 -> 2CaO + 4NO2 + O2.

Calculate the volume of nitrogen dioxide produced at STP.​

Answers

Answer:

7.2

Explanation:

you first have to find the number of moles of nitrogen dioxide by using the number of moles for calcium nitrate and the mole to mole ratios

number of moles of calcium nitrate=mass/mm

=16.4/102

=0.16g/mol

then you use the mole to mole ratios

2 : 4

0.16: x

2x/2=0.64/2

x=0.32g/moles of nitrogen dioxide

then you use the formula for the volume

v=22.4n

=22.4×0.32

=7.2

I hope this helps

define measurment and its importance ​

Answers

Answer:

Explanation:

A measurement is the action of measuring something, or some amount of stuff. So it is important to measure certain things right, distance, time, and accuracy are all great things to measure. By measuring these things or in other words, by taking these measurements we can better understand the world around us.

Answer:

Measurement is the process of comparison of an unknown physical quantity with a known physical quantity.

It is important because measurement is needed in every day life we need measurement in simply cooking food to designing a house and many more other works.

Explanation:

hope this helps you.

2500m into kilometer​

Answers

Answer

1 meter = 1000 km

2500 meter = 2500/1000 km

= 2.5 km

4. Calculate the relative molecular masses of the following substances [RAM: H=1, O=16, S=32, C=12, N=14] a. CH2(NH2)COOH b. H2SO4​

Answers

Answer:

a. CH2(NH2)COOH

[tex]molecular \: mass = (12 \times 2) + (5 \times 1) + (14 \times 1) + (16 \times 2) \\ = 24 + 5 + 14 + 32 \\ = 75 \: grams[/tex]

b. H2SO4

[tex]molecular \: mass = (2 \times 1) + 32 + (16 \times 4) \\ = 2 + 32 + 64\\ = 98 \: grams[/tex]

what apparatus is used to investigate the conductivity of solutions​

Answers

The conductivity apparatus consists of an electric lamp in series with open electrodes. The electrodes will fit inside a 50 ml beaker containing the liquid to be tested. The electrodes are to be rinsed thoroughly with distilled water between testing the different samples.


value of MA is always lesser thàn 1 why?​

Answers

Answer:

because the load arm is greater than the effort arm. As we know that when the load arm is greater than the effort arm, the mechanical advantage will always be lesser than one, which results in gain in speed

why are structural formulas good for depicting polymers?​

Answers

Answer:

Structur formulas are good for depicting polymers because they explain the properties and structure of the compound which empirical and molecular formulas cannot always represent.

Hope it helps you.

Structural formulas describe the bonds shared by the elemental atom. They are good for depicting polymers as they describe the structure and the properties.

What are polymers?

Polymers are said to be substances that are either natural or synthetic and are macromolecules made of various chains of monomers joined together.

The actual structure and arrangement of the atoms in the polymers are depicted by the structural formula. These were not explainable by the empirical, or molecular formulas.

The atoms involved and the linkage between them are described through the structures and allow us to know the certain properties of the monomers involved. It gives the idea of the chemical and physical properties.

Therefore, the structural formulas depict the polymer.

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Define physical and chemical properties, provide three examples of each, discuss their reversibility, and explain the fundamental differences between them.

Answers

Answer:

Physical properties are defined as the properties which can be observed without changing its chemical composition.

For example: color, volume, and molecular weight.

Chemical properties are defined as the properties which can be observed only after changing chemical identity of the substance.

For example: reactivity, toxicity, and flammability.

The fundamental differences between physical and chemical properties are as follows:

Chemical properties are related to chemical bonds of the substance while physical properties are not.

In chemical properties, chemical identity of substance changes while physical properties do not have any change.

Chemical properties predict the reaction of substance while physical properties only describe the appearance of the substance.

Explanation:

Answer:

A measurable property that can be observed typically and explains any matter or organism's appearance and physical behavior is called a physical property. Examples of physical properties are appearance, boiling point, freezing point, melting point, colors, odor, mass, density, solubility. Properties that are only observed during a reaction or change in the composition of a matter is called a chemical property. These properties describe the internal part of anything and explain how it behaves when reacted with other chemical substances. Examples are enthalpy, entropy, reactivity, flammability, oxidation state, acidity, basicity. Some physical properties are reversible or sometimes irreversible. Like the change of states of matter is reversible, and the growth of an organism is irreversible. The same thing with the chemical properties. There are reversible chemical reactions(formation of ammonium chloride) and irreversible chemical reactions. (burning of a chemical substance). After knowing all about these properties, the most fundamental difference is that the physical properties can be measured without any chemical change in them. But a chemical property is measurable when the substance goes through a chemical reaction.

Explanation:

Determine the grams of sodium chloride produced when 10 g of sodium react with 10 grams chlorine gas according to the equation 2Na + Cl2 = 2 NaCl

Answers

Answer:

16 g

Explanation:

Step 1: Write the balanced equation

2 Na + Cl₂ ⇒ 2 NaCl

Step 2: Identify the limiting reactant

The theoretical mass ratio (TMR) of Na to Cl₂ is 46:71 = 0.65:1.

The experimental mass ratio (EMR) of Na to Cl₂ is 10:10 = 1:1.

Since EMR > TMR, Cl₂ is the limiting reactant

Step 3: Calculate the mass of NaCl produced

The theoretical mass ratio of Cl₂ to NaCl is 71:117.

10 g Cl₂ × 117 g NaCl/71 g Cl₂ = 16 g NaCl

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Answers

******************* ijustwantthepoints *************************

why is unit of pressure called a derived unit ?? 2) how do you measure the volume of milk?

Answers

1. Unit of pressure called a derived unit because it is a combination of base units (kg·m^-1·s^·2).

2. We measure the volume of milk by a instrument called Milk Lactometer.

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