Answer:
Particles in a solid can only vibrate. In a liquid, they slide against each other. In a gas, they move freely, bouncing and bumping into each other.
Explanation:
A. motion of particles.
B. density of particles.
C. randomness of particles.
D. kinetic energy of particles.
Answer: is C
Explanation:
The most appropriate label for the y-axis in a graph comparing states of substances would be related to changes that occur in different states of matter, such as kinetic energy or motion. The label 'density of particles' would not be appropriate, as it doesn't significantly vary between states.
The appropriate label for the y-axis on a graph that compares three states of a substance might typically be something directly related to those states, such as kinetic energy of particles, motion of particles, or randomness of particles. These labels reflect changes that occur in different states of matter. When substances change state, there are changes in the arrangement and motion of the particles.
By contrast, density of particles would not be an appropriate label. Density, in this sense, is not a property that varies significantly between different states of a substance. The density of a substance in its solid, liquid, or gaseous state does not refer to the density of the individual particles themselves, but to the density of the substance as a whole (mass/volume).
#SPJ2
B. atoms of an element can have different numbers of protons
C. atoms are divisible
D. all atoms of an element are not identical but they must all have the same mass
Vinegar (acetic acid solution) is a polar substance, whereas olive oil is non polar in nature. Like dissolves like. A polar substance cannot dissolve in a non polar compound. Therefore, vinegar which is polar is not soluble in olive oil, a non polar substance. Hence, in a salad dressing olive oil separates out from vinegar.
Added salt would dissolve in vinegar solution as salt, a polar substance which is chemically, sodium chloride is an ionic substance. It can dissolve in the polar vinegar solution but not olive oil.
Answer:
no sorry
Explanation: i don't know this cause i need hep too
The volume occupied by 454 grams of copper, given a density of 8.92g/mL, can be calculated using the formula for density (Density = Mass / Volume). When rearranged to find volume (Volume = Mass / Density) and substituting the given values, the volume occupied is approximately 50.9 mL.
When calculating volume in chemistry, we use the formula for density, which is: Density = Mass / Volume. In this case, the given values are mass (454g) and density (8.92g/mL). If we rearrange the formula to solve the volume, we get: Volume = Mass / Density. So, if we substitute the given values into the equation, we obtain: Volume = 454g / 8.92g/mL. In performing the operation, we get approximately 50.9 mL. Hence 454 grams of copper occupy 50.9 mL of volume.
#SPJ2