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
The difference between theory and law
Blababa [14]

In science, a theory is a hypothesis, and a law is a statement of a observed phenomenon proven to be true.

  • A theory explains why a natural phenomenon occurs.
  • Scientific laws summarize a set of observations about a natural phenomenon that was witnessed.
  • Both can be revised, used to make predictions, and are based off of a hypothesis.
6 0
3 years ago
What is made at the end of transcription?
Alina [70]
At the end of transcription it's either DNA or RNA try googling it
8 0
3 years ago
Read 2 more answers
How does natural selection affect populations?
k0ka [10]

Answer:

Over time, these advantageous traits become more common in the population. Through this process of natural selection, favorable traits are transmitted through generations. Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species.

Explanation:

5 0
3 years ago
In an aquatic ecosystem, the aquatic plants are eaten by small invertebrates that in turn are eaten by crayfish, the crayfish ar
Assoli18 [71]

Answer:

a.aquatic plants

Explanation:

The energy stored in organic matters, which can be used as fuel for various purposes. This the same energy obtained from the sun that is passed on to each tropic level by the 10% law. This is known as biomass energy.

Biomass is highest at the first trophic level in any food chain. In the aquatic food chain also the highest biomass at the first trophic level which aquatic plants.

Hence option a is correct.

8 0
3 years ago
WHEN ARE TREES CARVED UNDER WHICH CONDITIONS CAN IT GROW UP AGAIN?
skelet666 [1.2K]

Answer:

Explanation:

In critical conditions since when a forest is cut down if it rains the land is not in a condition for trees to flourish since every time it rains you will see a flood devastating any plant that tries to grow.

8 0
3 years ago
Other questions:
  • Ideas of the atom have changed over time. Which idea do scientists now consider inaccurate? Electrons are arranged in layers. El
    14·2 answers
  • What will most likely be the result if all of the mitochondria are removed from a plant cell? a it will be unable to carry out r
    7·1 answer
  • What two phases of the moon cause the strongest tides?
    12·1 answer
  • What kind of energy might be saved up for future use?
    8·1 answer
  • Voltage sources are used to sustain?
    10·1 answer
  • In RNA, A matches with <br> A. U<br><br> B. G<br><br> C. T<br><br> D. C
    14·1 answer
  • Alleles are described as ____________________. homologous chromosomes homologous chromosomes alternate versions of a gene altern
    14·1 answer
  • Question<br> Improve the student's model of gas exchange by drawing the missing component.
    6·1 answer
  • Is it necessary for anyone to acquire a skill. Give your reason​
    8·1 answer
  • Please help me with this i have class soon
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!