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
Korvikt [17]
3 years ago
7

HELPP ME !!!! DUE NOW!!!!!!

Chemistry
2 answers:
Deffense [45]3 years ago
8 0

Answer:

the answer is

a

b

d

c

Explanation:

hopeit help

sukhopar [10]3 years ago
5 0

Answer:

A.seven

B.eight

D.five

Csix

Explanation:

Hope this help

Mark brainliest

You might be interested in
How do we turn petroleum into energy we use?
arlik [135]

You don't "turn" it into energy; petroleum HAS stored energy (chemical energy).However, you can turn it into ANOTHER TYPE OF ENERGY; usually this is done by burning the petroleum, and using it to drive machinery.

Since burning fuels is wasteful (the efficiency is limited, in theory, to the Carnot efficiency of a heat engine), other options are being explored, such as chemical reactions in a fuel cell. But such technology is not yet used on a large scale.

7 0
3 years ago
Which type of star has the greatest temperature on the HR diagram? Question 7 options: Red Supergiants Main Sequence White Dwarf
Sauron [17]

Answer:

Red supergiant

Explanation:

Their core is the hottest.

plz mark me as brainliest.

7 0
2 years ago
Give the half equation to show what happens to oxygen when it is rusting
ycow [4]

Answer:

½O 2 + 2e - + H 2O → 2OH.

Explanation:

Redox reactions - Higher

In terms of electrons:

oxidation is loss of electrons

reduction is gain of electrons

Rusting is a complex process. The example below show why both water and oxygen are needed for rusting to occur. They are interesting examples of oxidation, reduction and the use of half equations:

iron loses electrons and is oxidised to iron(II) ions: Fe → Fe2+ + 2e-

oxygen gains electrons in the presence of water and is reduced: ½O2 + 2e- + H2O → 2OH-

iron(II) ions lose electrons and are oxidised to iron(III) ions by oxygen: 2Fe2+ + ½O2 → 2Fe3+ + O2-

3 0
3 years ago
How many Na and Cl molucules are in this atom? Please help
kati45 [8]
5 Na molecules and 5 Cl molecules
5 0
3 years ago
Read 2 more answers
What happens when an atom of sulfur combines with two atoms of chlorine to produce SCI2?
Aloiza [94]

Answer:..A.) Each chlorine atom shares a pair of electrons with the sulfur atom

3 0
2 years ago
Other questions:
  • Everything to know about on acids and alkalines plz help me !!!
    5·1 answer
  • In the process of photosynthesis, carbon dioxide and water react chemically, with the help of sunlight, to produce oxygen
    6·1 answer
  • An someone help i need the structure of 3,3-dimethylpentane?
    10·1 answer
  • Water moves to the top of tall trees because of
    8·1 answer
  • Where else do you see Force & Motion in real-world experiences?
    6·2 answers
  • If two parents with the genotypes bb and BB have children, what percentage of their children will have bushy eyebrows (dominant)
    13·1 answer
  • Which element is malleable and ductile?
    8·1 answer
  • Element X has two known isotopes. If 83% of the sample weighs 76 amu and the remaining 17% weighs 73.6 amu, what is the atomic m
    8·1 answer
  • How many moles of oxygen do you need to burn one mole of Mg?
    10·1 answer
  • In science, the ability to do work is called _________.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!