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
Dmitrij [34]
3 years ago
12

1. A piece of pure gold (Au) has a volume of 50 cmWhat is its mass?

Biology
1 answer:
krok68 [10]3 years ago
7 0

Answer:

96.5g

Explanation:

Given parameters:

Volume of Au = 50cm³

Density of Au = 19.3 g/cm³

Unknown:

Mass of the  gold  = ?

Solution:

Density is the mass per unit volume of a compound.

 Density  = \frac{mass}{volume}

 Mass  = density x volume

Insert the parameters and solve;

   Mass  = 19.3 g/cm³ x 50cm³  = 96.5g

You might be interested in
scientists are studying two populations of the same species of sea turtle. one population is quite small with only 18 individual
Sati [7]
In the population with a large number of individuals, the mutation would only have a small impact, while a population with only 18 individuals would result in a very large i off as the mutation would be in a greater percentage of the population.
7 0
4 years ago
Read 2 more answers
When cells communicate by the signaling process, one cell produces a _________________BLANK that must be received by the _______
velikii [3]

Answer:

1. Signaling molecule

2. Signaling receptors

Explanation:

Hormones, growth factors, neurotransmitters, etc. serve the function of signaling molecules for cells. These molecules are released by one cell and bind to the receptors present on/in the target cells to elicit the desired response. Thereby, the signaling molecules serve in cell-cell communication.

For example, insulin hormone synthesized and released from beta cells of pancreas binds to its cell surface receptors present on the surfaces of liver cells and muscle cells to stimulate the uptake of the glucose from the blood.  

Likewise, neurotransmitters released from the presynaptic neuron bind to receptors present on the membrane of postsynaptic neuron and serve to carry the nerve impulse to the postsynaptic neuron.  

8 0
3 years ago
Monosaccharides can be grouped as aldehydes and kefone groups,what is their difference and similarities and list four examples f
Lady bird [3.3K]

Answer:

Aldehyde has C=O bonded to atleast one H atom while Ketone has C=O bonded to two carbon atoms

Aldehyde - galactose, glucose, glyceraldehyde, fructose

Ketone - Trioses, Tetroses, Pentoses, Hexoses

Explanation:

Similarity

Both the aldehyde and ketone have C=O group

Difference

In aldehye the C=O group require atleast one hydrogen atom or the functional group in aldehyde is -CHO

while in ketone the function group is C=O only that is bonded to two carbon atoms.

Example

Aldehyde - galactose, glucose, glyceraldehyde, fructose

Ketone - Trioses, Tetroses, Pentoses, Hexoses

6 0
3 years ago
A polymer is...
Sophie [7]

Answer:

a polymer is a large unit comprised of monomer

6 0
4 years ago
Read 2 more answers
Why is the greatest reservoir of carbon in the deep ocean?
sasho [114]

Answer:

It takes up carbon through physical and biological processes at the ocean surface, carbon dioxide from the atmosphere dessolves in the water

5 0
2 years ago
Other questions:
  • What is an Eukaryote? Please help. 25 points for this
    7·2 answers
  • The type of reproductive barrier that occurs when two species mate but produce sterile hybrids is referred to as _______________
    9·1 answer
  • Describe the motion of the continents from the cambrian period through the quaternary period
    5·2 answers
  • The diagram shows a model of an atom. Who first proposed this model? O A. Thomson O B. Bohr O C. Rutherford D. Dalton ​
    13·1 answer
  • A biochemist isolates and purifies various molecules needed for DNA replication. When she adds these molecules to DNA, replicati
    6·1 answer
  • GUYS PLS HELP!!!!Thank u
    6·2 answers
  • If you don’t provide brands of items used in a method how can that effect the results you collect and why.
    14·1 answer
  • Which of the following describes movement of molecules into a cell through active transport?
    11·1 answer
  • Forces that cause tectonic plates to movement can cause rock melt and escape earth's
    15·1 answer
  • Imagine you are creating a scatter plot to show the relationship between air temperature and electricity usage. As air temperatu
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!