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
DanielleElmas [232]
3 years ago
10

Science help me pleasee :)

Chemistry
1 answer:
kkurt [141]3 years ago
6 0

Explanation:

i think right one is c.

it is because proton is different in each element.

You might be interested in
A sample of CH4 is confined in a water manometer. The temperature of the system is 30.0 °C and the atmospheric pressure is 98.70
kakasveta [241]

Explanation:

The given data is as follows.

  P_{atm} = 98.70 kPa = 98700 Pa,  

      T = 30^{o}C = (30 + 273) K = 303 K

      height (h) = 30 mm = 0.03 m (as 1 m = 100 mm)

Density = 13.534 g/mL = 13.534 g/mL \times \frac{10^{6}cm^{3}}{1 m^{3}} \times \frac{1 kg}{1000 g}

                = 13534 kg/m^{3}

The relation between pressure and atmospheric pressure is as follows.

             P = P_{atm} + \rho gh

Putting the given values into the above formula as follows.

            P = P_{atm} + \rho gh

               = 98700 Pa + 13534 \times 9.81 \times 0.03 m

               = 102683.05 Pa

               = 102.68 kPa

thus, we can conclude that the pressure of the given methane gas is 102.68 kPa.

8 0
4 years ago
Atoms of elements at the top of a group on the periodic table or smaller than the atoms of elements at the bottom of the group.
castortr0y [4]
Generally speaking the larger, more massive elements are less stable, like isotopes of elements. With this said, they are less likely to react since they will become heavy and unstable. This is why chlorine is more reactive with other elements like sodium than astatine.
3 0
3 years ago
Read 2 more answers
This atom tends to gain an electron in its outer shell so that there are a total of 8 electrons.
Archy [21]

oh its a Chlorine isn't it....

it's electronic configuration is

2,8,7

so to make it 8 in its outermost shell it should gain 1 electron...

5 0
3 years ago
Guys, please help me and tell me how you found the answer!
sergij07 [2.7K]

Answer:

The First one is: 0.563atm

The second one is: 1.692atm

Hope this helps!

Explanation: Look at Photo Attached

3 0
4 years ago
What is an EXAMPLE of a TISSUE found in your body?
Leno4ka [110]

Answer:

Blood, bone, tendon, ligament, adipose, and areolar tissues are examples of connective tissues.Explanation:

6 0
3 years ago
Other questions:
  • Which sentences describe describe disadvantages of burning fossil fuel?
    10·1 answer
  • Help asap!!!!! Please
    11·2 answers
  • Explain the results for the tube in which 1.0 m naoh was added to benzoic acid. write an equation for this, using complete struc
    10·1 answer
  • How many atoms are present in 4.0 Mol of sodium
    10·1 answer
  • How many significant figures are in 0.00375
    5·1 answer
  • Look at the picture. Assume that all of these substances are in different containers. In all of
    14·1 answer
  • Consider the half reaction below.
    14·1 answer
  • Give a possible explanation for the relative amounts of the isometric methyl nitrobenzoates formed in the nitration reaction. Co
    9·1 answer
  • The sun causes water in the pond to evaporate
    9·2 answers
  • Which best describes how water's movement affects landforms? Select one 0 Mechanical weathering by water causes rock to break do
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!