What is the density of an object that has a mass of 6.82g and when placed in water displaces the volume from 1.67mL to 7.87mL? Record your answer to the hundreds place.

Answers

Answer 1

Answer:

1.10 g/mL

Explanation:

The amount of volume an object displaces is the amount of volume that object takes up.

7.87 - 1.67 = 6.2

The object has a volume of 6.2 mL.

You have the mass (6.82 g) and the volume (6.2 mL).  Divide the two value to find the density.

(6.82 g)/(6.2 mL) = 1.10 g/mL

The density of the object is 1.10 g/mL.


Related Questions

What is callibration of temperature

Answers

ouch that hurts

What is Temperature Calibration? Temperature calibration refers to the calibration of any device used in a system that measures temperature. Most importantly, this usually means the temperature sensor, itself, which is typically a platinum resistance thermometer (PRT or PT-100), thermistor, or thermocouple.

Each of the following is a noncovalent interaction EXCEPT ________. a) Hydrogen bond b) Carbon-hydrogen bond c) Van der Waals d) Interaction Dipole-dipole

Answers

Answer:

CARBON-HYDROGEN BOND

Explanation:

The non-covalent interactions in the options are the hydrogen bond, the Van der Waal's bond, the dipole-dipole interaction. The odd one out of the options is the carbon - hydrogen bond.

The carbon-hydrogen bond is a covalent bond involving carbon and hydrogen atoms in which carbon shares its outer valence electrons with up to four hydrogen atoms either forming a complete shell with single bonds or complete shells with double or triple bonds. The type of bonding is found in hydrocarbons and other organic compounds. For example the alkanes, alkenes, alkynes and aromatic hydrocarbons.

The non- covalent bonds are the bonds that bind macro-molecules and do not involve the sharing of pairs of electrons. They are much more weaker than covalent bonds and are very important in the formation of proteins and nucleic acids. This type of bonding includes the electrostatic interactions, hydrogen bonds, hydrophobic bonds, Van der Waal's interactions. The different types of the non-covalent bonds differ in geometry, strength and specificity.

So therefore, carbon-hydrogen bond is the odd one of the non-covalent interactions listed in the options.

what will happen reaction of rubidium with water 

Answers

Answer:

reaction of rubidium with water

Explanation:

rubidium metals react very rapidly with water to form a colourless solution of rubidium hydroxide ( RbOH) and hydrogen gas H2

Which of the following has a crystalline structure?

Answers

Answer:A copper-gold alloy has a crystalline structure

Explanation:

The answer of the question is a

both questions pls !!

Answers

Answer:

b and C

Explanation:

why is a graduated cylinder most appropriate for measuring the volume of a liquid instead of a beaker ?

Answers

Answer:

Graduated cylinders are designed for accurate measurements of liquids with a much smaller error than beakers. They are thinner than a beaker, have many more graduation marks, and are designed to be within 0.5-1% error. ... Therefore, this more precise relative of the beaker is just as critical to almost every laboratory.

Explanation:

hope this helped!

.Put 8.4 x 10^-6 into standard notation.

Answers

Answer:

.0000084

Explanation:

Name the processes of making of salts???

Answers

Answer:

Table salt is made up of two elements

Sodium and Chlorine

Explanation:

[tex]Na + Cl_2 - > NaCl[/tex]

How Rock salt is gotten

: As the brine boils in the first effect, water evaporates producing further steam and causing salt crystals to grow. As the brine boils and the water starts to evaporate, a thick salt slurry of brine and salt crystals is formed.

Explanation:

[tex]\huge\underline\bold\blue{ƛƝƧƜЄƦ}[/tex]

crystalisation

Hope it helps

How are thermal energy and mass related?

Answers

Answer:

s

Explanation:

s

Answer:

Both reflect the kinetic energy of moving particles of matter. However, temperature is the average kinetic energy of particles of matter, whereas thermal energy is the total kinetic energy of particles of matter. ... Another factor also affects thermal energy. The other factor is mass

Explanation:

Claim: If I brush my teeth everyday, then I won't get cavities.
In this statement, the dependent variable is
I

Answers

the dependent variable is i won’t get cavities

Answer:

I wont get cavities it the dependent variable

Explanation:

When a strip of magnesium metal is touched to a flame, a bright light and a whitish substance are produced. Why is the burning of magnesium considered a chemical change? because the metal reaches a high temperature because the metal begins to melt because a new substance is formed because the metal is malleable

Answers

Answer:C

Explanation: on Edge

Answer: letter c is the answer

Explanation:

is saliva a element compound or mixture

Answers

Answer:

mixture

Explanation:

Answer:

mixture

Explanation:

10. How does a heterogeneous mixture differ from a homogeneous mixture? How are they similar?

Answers

A homogeneous mixture is a solid, liquid or gaseous mixture that has the same proportions of its components throughout any given sample & a heterogeneous mixture has components in which proportions vary throughout the sample. They are both similar because they’re often referred to as solutions

How to solve for enthalpy for changes​

Answers

always use this method !!! always

Which of the following equations can be used to solve volume of a solution using
molarity equation?

