Indica falso o verdadero según la afirmación. 1. a. La velocidad de las ondas depende del medio en el que se propague la onda. ( )
b. La luz es una onda que se propaga con una rapidez de 340 metros por segundo. ( )
c. Al número de vibraciones que realizan las partículas en un segundo se le conoce cómo periodo. ( )
d. Las ondas sonoras se transportan con mayor rapidez en el aire. ( )
e. La longitud de onda es la distancia entre dos valles consecutivos. ( )

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull

Which description best characterizes the motion of particles in a solid?

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.