Answer: the data are inadequate .
Explanation:
It is MOST accurate to say that body mass index (BMI) provides information about __________.
A.
body composition
B.
an individual's height-weight ratio
C.
cardiorespiratory fitness levels
D.
an individual's height
It is most accurate to say that body mass index (BMI) provides information about an individual's height-weight ratio.
What is body mass index?
BMI takes into account natural variations in body shape, giving a healthy weight range for a particular height.
As well as measuring your BMI, healthcare professionals may take other factors into account when assessing if you're a healthy weight individual.
Muscle is much denser than fat, so very muscular people, such as heavyweight boxers, weight trainers and athletes, may be a healthy weight even though their BMI is classed as obese.
Your ethnic group can also affect your risk of some health conditions. For example, adults of South Asian origin may have a higher risk of some health problems, such as diabetes, with a BMI of 23, which is usually considered healthy.
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Based on the three formulas shown, use one of them to solve for the purple yellow and red box and explain how you did it.
P = 11.133 atm (purple)
T = -236.733 °C(yellow)
n = 0.174 mol(red)
Further explanationSome of the laws regarding gas, can apply to ideal gas (volume expansion does not occur when the gas is heated),:
Boyle's law at constant T, P = 1 / V Charles's law, at constant P, V = T Avogadro's law, at constant P and T, V = nSo that the three laws can be combined into a single gas equation, the ideal gas equation
In general, the gas equation can be written
[tex]\large {\boxed {\bold {PV = nRT}}}[/tex]
where
P = pressure, atm
V = volume, liter
n = number of moles
R = gas constant = 0.08206 L.atm / mol K
T = temperature, Kelvin
To choose the formula used, we refer to the data provided
Because the data provided are temperature, pressure, volume and moles, than we use the formula PV = nRT
Purple box
T= 10 +273.15 = 373.15 K
V=5.5 L
n=2 mol
[tex]\tt P=\dfrac{nRT}{V}\\\\P=\dfrac{2\times 0.08205\times 373.15}{5.5}\\\\P=11.133~atm[/tex]
Yellow boxV=8.3 L
P=1.8 atm
n=5 mol
[tex]\tt T=\dfrac{PV}{nR}\\\\T=\dfrac{1.8\times 8.3}{5\times 0.08205}\\\\T=36.42~K=-236.733^oC[/tex]
Red boxT = 12 + 273.15 = 285.15 K
V=3.4 L
P=1.2 atm
[tex]\tt n=\dfrac{PV}{RT}\\\\n=\dfrac{1.2\times 3.4}{0.08205\times 285.15}\\\\n=0.174~mol[/tex]
When an extended structure is dissolved in water, it releases potassium (K) and chlorine (Cl) atoms in the
water
Which statement correctly describes the nature of this substance?
A.It is made of K and Cl atoms.
B.It is made of K molecules and Cl atoms.
C.It is made of K atoms and Cl molecules.
D.It is made of KCl molecules
Answer:
A.It is made of K and Cl atoms.
Explanation:
An atom is the smallest indivisible unit of an element while a molecule is the smallest particle of an element/compound that retains its chemical properties. However, the molecule is two or more atoms held together by means of a chemical bond e.g. Cl2 molecule consists of two atoms of Chlorine.
Hence, if an extended structure dissolves in water to release pottasium (K) and Chlorine (Cl) atoms, it means it is made up of K and Cl atoms. This is because the substance will dissociate l, in the presence of water, into it's simplest form which is the atomic level.
What properties of matter are the same for that substance no matter how much there is?
Answer:
physical properties
Explanation:
Intensive properties: A physical property that will be the same regardless of the amount of matter.
density: ρ=mv
color: The pigment or shade
conductivity: electricity to flow through the substance
malleability: if a substance can be flattened
luster: how shiny the substance looks
if the density of a bar of gold is 19.3g/cm^3and you cut it into four pieces , what is its density of each piece of gold
Considering the definition of density and intensive and extensive properties, the density of each piece of gold is 19.3 [tex]\frac{g}{cm^{3} }[/tex]
Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space. In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance.
Intensive properties are those that will remain unchanged even though the amount of matter varies, while extensive properties vary depending on the amount of matter in a body.
