How to find effective nuclear charge

One isotope of a metallic element has the mass number 63 and 33 neutrons in the nucleus. The cation derived from the isotope has 28 electrons.

What is the difference between a strong acid and a weak acid?

Which substance can not be decomposed by a chemical change? A. Ammonia B. Copper C. Propanol D. Water (P. s, tysm)

Do two compounds form a mixture or a pure substance when you put them together mechanically, such as by stirring?

According to the kinetic theory of gases a gas can be compressed much more than a liquid or solid because

Consider a three sequentially stepped process named as Process A, Process B and Process C. Input comes into Process A. Output form A goes into Process B. Output from B goes into Process C. Output of C is the final output.

What are elements and how do they differ?

Write the structire of the salt that forms when diethylamine is mixed with hydrochloric acis

The heat of combustion of propane, C3H8, is 2220 kJ/mol. The specific heat of copper is 0.385 J/g°C. How many grams of propane must be burned to raise the temperature of a 10.0 kg block of copper from 25.0°C to 65.

Which is an example of Temporal Isolation? A. Flowers that bloom in different months. B. Birds that have different mating calls C. Fruits flies that mate in different locations. D. Squirrels that have different fur colors