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
Varvara68 [4.7K]
3 years ago
9

What is the difference between an element and a compound?

Chemistry
2 answers:
dsp733 years ago
8 0
D. Would be the correct answer :)
sashaice [31]3 years ago
6 0
D.
im not completely sure but i did the process of elimination. it’s not B because an element is one type of atom. it’s not A because both elements and compounds are pure substances. and it’s not C because it’s not in mixed composition
You might be interested in
Iron reacts with cl2 according to the equation 2 fe(s) + 3 cl2(g) ? 2 fecl3(s). how many moles of cl2 is needed to react with 4.
IceJOKER [234]
2Fe + 3Cl₂ ---> 2FeCl₃

4.4mol of Fe, you have a 2:3 ratio of Fe to Cl₂ so divide 4.4/2 = 2.2 and multiply by three 2.2 x 3 = 6.6mol of Cl₂

hope that helps :)
8 0
3 years ago
Read 2 more answers
Science help please 20 points
cupoosta [38]

Answer:

1. Earth

2. Sun

3. Sun

4. Earth

5. Earth

6.Sun

7. Earth

Explanation:

I'm a lil sus of 3 and 6 but I'm pretty sure it's right.

7 0
3 years ago
Read 2 more answers
What is meant by the term neutral in relation to atoms?
Sonbull [250]

Answer:

it means positive and negative charges are  equal.

Explanation:

An atom consist of electron, protons and neutrons. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.

All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other. For example if neutral atom has 6 protons than it must have 6 electrons. The sum of neutrons and protons is the mass number of an atom while the number of protons are number of electrons is the atomic number of an atom.

when a neutral atom loses a electron positive charge is created because  number of protons are positive charge becomes greater than negative charge.

X → X⁺ + e⁻

When a neutral atom accept  the electron negative charge is created because negative charge is become greater than positive charge.

X + e⁻ → X⁻

3 0
3 years ago
Convert 850 mm Hg to kPa. *
Feliz [49]

Answer:

113.324 KPA

Explanation:

4 0
3 years ago
Explanation needed please!
VashaNatasha [74]

Answer:

Below

Explanation:

2) there are 28 protons in this isotope

     The number that is on the bottom of the "stacked pair" tells you how many protons are in this isotope. It is often represented by the variable Z.

3) there are 35 neutrons in this isotope

     Subtract the number of protons (28) from the top number

4) there are 28 electrons in the neutral element of Nickel

     If you were to look at the period table and find Ni, you would see that its atomic number is 28. This number tells us the amount of protons and electrons there are in that element.

5) 62.9296694 atomic mass units

     Just search it up (unless your teacher wants you to calculate it)

6) there are 92 protons in this isotope

     Again just look at the Z value to find the proton count

7) there are 146 neutrons in this isotope

     Subtract 238 - 92 = 146

8) there are 92 electrons in the neutral element of uranium

     Again just look at the periodic table and find U

9) 238.0507882 atomic mass units

10) 12C or carbon 12 is more likely to bond with oxygen that 14c carbon 14

     This is because 12C is more abundant at 98.93% than 14C

Hope this helps! Best of luck <3

6 0
2 years ago
Other questions:
  • The concentration of hydrogen in soil sample 13 * 10 ^ - 6 * M the soil is tested with a pH meter, what value should the meter r
    11·1 answer
  • Given the redox reaction: Ni + Sn4+ → Ni2+ + Sn2+<br> Which species has been oxidized?
    9·1 answer
  • By changing the number of _______ you get the same element that has a different atomic mass. An example of this would be carbon-
    7·1 answer
  • At 25 °c, only 0.0100 mol of the generic salt ab2 is soluble in 1.00 l of water. what is the ksp of the salt at 25 °c? ab2(s)↽−−
    13·1 answer
  • Name these covalent compounds: SO2, P2CL5 and N2O4​
    8·1 answer
  • The cylinder of aluminum in class was approximately 13mm in circumference and 42mm in length. What would be it's approximate mas
    5·1 answer
  • A flask contains 0.340 mol of liquid bromine, br2. determine the number of bromine molecules present in the flask.
    11·2 answers
  • Arrange the components of the electron transport chain in order from least electronegative to most electronegative thereby indic
    10·1 answer
  • ------ A spring tide can occur..? and anybody help me, please
    11·1 answer
  • Plz PLZ plz PLz Plz Plz Help Plz dont answer if you dont know thank you :)
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!