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
hjlf
3 years ago
8

Need help on this. Only if you know please.

Chemistry
2 answers:
Effectus [21]3 years ago
8 0

Answer:

pea plant gives off nitrogen, so it should be nitrogen to butterfly.

Explanation:

Gala2k [10]3 years ago
5 0
I think the third one. please mark me brainliest. have a great day and good luck with school
You might be interested in
Which three statements about gravity and the formation of the solar system
Delicious77 [7]

Answer:

B. Gravity held the pieces of forming planets together.

c. Gravity pulled most of the matter into the center of the solar system

D. Gravity caused the planets and Sun to have spherical shapes.

Explanation:

When a collection of grains pulled together by their gravitational forces would keep in by the gravity of a star, it would eventually became bigger to the point a planet was formed.

The sun's strong gravitational force pulled most of the matter around it to the center of the solar system.

The spherical shape of planets is a result of their gravity pulling equally from all sides, shaping it into a sphere.

7 0
2 years ago
Read 2 more answers
Any atom is most stable when it’s outermost energy level contains
slamgirl [31]

Explanation:

Atoms are at their most stable when their outermost energy level is either empty of electrons or filled with electrons. Sodium atoms have 11 electrons. Two of these are in the lowest energy level, eight are in the second energy level and then one electron is in the third energy level.

6 0
3 years ago
Calculate the mole mass of following compound<br> FeSO4
Arada [10]

Explanation:

the molar mass of the compound is 1502g/mol

3 0
3 years ago
1. फल
Allisa [31]

Answer:

बालकेभ्य।

2 गुरुभि :

3 •••••

4 कवीन।

5 0
3 years ago
oxygen is a common oxidizing agent in nature. what change in the oxidation number of oxygen must occur if it is to be an oxidizi
Minchanka [31]

Answer is: the oxidation number of oxygen must decrease.

Oxidizing agent is element (substance) that gain electrons in chemical reaction.

For example, balanced chemical reaction: C + O₂ → CO₂.

Oxygen change oxidation number from 0 to oxidation number -2 (reduction) and carbon change from 0 to +4 (oxidation)

6 0
3 years ago
Other questions:
  • For the complete combustion of 1.000 mole of methane gas at 298 K and 1 atm pressure, ΔH° = -890.4 kJ/mol. What will be the amou
    5·1 answer
  • Which properties of a substance could change during a<br> PHYSICAL change?
    15·1 answer
  • What qualities make one theory "better" than another in the scientific community?
    6·1 answer
  • How do Newton's laws of motion explain why it is important to keep the ice smooth on a hockey rink so that players
    5·2 answers
  • 2mL of a serum sample was added to 18mL of phosphate buffered saline (PBS) in Tube 1. 10mL of Tube 1 was added to 40mL of PBS in
    14·1 answer
  • Elements that form ionic bonds generally have how many valence electrons? ± 1 or ± 2 ± 2 or ± 3 ± 4 ± 5
    9·1 answer
  • What is the formula for the compound barium hydroxide pentahydrate?
    12·2 answers
  • what is the acceleration of gravity if the force is 390000 N abd the Mass is 9000 kg (also what formula do you use for this?)
    6·1 answer
  • Mention two factors which affect pressure due to liquid contained in a vessel​
    8·2 answers
  • What do The representative elements include
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!