Calculate the density of a material that has a mass of 52.457 g and a volume of 13.5 cm3.

Answers

Answer 1

Answer:

3.8857037037g per cm3

Explanation:

52.357g/13.5 cm3 = 3.8857037037

Round if needed


Related Questions

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

Answers

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.

Learn more about body mass index,here:

https://brainly.com/question/10694067

#SPJ2

Correct any mistakes in the electron configurations below.

Answers

Answer:

E.) 1s^22s^22p^23s^4p^4

Explanation:

Answer:

See explanation.

Explanation:

D. 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d8;

Explanation: before filling 3d orbitals, 4s needs to be filled. Since s holds 2 electrons, take two from the 3d10.

E. 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p3;

Explanation: after the 4s orbital, the 3d orbitals need to be filled. You do not fill the 4d orbitals until the 5s orbital is filled.

Here is a quick review of the order orbitals need to be filled in:

1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p;

s holds 2 electrons; p holds 6 electrons; d holds 10 electrons; f holds 14 electrons.

What is the mass number of hydrogen? DUE TODAY!!!!

Answers

1.00784 u ... it’s on google

what method of cleaning tools and equipment do you follow or apply?​

Answers

I clean with a rag wdym

Get Brainiest if correct
The Moon doesn’t actually change ________, but it appears to from Earth because the part lit by the Sun changes as it travels around Earth.

Answers

Answer:

Shape?

Explanation:

that's the only thing that would make sense

Answer:

Shape  

is the answer

What is the mass of a hydrogen atom?​

Answers

Answer:

1.00784 u

Explanation:

Answer:

1.00784 u

Explanation:

hydrogen atomm

How many molecules in a mole?​

Answers

Answer:

One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro's number or Avogadro's constant.

Explanation:

hope this helped!

According to kineric molecular theory which statement descrives the particles in a sample of an ideal gas

Answers

Answer:

According to the kinetic molecular theory, which statement describes the particles in a sample of an ideal gas? The motion of the gas particles is random and in a straight-line.

Explanation:

The density of water is 1g/cm3. What might be the density of an object that floats in water

Answers

Answer:

The mass of water is known to be 1 g/mL or 1 g/cm3. If an object has a density greater than 1 g/cm3, it is denser than water and will sink. If it has a density of less than 1 g/cm3, it will float. For example, a penny is made out of zinc (7.14 g/cm3) and copper (8.96 g/cm3) so it sinks in water.

Explanation:

186000 written in scientific notation

Answers

Answer:

its 1.86 x 105

Explanation:

i learned it last year

Answer:

1.86 x 10^5

plz, mark brainliest

What human activity constitutes to air pollution?

A) construction

B) reforestation

C)habitats restoration

D)dam development

Answers

Answer:

The answer is A. Construction. The production of raw materials for construction in factories is harmful for the environment due to CO2 emissions. The chemicals used in construction and the diesel used by construction vehicles are also harmful to the environment.

Explanation:

In an ecosystem , human activity which constitutes to air pollution is construction.

What is an ecosystem?

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the ecosystem through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.There are different types of ecosystems.

Learn more about ecosystem,here:

https://brainly.com/question/19267717

#SPJ6

Calculate the energy of a light having a wavelength of 6.80 x 102 nm.

Answers

Answer:

Energy, [tex]E=2.92\times 10^{-19}\ J[/tex]

Explanation:

Given that,

The wavelength of a light is [tex]6.8\times 10^2\ nm[/tex]

We need to find the energy of light. The formula for the energy of light is given by :

[tex]E=\dfrac{hc}{\lambda}\\\\E=\dfrac{6.63\times 10^{-34}\times 3\times 10^8}{6.8\times 10^2\times 10^{-9}}\\\\E=2.92\times 10^{-19}\ J[/tex]

So, the energy of a light is [tex]2.92\times 10^{-19}\ J[/tex].

Can someone explain cellular respiration?

Answers

Answer:

Explanation:

set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules[1

The layer of the Earth called the mantle is often described as convecting. In this context, convection is

Answers

Answer:

the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.

Explanation:

Please help lots of points!!! Net ionic equation for aqueous solutions of perchloric acid and barium hydroxide.

