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
Papessa [141]
2 years ago
6

a gas chamber is filled with four gases. When a small opening is made in the gas chamber you expect which gas to escape last hyd

rogen,methane, helium, ammonia
Chemistry
1 answer:
Nimfa-mama [501]2 years ago
8 0
I really don’t know the answer, please help this kiddo with his question
You might be interested in
Plz help which this it is the digestive system
myrzilka [38]
I honestly have no clue on this one
8 0
2 years ago
Read 2 more answers
A flask has a mass of 78.23g when empty and 593.63g when filled with water.When the same flask is filled with concentrateds ulfu
butalik [34]

Answer:

Density of concentrated H2SO4 = 1.99g/cm^3 = 1991.79Kg/m^3

Explanation:

mass of empty flask = 78.23g mass of flask filled when with water = 593.63g.

mass of flask filled when with concentrateds sulfuric acid, H2SO4 = 1026.57g

Mass of water = (mass of flask filled when with water) -

(mass of empty flask) = 593.63g - 78.23g = 515.4g

Volume of flask = volume of water = volume of concentrateds sulfuric acid, H2SO4 =

(mass of water)/ density of water) = 515.4g/1.00g/cm^3 = 515.4cm^3

The density of concentrated sulfuric acid is given by

Density of concentrated H2SO4 = (mass of H2SO4) ÷ (volume of H2SO4) = 1026.57g/515.4cm^3 = 1.99g/cm^3 = 1991.79Kg/m^3

7 0
2 years ago
g Five calcite, CaCO3 (MW 100.085 g/mol), samples of equal mass have a total mass of 12.3±0.1 g. What is the absolute uncertaint
diamong [38]

Answer:

The value  is   L  =  0.985 \pm 0.00801 \  g

Explanation:

From the question we are told that

  The  molar mass of CaCO_3 is  MW  =  100.085 \  g/mol

   The  total mass is  m_g  = 12.3 \ g

   The uncertainty of the total mass is \Delta g  = 0.1

Generally the molar weight of calcium is M_c  =  40 g/mol

 The percentage of calcium in calcite is mathematically represented as

          C =  \frac{40.07}{100.085} * 100

          C =  40.03 \%

Generally the mass of each sample is mathematically represented as

     m=  \frac{m_g}{5}

     m=  \frac{12.3}{5}

     m= 2.46 \  g

Generally mass of calcium present in a single sample is mathematically represented as

        m_c = 2.46 *  \frac{40.04}{100}

       m_c = 0.985 \  g

The  uncertainty of  mass of a single sample is mathematically represented as

      k  =  \frac{\Delta g }{5}

        k  =  \frac{0.1 }{5}

       k  =  0.02\  g

The  uncertainty of  mass of calcium in a single sample is mathematically represent

         G  =  \frac{0.02 *  40.04}{ 100}

          G  =  0.00801 \  g

Generally the average mass of calcium in each sample is  

          L  =  0.985 \pm 0.00801

6 0
3 years ago
Sarah's class is studying soils. Her teacher, Ms. Jones, stated that plants will growth in any soil type. Students in Sarah's cl
ivanzaharov [21]

Answer: C)The smaller the soil particles, the more water and air available for plant growth.

Explanation:

4 0
3 years ago
Read 2 more answers
What is the molar mass of a molecule that contains one sodium atom, one oxygen atom, and one hydrogen atom?
GrogVix [38]

wherears one hydrogen atom has a mass of approximately 1 u ,1 mol of h atoms has a mass of approximately 1 gram and wherears one sodium atom has an approximately 1 gram and one sodium atom have approximate mass of 23 u

7 0
2 years ago
Other questions:
  • At a certain temperature this reaction follows second-order kinetics with a rate constant of 0.118 M^-1* s^-1:
    13·1 answer
  • Explain why the air in Earth's atmosphere is a mixture, not a compound. Brainiest offered need it by 6:45!!!
    11·1 answer
  • What is a significant advantage to the cell in having pyruvate dehydrogenase consist of a large
    13·2 answers
  • If the mass of a material is 76 grams and the volume of the material is 16 cm3, what would the density of the material be? g/cm3
    10·1 answer
  • Which of the following is a direct observation? A. Music may help plants grow B. The plant is 22cm on day 23 C. two plants must
    9·2 answers
  • Calculate the concentration of acetate ion in a buffer solution made from 2.00 mL of 0.50 M acetic acid and 8.00 mL of 0.50 sodi
    6·1 answer
  • What is the mass of a solution that has a density of 0.775 g/ml and a volume of 50.0ml?
    8·1 answer
  • 24 POINTS!!!!!!!!!!
    8·2 answers
  • CAN ANYONE SHARE 10 MEMES AND BAG THE BRAINLISST
    11·2 answers
  • The chemical formula of bromomethane is BrCH3. Which correctly describes the number of atoms of each element in bromomethane?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!