Answers

Answer:Molarity can be used to calculate the volume of solvent or the amount of solute. The relationship between two solutions with the same amount of moles of solute can be represented by the formula c1V1 = c2V2, where c is concentration and V is volume.

Explanation: c1V1 = c2V2

The equation that can be used to solve the volume of a solution using the molarity equation is:

Molarity (M) = moles of solute (mol) / volume of solution (L)

This equation can be rearranged to solve for the volume of solution:

Volume of solution (L) = moles of solute (mol) / Molarity (M)

By knowing the molarity of the solution and the number of moles of solute, you can substitute these values into the equation to calculate the volume of the solution.

It's important to note that this equation assumes the molarity is given in units of moles per liter (mol/L). If the molarity is given in a different unit, it may need to be converted before using the equation.

Know more about molarity:

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Your question is incomplete, but most probably your full question was.



Which of the following equations can be used to solve volume of a solution using molarity equation?

Volume moles ÷ molarity

Volume-moles + molarity

Volume moles + molarity

Volume = moles x molarity

Calculate the average atomic mass of boron (B), which has two isotopes: B-10 with 19.9% natural abundance, and B-11 with 80.1% abundance. Average atomic mass of boron = (f1)(M1) + (f2)(M2) Question 13 options: 12.1 amu 10.8 amu 9.2 amu 3.3 amu

Answers

Answer:

The average atomic mass of boron is found to be  

10.80

Explanation:

also u answered it urself

Relative and average atomic mass both describe properties of an element related to its different isotopes. Out of these two Relative atomic mas is more accurate. Therefore, the average atomic mass of boron is 10.80amu. The correct option is option B.

What is mass?

Mass defines the quantity of a substance. It is measured in gram or kilogram. Average mass is the mass of atoms of an element that are isotopes. It can be calculated by multiplying mass of a isotope to natural abundance of that isotope.

Average atomic mass = (mass of first isotope× percent abundance of first isotope)+(mass of second isotope× percent abundance of second isotope)

Substituting the given values

Average atomic mass=( 10 amu ×  19.9%)+(11 amu × 80.1%)

Average atomic mass=10.80amu

Therefore, the average atomic mass of boron is 10.80amu. The correct option is option B.

To learn more about mass, here:

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I need to do this but i really don’t know what to write about so can everyone help me and just put something nice i should put

Answers

Answer:

Just say you expect all the help you need.

Explanation:

Say that you expect to get as much help as you can and that you expect to he welcomed and loved

Describe the many different forms of energy involved with stretching and releasing a rubber band. What other processes are similar to this model?

Answers

Answer:

Conversion of kinetic energy to potential energy (chemo mechanical energy)

In the state of rest, the rubber is a tangled mass of long chained cross-linked polymer that due to their disorderliness are in a state of increased entropy. By pulling on the polymer, the applied kinetic energy stretches the polymer into straight chains, giving them order and reducing their entropy. The stretched rubber then has energy stored in the form of chemo mechanical energy which is a form of potential energy

Conversion of the stored potential energy in the stretched to kinetic energy

By remaining in a stretched condition, the rubber is in a state of high potential energy, when the force holding the rubber in place is removed, due to the laws of thermodynamics, the polymers in the rubber curls back to their state of "random" tangled mass releasing the stored potential energy in the process and doing work such as moving items placed in the rubber's path of motion such as an object that has weight, w then takes up the kinetic energy 1/2×m×v² which can can result in the flight of the object.

Explanation:

Answer:

Elastic potential energy------> kinetic energy --------> elastic potential energy

Explanation:

Elastic potential energy is the energy stored in a spiral spring. When a rubber band is stretched, this elastic potential energy is capable of doing work. This energy is just stored inside the rubber band and released when work is done by the rubber band.

Once the rubber band is released and it is in motion, the energy of the rubber is kinetic energy.

The system is similar to a simple pendulum.

An ecosystem describes a specific area where the organisms _____ _____ as a unit

Answers

Answer:

Live Together

Explanation:

5. Both kerosene and water are liquids at room temperature. Describe a procedure that can be used
to separate a mixture of the two liquids. ​

Answers

I found this. hope it helps!