Answers

Answer:

H⁺(aq) + OH⁻(aq) = H₂O(l)

Explanation:

To find the net ionic equation start by finding the balanced equation.

2HClO₄(aq) + Ba(OH)₂(aq) ⇒ 2H₂O(l) + Ba(ClO₄)₂(aq)

Then put it into the ionic equation.

2H⁺(aq) + 2ClO₄(aq) + Ba²⁺(aq) + 2OH⁻(aq) ⇒ 2H₂O(l) + Ba²⁺(aq) + 2ClO₄(aq)

Remove all the ions that do not change.

2H⁺(aq) + 2OH⁻(aq) ⇒ 2H₂O(l)

And reduce to the lowest common coefficient.

H⁺(aq) + OH⁻(aq) = H₂O(l)

If I use warm water on my plants then they will grow faster as hot water increases metabolism." This is an example of

Question 1 options:

a hypothesis


a theory


a research question


a scientific explanation

Answers

Answer:

a hypothesis

Explanation:

A hypothesis is a statement that is supposed or assumed before conducting any experiment. It is the assumption that is made on the basis of certain knowledge and controlled evidence in the initial time of the experiment. The initial assumption helps in taking the experiment or the investigation further. The truth is not ascertained in the initial phase rather the completion of the investigation is necessary to make a hypothesis turn into a theory.  

In the given situation, the statement given is a hypothesis because the use of the warm water for the growth of the plants is the assumption made with respect to the metabolism effect on the humans.

What percent of the universe's age is the first 400,000 years?

Answers

Answer:

the globuler cluster

Explanation:

hope this helps maybe next time show anwsers

Put the following in order of decreasing electronegativity:

Oxygen-
Fluorine-
Carbon-
Lithium-
Beryllium-

Answers

Answer:

Carbon < Lithium < Beryllium < Oxygen < Fluorine

Explanation:

What are the main characteristics for the definition of work?

Answers

Answer:

1-There Must be some displacement in the direction of force.                                                  2-Angle between force and displacement is 0°.                                                                            

HURRY!!

In models of molecules, gray spheres are carbon atoms,
white spheres are hydrogen atoms, red spheres are oxygen
atoms, and blue spheres are nitrogen atoms.
Which model represents a molecule of ammonia, NH3 ?

Answers

In model of molecules, gray spheres are carbon atoms, white spheres are hydrogen atoms , red spheres are oxygen atoms and blue spheres are nitrogen atoms. the model represent a molecule of NH₃ is model (A) that contains one blue sphere and 3 white sphere.

Ammonia (NH₃ ) is formed  with three atoms of hydrogen and one atom of nitrogen. In the molecule of NH₃ , three hydrogen atoms each shares their electron with nitrogen and form the covalent bond and molecule is formed NH₃ . in the given model (A) 3 white spheres of hydrogen are covalently bonded with one blue sphere of nitrogen.

Thus, In model of molecules, gray spheres are carbon atoms, white spheres are hydrogen atoms , red spheres are oxygen atoms and blue spheres are nitrogen atoms. the model represent a molecule of NH₃ is model (A) that contains one blue sphere and 3 white sphere.

To learn more about ammonia here

https://brainly.com/question/13838692

#SPJ1

Are corals minerals? Why?

Answers

Answer:

yes they are minerals becomes they contain components that have things minerals contians.

Explanation:

Compare and Contrast Iced Tea, Salad Dressing

Answers

Answer:

dressing is for salad and tea is a drink but the are both liquids and brown

Theories are built upon testing many ________?
A).laws.
B).Hypothese.
C).Facts.​

Answers

Answer:

B. Hypothese

Explanation:

Answer:

B.Hypothese

Explanation:

i don't know but that's first came in my mind

HELP PLEASE! There is a water-filled continental rift in Iceland. What type of plate boundary would cause this rift? *
A. convergent
B. divergent
C. transform

Lithospheric plates move because of the movement of the ___________________________ under them.
A. lower mantle
B. asthenosphere
C. outer core
D. inner core

Answers

1.A- convergent
2.A- lower mantle

Good Luck!!

