Write the definition of a compound.

The mass of a proton is approximately equal to the mass of

In terms of size, between which of the spheres would you find the ca2 + and s2 - ions?

Segundo o entendimento do STF, assinale a alternativa correta sobre o pedágio:

The percentage yield of the following reaction is 85 %. 2 Al, + 31--> 2 AICI. How many grams of AICI, will be actually obtained from 1008 aluminium metal

A 1.9 L reaction vessel, initially at 298 K, contains nitrogen gas at a partial pressure of 337 mmHg and oxygen gas at a partial pressure of 580 mmHg. What is the pressure of N2O4 in the reaction vessel after the reaction?

Which metal in Period 5 is very reactive and has two valence electrons in each atom? rubidium (RD) strontium (SI) zirconium (Z1) silver (Ag)

Sara and Sam went for a two-hour drive. According to the graph, between. 75 hours and 1.25 hours into their trip, they A) slowed down to a speed of 15km/hour. B) travelled at a constant rate of 30km/hour.

Define the following terms: acids, bases, oxoacids, oxoanions, and hydrates.

Calculate the concentration of a solution that has 6.7 moles in a volume of 0.6 liters.

Is sidewalk cement an element or a compound?