1. Form a hypothesis: As altitude increases, the air pressure decreases. How do you think the lower pressure will affect the following? (Circle your answers.) A. Freezing point: Increase, Stay the same or Decrease B. Melting point Increase Stay the same Decrease C. Boiling point: Increase Stay the same Decrease​

Answers

Answer:

A. Freezing point: Increase.

B. Melting point: Decrease

C. Boiling point:  Decrease​

Explanation:

As we go up in higher altitudes the air becomes on and less dense, hence the decrease in the water vapor content at such altitude leads to a decrease of boiling point. Thus the air above is cool and much colder than at the ground surface. The vapor pressure is temperature-dependent and thus melting point will also decrease.

Answer:

A increase

B decrease

C decrease

Explanation:

differentiate between melting point and boiling point​

Answers

Answer:

The main difference between boiling point and melting point is that the melting point is defined as the temperature at which solid and liquid phases are in equilibrium, whereas the boiling point is the temperature at which the vapour pressure of a liquid is equal to the external pressure

The Gateway Arch in St. Louis, MO is approximately 630 ft tall. How many U.S. half dollars would be in a stack of the same height? Each half dollar is 2.15 mm thick.

Answers

Answer:

The number of half dollars in the stack of the height of the Gateway Arch in St. Louis is 89,313 half dollars

Explanation:

The given height of the Gateway Arch in St. Louis = 630 ft

The thickness of each half dollar = 2.15 mm

By conversion of factors, we have;

1 feet = 304.8 mm

Therefore;

630 ft. = 304.8 × 630 mm = 192,024 mm

The number of half dollars that will stack up to 630 ft or 192,024 mm, is therefore, given as follows;

The number, n, of half dollars in the stack of the height of the Gateway Arch in St. Louis = The height of the Gateway Arch in St. Louis/(The thickness of each half dollar)

n = 630 ft/(2.15 mm/(half dollar)) = 192,024 mm/(2.15 mm/(half dollar)) = 89,313.49 ≈ 89,313 half dollars

The number of half dollars in the stack of the height of the Gateway Arch in St. Louis = 89,313 half dollars.

Why water is a compound but air is a mixture?

Answers

Answer:

Explanation-

Water is a compound because it is formed from hydrogen and oxygen, which is irreversible, having different properties but air is a combination of different gases in any proportion.

3. All the water found on Earth's surface, below ground, and as a liquid in the
atmosphere makes up the
_________

Answers

Answer:

hydrosphere

Explanation:

The experimental group is the group that is left alone during the experiment

Answers

Answer:

The given statement is false.

Explanation:

A common method of experimentation that is used to collect data on hypotheses of end up causing-effect is a contrast between two groups. One community, the experimental group, is receiving medication for having any result. Some other group becomes left exposed, the control group, whether creating a different treatment.

is evaporation of water a physical change or a chemical change ?​

Answers

Answer:

Physical

Explanation:

Water is the chemical form of 2 hydrogen and 1 oxygen (H2O)

It is still H2O, as nothing made it chance that formula.

Which of the following equations best describes the energy at point
C, assuming energy is conserved?
O A. PEA= KEC
o B. PEA= KEc + PEC
C. PEg= KEC + PEC
O D. PEg = PEC

Answers

Answer:

The correct option is

B. PEA = KEC + PEC

Explanation:

The potential energy is the energy possessed due to position

From the image the point with the highest position and therefore the most potential energy and the lowest or zero kinetic energy is point A

Given that we have;

Total mechanical energy = The potential energy +  The kinetic energy

Where there is constant total mechanical energy in the system, then, at the point A where the kinetic energy is zero, the potential energy is equal to the total mechanical of the system, we have;

Total mechanical energy = The potential energy at A = PEA

Total mechanical energy = PEA

At point C where we have the total mechanical energy presented as follows;

Total mechanical energy = Kinetic energy at C + Potential energy at C

Total mechanical energy = KEC + PEC

Therefore;

PEA = KEC + PEC.

What are the parts of this water wheel system?Label the water wheel to show the matter and forms of energy that flow through the system?

Answers

Answer:

Water, wheel and paddles or bucket are the parts and mechanical energy is produced.

Explanation:

The parts of water wheel system are water, wheel and paddles or bucket. The main purpose of water wheel system is to generate useful energy by using the flowing or falling of water on the wheel. We use this water wheel system for the conversion of kinetic energy into mechanical energy such as water mill or hydroelectric plant in which the blades movement is responsible for the generation of electricity.

Question 7
(01.03 LC)
Which of the following happens to a molecule of an object when the object is cooled?
a) Its temperature increases,

b) It loses kinetic energy.

c) Its size increases.

d) It moves faster.

Answers

Answer:

D

Explanation:

Answer:

D

Explanation:

:)

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