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
Anettt [7]
3 years ago
10

What is the identity of the atom shown?

Chemistry
2 answers:
posledela3 years ago
3 0

Answer:

A

Explanation:

Argon has 17 protons and 18 neutron

atomic number is the same as the protons number.

sesenic [268]3 years ago
3 0

Answer:

it a

Explanation:

You might be interested in
A sample of methane gas has a volume of 10 l at a pressure of 1.5 atm and a temperature of 20 °c. what volume does the gas occup
a_sh-v [17]
We can use combined gas laws to solve for the volume of the gas
 \frac{PV}{T}
where P - pressure, V - volume , T - temperature and k - constant
\frac{P1V1}{T1} = \frac{P2V2}{T2}
parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation 
T1 - temperature in Kelvin - 20 °C + 273 = 293 K
T2 - 40 °C + 273 = 313 K
substituting the values 
\frac{1.5 atm*10L}{293 K} =  \frac{0.9 atm*V}{313K}
V = 17.8 L
volume of the gas is 17.8 L 
7 0
3 years ago
Siy-epdv-fwo luna please join​
romanna [79]

is this a cult?im confused

7 0
3 years ago
5 physical properties of all matter
Alexus [3.1K]

color

density

volume

mass

boiling point

melting point

7 0
4 years ago
Read 2 more answers
What mass of oxygen would form from 2.30 moles of water?
Serggg [28]

Answer : The mass of oxygen will be, 36.8 grams

Solution : Given,

Moles of water = 2.30 moles

Molar mass of O_2 = 32 g/mole

First we have to calculate the moles of oxygen.

The balanced chemical reaction will be,

2H_2O\rightarrow 2H_2+O_2

From the balanced reaction we conclude that

2 moles of water decomposes to give 1 mole of O_2

2.30 moles of water decomposes to give \frac{2.3}{2}=1.15 moles of O_2

Now we have to calculate the mass of oxygen.

\text{Mass of }O_2=\text{Moles of }O_2\times \text{Molar mass of }O_2

\text{Mass of }O_2=(1.15moles)\times (32g/mole)=36.8g

Therefore, the mass of oxygen will be, 36.8 grams

8 0
3 years ago
You are standing on the rim of a canyon, you drop a rock and in 7.0 seconds hear the sound pof it hitting the bottom, how deep i
sp2606 [1]

This should help you with your question:

Gravitational pull = 9.8 m/s^2

1/2 x 9.8 x 7^2 = 240.1 m

The rock has fallen 240.1 m.

I cannot help you with the rest, but this should give you a headstart.

8 0
3 years ago
Other questions:
  • When the temperature of the gas changes from cold to hot, the amount of pressure is ___________.
    6·2 answers
  • How many moles are in 987 grams of : Ra(OH)2
    14·2 answers
  • Is MgCO3 organic or inorganic
    14·1 answer
  • Which planet has a distinctive red spot? A. Mercury B. Venus C. Jupiter D. Mars
    12·2 answers
  • What is the weight on earth of a book with a mass of 1.5kg
    9·2 answers
  • SOMEONE help! due today <br> 25 POINTS<br> SEE ATTACHED.
    13·1 answer
  • Arenediazoniums can undergo electrophilic aromatic substitutions with a wide variety of activated aromatic compounds to yield ne
    5·1 answer
  • A sample of Neon is in a sealed container held under isothermic conditions. The initial pressure and volume are 2.7 atm and 4.5
    8·1 answer
  • Which of the following best describes physical science?
    10·1 answer
  • If you have 100 ml of a 0.10 m tris buffer (pka 8.3) at ph 8.3 and you add 3.0 ml of 1.0 m hcl, what will be the new ph?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!