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
Mazyrski [523]
3 years ago
5

What is an element of calcium?

Biology
2 answers:
REY [17]3 years ago
6 0

Answer:

symbol :Ca

atomic number :20

- Calcium is a silvery-white, soft metal that tarnishes rapidly in air and reacts with water. Calcium metal is used as a reducing agent in preparing other metals such as thorium and uranium. It is also used as an alloying agent for aluminium, beryllium, copper, lead and magnesium alloys.

Explanation:

calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. ... It is the fifth most abundant element in Earth's crust and the third most abundant metal, after iron and aluminium.

Sunny_sXe [5.5K]3 years ago
3 0

Answer:

Calcium is a chemical element with the symbol Ca and atomic number 20.

Explanation:

You might be interested in
Why did primates evolve?
ivolga24 [154]
<span>Humans did not evolve from apes, gorillas or chimps. We are all modern species that have followed different evolutionary paths, though humans share a common ancestor with some primates, such as the African ape. The timeline of human evolution is long and controversial, with significant gaps.</span>
4 0
3 years ago
How about making science fair
Oxana [17]
Of solar system will b the best that i think
4 0
3 years ago
Read 2 more answers
Arteries are blood vessels that transport oxygen-rich blood and nutrients throughout the body. What level of organization is an
Contact [7]

Answer:C

Explanation:

The arteries are not a cell bc that is too simple a tissue is also too simple its not a system bc arteries are not a lot of organs working together so its C

5 0
3 years ago
A. Differentiate between periodic and non periodic with one example each.
tangare [24]
Periodic is something of a cycle. For example a women’s period. Something non periodic is something of an irregular cycle. For example the speed of a car.

Conduction is the transfer of energy and convection is a circular movement
4 0
3 years ago
PLS HELP ASAP!! PPLLLEEAAASSSEEE
Vitek1552 [10]
I think it's a metal spoon is a thermal conductor and conducts heats quickly
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which best describes how long it usually takes for speciation to occur
    11·1 answer
  • At which time of the day would the nurse expect to obtain the lowest body temperature?
    14·1 answer
  • In a particular plant, two genes control height and flower color. tall height (t) is dominant to short height (t). yellow flower
    6·1 answer
  • Water can move freely through the membrane from a higher to a lower concentration in a transportation process called _____.
    5·2 answers
  • The diagram below shows a portion of the water cycle. (3 points)
    11·2 answers
  • All of the following are true facts about enzymes EXCEPT
    9·2 answers
  • 3. What is the difference between individual characteristics and class characteristics?
    5·1 answer
  • Which process produces the sediments that ultimately lead to soil formation?
    7·1 answer
  • 25 points
    13·1 answer
  • When assigning a scientific name to an organism,
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!