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
otez555 [7]
2 years ago
7

Why do lungfish walk on land?

Chemistry
1 answer:
nordsb [41]2 years ago
6 0

Answer:

The new findings support the theory that walking first arose underwater, preceding the move onto land and the development of toes and limbs adapted to land perambulation.

You might be interested in
Somebody please help me!!
mariarad [96]

Answer:

The given isotope is Br 80

If 35 protons present then its atomic number is 35

Mass number is 80 so its meutrons are 45 because proton+ neutron = mass number

Its electron are 36 because of negative one charge

Explanation:

4 0
3 years ago
Which of the following is a metal?
kogti [31]

Answer:

A.................. I think the answer

3 0
3 years ago
An element has an atomic number of 76. The number of protons and electrons in a neutral atom of the element are ____.
dmitriy555 [2]

Answer:

76 protons 76 electrons

Explanation:

The atomic number in a element is equal to the elements protons and electrons. In this case if the atomic number is 76 the number of protons and electrons would also be 76.

Hope this helps.

8 0
2 years ago
A 57.9 g sample of glass is cooled by 27.0°C. How much heat does it release?
liberstina [14]

Explanation:

A 57.9 g sample of glass is cooled by 2.70'C how much heat does it release

1560

3 0
3 years ago
How many protons, neutrons, and electrons does S^2- have
adell [148]

Answer:

The protons and electrons in each element are equal. The sulfur has 16 electrons and 16 protons. But the ionic atom's electron quantity changes depending on how many it has gained. 'S2-' has gained 2 electrons, which means it has now 18 electrons and 16 protons. 16 neutrons

Explanation:

5 0
2 years ago
Other questions:
  • Which best describes a chain reaction associated with a nuclear reaction? Neutrons released during a fusion reaction cause other
    5·2 answers
  • PROJECT: ABSOLUTE ZERO - REAL OR THEORETICAL?
    15·1 answer
  • What kind of molecule is glucose
    13·1 answer
  • You put to chemicals in a bottle and screw on the lid.when you shake in the bottle starts to warm up what kind of reaction is th
    7·1 answer
  • What is a possible quantum number set for an electron in the 2s orbital of a beryllium (Be) atom?
    8·1 answer
  • Why would a plant use the energy and resources to grow a fruit?
    7·1 answer
  • What is the molarity (molar concentration, unit = M) of K+ found in 200 mL 0.2 M K2HPO4 solution?
    8·1 answer
  • I was born in ……… west.<br><br>complete this sentense with article​
    10·1 answer
  • ((Write any one principle of Permaculture.​
    14·1 answer
  • The disease that affects our lungs is
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!