The water molecules slow down, stronger attractions form between them, and the molecules stop flowing around.
The water molecules speed up, attractions between them become weaker, and the molecules spread out.
The water molecules speed up, new bonds are formed, and the new molecules are pulled closer together.
Answer:
The water molecules slow down, stronger attractions form between them, and the molecules stop flowing around.
Explanation:
imagine how the solids (so ice) are structured: atoms are very close to each other and vibrate on the spot.
b. nicotine
c. carbon dioxide
d. carbon monoxide
B is the correct answer, thankyou.
Answer:
When we throw a projectile up, the negative gravity acceleration acts on it. Thus, when the ball reaches the highest point, the speed of the ball becomes zero.
Explanation:
Acceleration is a vector magnitude that indicates the variation of speed per unit of time.
As displacement, velocity and acceleration are vectors we will analyze this vectorly.
We consider positive acceleration when the acceleration vector is directed in the same direction as the movement. (Acceleration)
On the other hand, we consider negative acceleration when the acceleration vector is directed in the opposite direction to the movement. (de-acceleration)
B. An electronegativity difference of greater than 2.7 between the atoms
C. An electronegativity difference of less than 1.7 between the atoms
D. An electronegativity difference of less than 2.7 between the atoms
Answer is: A. An electronegativity difference of greater than 1.7 between the atoms.
Electronegativity (χ) is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.
Atoms with higher electronegativity attracts more electrons towards it, electrons are closer to that atom.
For example, in ionic salt sodium fluoride (NaF), fluorine has electronegativity approximately χ = 4 and sodium χ = 1 (Δχ = 4 - 1; Δχ = 3), fluorine attracts electron and it has negative charge and sodium has positive charge.
Answer:
3.3 liters of the mixture is needed to be removed and filled with 3.33 liters pure antifreeze to reach a concentration of 60% antifreeze.
Explanation:
A 10 L mixture is made up of 40% antifreeze.
Initial Volume of antifreeze in 40% mixture = 40% of 10 L = 4L
Let volume of pure antifreeze added = x
Volume of antifreeze removed = 40% of x= 0.4 x
Volume of antifreeze in 60% mixture = 60% of 10 L = 6 L
Volume of antifreeze left after removal of 0.4 x L of antifreeze and addition of x L of pure antifreeze will be equal to 6 L of antifreeze in the final solution.
4L - (0.4 x ) + x = 6L
x = 3.33 L
3.3 liters of the mixture is needed to be removed and filled with 3.3 liter pure antifreeze to reach a concentration of 60% antifreeze.