Answer:
Gas molecules move at random with no attractive forces between them.
Explanation:
Kinetic-molecular theory is based on the following postulates, or assumptions.
Gases are composed of a large number of particles that behave like hard, spherical objects in a state of constant, random motion.
These particles move in a straight line until they collide with another particle or the walls of the container.
These particles are much smaller than the distance between particles. Most of the volume of a gas is therefore empty space.
There is no force of attraction between gas particles or between the particles and the walls of the container.
Collisions between gas particles or collisions with the walls of the container are perfectly elastic. None of the energy of a gas particle is lost when it collides with another particle or with the walls of the container.
The average kinetic energy of a collection of gas particles depends on the temperature of the gas and nothing else.
Answer:
Below.
Explanation:
The balanced equation is:
Ba(CN)2 + H2SO4 ---> 2H(CN) + BaSO4
Distinguishing Between Pure Substances and Mixtures
Pure substances can be either elements or compounds. Mixtures can be either homogeneous or heterogeneous. ... Gasoline is thus a blend of different compounds, so it is a mixture.
Answer:
<h3>The answer is 8.33 g/mL</h3>
Explanation:
The density of a substance can be found by using the formula
From the question
mass = 100 g
volume = 12 mL
We have
We have the final answer as
<h3>8.33 g/mL</h3>
Hope this helps you
Answer: O a layer of grass clippings, a layer of fruit scraps, some soil, and some water
Explanation:
The compost pile is made up of decomposing organic materials that are obtained from dead and decaying vegetable or plant matter, animal materials like dung, dead skins and others. The decomposition is done by the soil microbes that recycle the matter into nutrients that are absorbed by the plants. All the components of the compost pile are degradable and completely converted into organic matter. The grass clipping and fruit scraps mixed with soil and water can be easily decomposed by the soil microbes easily.