Density is an intensive property, so it is independent of the sample size. This is because the solute will be present in a certain proportion with respect to the solvent. That ratio will not change unless more solute or more solvent is added. Consequently, the concentration remains constant (concentration is an intensive property) and density too.
Finally, the density of each piece of gold is 19.3 [tex]\frac{g}{cm^{3} }[/tex]
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In science class, Blaine’s teacher puts one glow stick in a cup of hot water and another glow stick in a cup of cold water. She asks the students to think about how the temperature of the water will affect the chemical reaction that occurs inside the glow stick once it is bent and starts to glow.
Which glow stick will be brighter once it is bent? Explain your answer.
Answer:
The glow stick in hot water will be brighter
Explanation:
The glow stick in hot water will be brighter than the glow stick in cold water because the heat from the hot water will cause the molecules in the glow stick to move faster. The faster the molecules move in the glow stick, the sooner and brighter the reaction will be. The cold water will cause molecules to move slowly and it will take longer for the reaction to occur, which will also make it less bright.
Answer:
The glow stick that was in the cup of hot water will be brighter once it is bent. The production of more light is evidence that the chemical reaction in the glow stick is happening faster. The reaction happens faster, because increasing the temperature increases the rate of a chemical reaction.
Explanation:
Just took assignment
Which of the following types of soil has the greatest permeability?
A. Loam
B. Sandy
C. Clay
D. Silty
Answer:
Sandy soil
Explanation:
Sandy soil has the greatest permeability of all soil types. It has a high amount of pore space and grain size.
Permeability is the ability of fluids to pass between the grains of a substance, here soil. It is usually a function of the size of the pore spaces and the grain size.
Sandy soils are usually made up of particles with sand-sized shapes and dimension. They have bigger and finer grains with little to no cement. This allows for a high level of permeability with no impediment to flow.Clay soil has very fine grain and with very low permeability. Silty soils have fair enough permeability and the permeability of loam straddles between that of sand and clay.Permeability is very important for determining the quality of soils.
I need help please answer
Where do the glucose molecules that our cells need come from?
Answer:
glucose molecules that our cells need from is plants
Is this a balanced chemical equation?
what is balance equation
Answer:
Balanced equations are those whose coefficients result in equal numbers of atoms for each element in the reactants and products.
Which is the jellylike substance within cells? plasma membrane DNA cytoplasm ribosomes
Answer:
Cytoplasm is the semi fluid gel like substance of a cell that is present within the cellular membranes and surrounds the nucleus.
Explanation:
Hope this helps :)
Answer:
cytoplasm is correct
Explanation:
i took the test
Which phase change requires more heat energy, Heat of fusion or Heat of
vaporization? Explain in terms of particle arrangements.
Answer:
heat of fusion
Explanation:
heat of fusion is melting which requires more heat energy than heat of vaporization
which phrase describes a gas?
Answer:
Gas is a state of matter where particles flow freely. It has no definite shape or volume.
Explanation:
help its due soon i need to get this right to pass the class
Answer:
the answer I am pretty sure is A
Explanation:
Because the way that a generator works is moving electric current around a wire and using magnets to make more energy. please tell me if I am wrong.
Answer: A
Explanation: Because the way that a generator works is moving electric current around a wire and using magnets to make more energy.
What is the correct electron configuration for the ion K+?
1s22s22p63s23p6
1s22s22p63s23p64s1
1s22s22p63s23p64s2
1s22s22p63s1
Answer:
1s22s22p63s23p6
Explanation:
The electronic configuration of K is 1s22s22p63s23p64s1.To form K+1 we remove electron. Thus the electrons configuration of K +1 is 1s22s22p63s23p6.
Hence answer is option A
how is plastic made?
Answer:
Cellulose, Coal, Natural Gas, Salt, and Crude Oil
How does the average reaction rate differ from an instantaneous reaction rate?
Answer:
The average rate is the change in concentration over a selected period of time. It depends on when you take the measurements. The instantaneous rate is the rate at a particular time.
Explanation:
When a candle burns it produced 41,300 Joules per 1 gram. Use dimensional analysis to convert this to Calories per pound.
1 cal = 4.184 J
16 ounces = 1 pound
1 ounce = 23.5 grams
1 Calorie= 1000 calories
Answer:
4477381.7 calories/pound
Explanation:
It is given that,
When a candle burns it produced 41,300 Joules per 1 gram.