Answer:

B. Divergent

The rift formed in the Divegent tectonic boundary between the North America and Eurasian Plates and is located now in Iceland (Im sorry im not good at explaining)

when a sample of CO2(s) becomes CO2(g), there is a change is

Answers

Explanation:

hope it helps you please make me brainlest (it's a photo)

HELP ME ASAP PLEASE BIG POINTs ​

Answers

Answer:

1.cation

2.anion

Explanation:

the plus is always cation and the negative is anion

Answer:

1. cation

2. anion

Explanation:

A positive ion is always cation and the negative ion is anion

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

Answers

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.

what role do particles play in exterting pressure?

Answers

Answer:

Pressure is an important physical quantity—it plays an essential role in topics ranging from thermodynamics to solid and fluid mechanics. As a scalar physical quantity (having magnitude but no direction), pressure is defined as the force per unit area applied perpendicular to the surface to which it is applied. Pressure can be expressed in a number of units depending on the context of use.

Explanation:

Probably not the best answer but hope this helps somewhat. :)

Which property is the least reliable method for identifying a mineral
A. color
B. luster
C. streak
D. cleavage

Answers

Answer:

I think it is a color but I'm not completely sure

Answer:

Color

Explanation:

aluminium oxide has a very high melting point (2072 degrees C) while carbon dioxide has a very low boiling point (-57 degrees C). Explain this difference clearly.
Please help I don’t get what it’s asking!!!

Answers

Answer:

Well, Aluminum Oxide has a very high melting point. Carbon dioxide has a very low boiling point.

Explanation:

They are both talking about different things, melting and boiling. Aluminum Oxide's melting point is much higher then carbon dioxide's melting point. Hope this help, and good luck on your assignment (if one)

Other Questions
hi please can you answerrr2x + x + 15 = 0 HELP ME PLEASEE ILL GIVE POINTS cuento en el fondo del cao hay un negrito preguntas y respuestas The reality that stress increases your sensitivity to faint pain stimuli is important to a student's understanding of signal detection theory place theory frequency theory opponent process theory placebo theory Solve the inequality: -2x>-6 What is 3/5 written as a percent? A. 6% B. 30% C. 60% D. 167% Which of the following economic opportunities led to the creation of Boom Towns?0 RanchingFactory WorkFarmingMining3Previous4 The first known bird fossils date to which era of time. QuestionsVoici la mre de mon demi-frre. C'est ma .Voici le mari de ma grand-mre. C'est mon .Voici la fille de ma sur. C'est ma .Voici l'oncle de ma cousine. C'est mon .Voici ma grand-mre. C'est la de ma tante.Voici mon . C'est le fils de ma fille.Voici la petite-fille de mon grand-pre, mais ce n'est pas ma sur. C'est ma .Voici mon . C'est le mari de ma sur. A box of chocolates contained 8% caramels. There were 4 caramels in the box. How many pieces of chocolate are in the box? How do fats and phospholipids differ? Fats composed parts of cell membranes and phospholipids do not. Phospholipids store more energy than fats. Fats and phospholipids have different numbers of fatty acid tails. Fats are hydrophilic and phospholipids are hydrophobic. What are the three components of the FITT acronym associated with overload and progression?A.frequency, intensity, and typeB.time, frequency, and intensityC.fitness, intensity, and timeD.type, intensity, and fitness Einstein once developed the formula, E = mc2, to describe the theory of relativity, where E is the total energy in the system, m is the total mass, and c2 is the speed of light. If the equation was to be rearranged in order to solve for the total mass, which formula below should be used?A - m = E/c2B - m = E c2C - m = Ec2D - m = E + c2 Which of the FITT principles discuss the effort level of the exercise?A. FrequencyB. IntensityC. TimeD. Type How many atoms of each element are in 4Na3PO4? Escribe. What did you learn in the foronovela? Write the names of the followingpeople.Modelo La amiga de Tess - Marisa1. la quinceaera2. el amigo de Elena3. la madre de Elena4los hermanos de la quinceaera Describe one example of an energy transformation in this diagram and explain why it is a transformation. Repeat this description and explanation for an energy transfer. The scale of a map is 1 cm : 7 miles find each distance.A road is 4 cm long on the map. find the actual length of the road. 3f(-4)-3g(-2)=?Help please Someone, please help me out here. P.S if you don't know the answer to this question don't comment at all because it's not very useful to me or anyone who needs help. Plus it just adds a warning to your account which may or may not get you banned.