How many atoms are in a sample of 68.7 grams copper (Cu) ?

Will mark brainliest 35 pts 1. What happens to the soft-drink solution when you increase the amount of powder in a given amount of water? 2. How could you tell which of two different soft-drinks solutions are more concentrated? 3.

Moles of Zn (NO3) 2 in 161.50 g of this substance.

Is ammonium hydroxide a strong base

All matter contains both positively and negatively charged particles. why do most things have no net charge?

Determine the solubility of N2 in water exposed to air at 25°C if the atmospheric pressure is 1.2 atm. Assume that the mole fraction of nitrogen is 0.78 in air and the Henry's law constant for nitrogen in water at this temperature is 6.

Why is pure water not a conductor of electricity? A. Pure water has no free ions. B. Pure water has many dissolved solids. C. Pure water has few dissolved solids. D. Pure water has many free ions.

Why do the pH scale generally range from 0 to 14 in aqueous solution?

For measuring the volume of a liquid, beakers are generally: more accurate than graduated cylinders less accurate than graduated cylinders equally as accurate as graduated cylinders always used when highly accurate measurements of liquid volumes are

Identify the strongest attractive force present in the pure substances shown: london forces, dipole-dipole, hydrogen bonding, ion-dipole, or ionic attractions.

How is electronegativity used in determining the ionic or covalent character of the bonding between two elements?