We need to convert it into calories per pound.
We know that,
1 cal = 4.184 J
⇒ 1 J = (1/4.184) cal
1 pound = 453.592 grams
⇒1 g = (1/453.592) pounds
Now,
[tex]41300\ \text{Joules per gram}=\dfrac{41300\ \text{Joules}}{\text{gram}}\\\\=41300\times \dfrac{\dfrac{1}{4.184}\ \text{calories}}{\dfrac{1}{453.592}\ \text{gram}}\\\\=4477381.7\ \text{calories/pound}[/tex]
Hence, 41,300 Joules/gram = 4477381.7 calories/pound.
Define the law (Principle) of Uniformitarianism
Answer:
known as the Doctrine of Uniformity or the Uniformitarian Principle, is the assumption that the same natural laws and processes that operate in our present-day scientific observations have always operated in the universe in the past and apply everywhere in the universe.
Explanation:
Choose all the answers that apply.
What are the habits of mind that a scientist must possess?
creativity
skepticism
artistic ability
reasoning
bias
Answer:
Creativity
Skepticism
Reasoning
Explanation:
Scientists must see a creative way to solve problems in the world. Scientists must also be skeptic about what is said, because if they were not, no one would disagree and the problems would never be solved. Reasoning is a must, as reasoning is involved in the scientific process and writing conclusions to their studies.
Hope this help!
what is magnetism? please answer
Answer:
a physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.
:0
Explanation:
Answer:
Explanation:
Magnetism is the power to attract. It refers to the attraction to iron and other metals in electric currents and magnets, or to the other kind of attraction — where people want to be close to each other.
plz mark as brainliest
50 Points!! 25 Each Points Please Help ASAP!! View Attached Image!! Will Mark Brainliest If All Are Answered!!
Answer:
f
a
c
e
b
reactant
b
f
a
e
d
c
b
Explanation:
Calculate the following expression and round your answer to the correct number of significant figures.
52.6cm x 1.214cm
Answer:
63.9 cm
Explanation:
The Periodic Table is a chart of elements arranged in rows and columns according to their what
physical properties.
chemical properties.
name.
place of origin.
Find the volume of a gold ring that has a mass of 12.00 grams. The density of gold is 19.30 g/mL. The volume is
Answer:
The answer is 0.622 mLExplanation:
The volume of a substance when given the density and mass can be found by using the formula
[tex]volume = \frac{mass}{density} \\ [/tex]
From the question
mass = 12 g
density = 19.30 g/mL
We have
[tex]volume = \frac{12}{19.30} \\ = 0.62176165...[/tex]
We have the final answer as
0.622 mLHope this helps you
What is the chemical name for Se2CI
Answer: caesium oxide
Explanation:I think sorry if I’m wrong
Boat A and Boat B have the same mass. Boat A's velocity is three times greater than that of Boat B. Compared to the
kinetic energy of Boat B, the kinetic energy of Boat A is
O one-third as much.
3
O three times as much.
O six times as much.
O nine times as much.
Answer:nine times as much
Explanation:
Answer: 9x as much
Explanation:
For each compound, write the cation and anion with the appropriate charge. Then write the chemical formula for each compound.
Example: sodium fluoride: Na+1, F-1 NaF
a. Magnesium oxide
b. Strontium iodide
c. Aluminum chloride
d. Calcium phosphide
Answer:
Magnesium oxideStrontium iodideAluminum chlorideCalcium phosphide5% and NanO2 Cax[tex]x^{2}[/tex]
A car traveling at a constant speed of 75 miles/hr for 7.5 hours will go how far?
a
10 miles
562.5 miles
b
O.c
Od
751.5 miles
199 miles
Answer:
The answer is 562.5 milesExplanation:
The distance covered by an object given it's velocity and time taken can be found by using the formula
distance = velocity × time
From the question we have
distance = 75 × 7.5
We have the final answer as
562.5 milesHope this helps you
Mr. Stark thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to drink while they work. Group B is not given the special juice. After an hour, Mr. Stark counts how many stacks of papers each group has made. Group A made 1,587 stacks, Group B made 2,113 stacks.
Identify the independent variable and dependent variable
Identify the control group and experimental group
Explanation:
taking a special juice independent variable
the number of stuck of paper dependent variable
the control group is group B
experimental group is Group A
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