Answer:
si
Explanation:
Los catalizadores son sustancias que aceleran una reacción química, proporcionando una ruta alternativa para romper y formar nuevos enlaces entre átomos. Su importancia reside en el hecho de que este nuevo camino requiere menos energía que el original, lo que facilita el proceso.
Answer:
The correct answer is : The particles within all three states of matter are constantly moving.
Explanation:
The particles in the solid, liquid and gaseous states are in motion. In the latter is where they present greater movement and high kinetic energy, then follow the liquid state and finally the solid where the movement is more restricted (in this case, the particles vibrate).
Answer:
The mass of the block made of lead = 255.6 grams
Explanation:
<u>Step 1</u>: Data given
Density of lead = 11.36 g/cm³
length of the block = 5 cm, 1.5 cm and 3 cm
<u>Step 2</u>: Calculate the volume of the block
Volume = length 1 * length 2 * length 3
Volume = 5cm * 1.5 cm * 3 cm
Volume = 22.5 cm³
<u>Step 3</u>: Calculate mass
Mass of the lead block = density of lead * volume
Mass of the lead block = 11.36 g/cm³ * 22.5cm³
Mass of the lead block = 255.6 grams
The mass of the block made of lead = 255.6 grams
If a salt has a pH less than 7, then it is an acid. All acids start with a H in there formula. The only compound that starts with an H from the listed options is HCOOK.
So the salt HCOOK has a pH<7
