1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zalisa [80]
4 years ago
7

Object A has a mass of 12g and a volume of 8cm3. object B has a mass of 20g and a volume of 8cm3 . which object has a greater de

nsity and by how much
Chemistry
1 answer:
Charra [1.4K]4 years ago
3 0

Answer:

Object B has a density of 2.5 g/cm³ which is greater than object A by 1 g/cm³

Explanation:

Since we know that the formula for density is d=m/v, we can divide each mass by its corresponding volume to find the densities

12/8=1.5

20/8=2.5

So we know that object B has a greater density than object A by 1 g/cm³ (gram per cubic centimeter). Also the standard unit for density is kilograms per cubic meter but I used gram per cubic centimeter since they were the given units. 1cm=100m, 1000g=1km

You might be interested in
What state of matter is Polaris, the north star?
Anni [7]

The state of matter of Polaris, the north star is gas.

<h3>What are stars made of?</h3>

Stars are made up of a mixture of hot gases.

The mixture consists of helium and hydrogen. Hydrogen burns into helium to give starts a shining appearance when observed from a far distance.

Thus, the state of matter of all stars, including the north star, is gas.

More on stars can be found here: brainly.com/question/21521087

#SPJ1

8 0
2 years ago
What are the four bases found in DNA molecule???? Please send helppppp​
alukav5142 [94]

Answer:

DNA consists of molecules called nucleotides. Each nucleotide comprises a group of phosphates, a group of sugars and a base of nitrogen. The four forms of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The sequence of these bases defines the DNA instructions or genetic code.

4 0
3 years ago
What occurs when materials drop out of wind or water?
pantera1 [17]
Erosion weathering decomposition one of those
7 0
3 years ago
Explain the difference between ecosystem, community, and population.
Studentka2010 [4]

Out of the three you gave ecosystem is what I would call the most broad. An ecosystem includes living AND non-living things in an area

Community is all the LIVING things in an area (plants are included and I think bacteria is too, but I'm not sure)

Population is pretty narrow it just looks at specific species in one area. Population of mosquitoes doesn't include butterflies, if only looks at mosquitoes

Hope this helped!

4 0
3 years ago
How can scientists know what happened millions of years ago if no one was there to see it?​
xxMikexx [17]

Answer:

In the 150 years since Darwin proposed the theory of evolution by natural selection, a mountain of evidence has accumulated ... How can you know what happened millions of years ago if no one was there to see it? Evidence and observation are the building blocks of all scientific inquiry; evolutionary science is no different

Explanation:

4 0
3 years ago
Other questions:
  • Which of the following solutions would have the lowest freezing point? 1.0 nacl 3.0 nacl 2.0 nacl or 5.0 nacl
    8·2 answers
  • Which formula is an empirical formula?
    15·2 answers
  • Which statement is true about the substances in a mixture?
    6·2 answers
  • Think critically explain how biotic change in an ecosystem that has flooded?
    15·1 answer
  • 3) A saturated solution of PbCl2 in water was prepared and filtered. From the filtrate (solution collected after filtration), 50
    15·1 answer
  • Write the balcanced molecular and net ionic equation for the acid-base reaction:
    8·1 answer
  • Solid solutions where one metal is dissolved in another is known as a(n) _____________.
    9·1 answer
  • PH Range of 7.1-14<br> Is that acid or a base?
    8·1 answer
  • Density (D) is defined as the ratio of mass (m) to volume (V) and can be determined from the expression D = . Find the density o
    15·1 answer
  • The number of electrons in a neutral atom is equal to the number of protons? True or false
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!