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
Ira Lisetskai [31]
3 years ago
11

Each element in the periodic table is assigned an atomic number. This number is the same as ___.

Chemistry
2 answers:
olasank [31]3 years ago
6 0

Answer:

Its C

Explanation:

The atomic number shows how many protons are in the element.

Evgen [1.6K]3 years ago
4 0

answer is D

hope that helped:)

You might be interested in
Calculate the percent composition by mass of each element in Al(OH)3. Use at least three significant figures.
motikmotik

Answer:

nope nope nope nope nope nope nope nope

7 0
3 years ago
Read 2 more answers
Compound element ratio of 1:2:6<br> Ba(NO3)2+Na2SO4
Karo-lina-s [1.5K]

1:2:6? Ba(NO3)2 +Na2SO4 -----> BaSO4 + 2NaNO3

Ba(NO3)2

BaSO4

NaNO 3

Na2SO4

5 0
3 years ago
Read 2 more answers
How are fluids used and controlled in manufactured devices?
BlackZzzverrR [31]

Answer:

Fluid power systems perform work by a pressurized fluid bearing directly on a piston in a cylinder or in a fluid motor. A fluid cylinder produces a force resulting in linear motion, whereas a fluid motor produces torque resulting in rotary motion. Within a fluid power system, cylinders and motors (also called actuators) do the desired work. Control components such as valves regulate the system.

4 0
2 years ago
For the following electrochemical reaction: Al3+(aq) + 3e -&gt; Al(s) Eº = -1.66 V E° = 2.87 F2(g) + 2e -&gt; 2F (aq) Calculate
makvit [3.9K]

<u>Answer:</u> The standard electrode potential of the cell is 4.53 V.

<u>Explanation:</u>

We are given:

E^o_{(F_2/F^-)}=2.87V\\E^o_{(Al^{3+}/Al)}=-1.66V

The substance having highest positive E^o potential will always get reduced and will undergo reduction reaction. Here, fluorine will undergo reduction reaction will get reduced.

Aluminium will undergo oxidation reaction and will get oxidized.

Substance getting oxidized always act as anode and the one getting reduced always act as cathode.

To calculate the E^o_{cell} of the reaction, we use the equation:

E^o_{cell}=E^o_{cathode}-E^o_{anode}

E^o_{cell}=2.87-(-1.66)=4.53V

Hence, the standard electrode potential of the cell is 4.53 V.

6 0
2 years ago
Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it
lions [1.4K]

<u>Answer:</u> The equilibrium concentration of COF_2 is 0.332 M

<u>Explanation:</u>

We are given:

Initial concentration of COF_2 = 2.00 M

The given chemical equation follows:

                2COF_2(g)\rightleftharpoons CO_2(g)+CF_4(g)

<u>Initial:</u>          2.00

<u>At eqllm:</u>     2.00-2x          x      x

The expression of K_c for above equation follows:

K_c=\frac{[CO_2][CF_4]}{[COF_2]^2}

We are given:

K_c=6.30

Putting values in above expression, we get:

6.30=\frac{x\times x}{(2.00-2x)^2}\\\\x=0.834,1.25

Neglecting the value of x = 1.25 because equilibrium concentration of the reactant will becomes negative, which is not possible

So, equilibrium concentration of COF_2=(2.00-2x)=[2.00-(2\times 0.834)]=0.332M

Hence, the equilibrium concentration of COF_2 is 0.332 M

4 0
3 years ago
Other questions:
  • Which statements correctly describe atmospheric pressure?
    7·1 answer
  • In run 1, you mix 8.0 mL of the 43 g/L MO solution (MO molar mass is 327.33 g/mol), 2.60 mL of the 0.040 M SnCl2 in 2 M HCl solu
    9·1 answer
  • Several different species of birds, including heron, flamingos, and skimmers, can all successfully feed along the coast because
    8·1 answer
  • The percent composition of all elements in HClO3 is:
    8·1 answer
  • Which profile best shows the topography alone line AD
    7·1 answer
  • Which measurement describes the pressure of a gas?
    13·1 answer
  • The picture provided shows the arrangement of electrons in atomic shells around the nucleus of four different elements.
    10·1 answer
  • What is the best way to make a supersaturated solution?
    5·1 answer
  • Why a plant can survive longer than bacteria
    9·1 answer
  • What is one element a topographic map shows?<br><br> Air flow<br> Climate<br> People<br> Relief
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!