The isotope 65Cu2 + has how many electrons and how many protons?

If I use 0.0395 kg of water to dissolve 0.0189 kg of salt, what is the mass percent of this solution?

In the formula KBr, there is/are: a. 1 potassium atom b. 2 potassium atoms c. 1 bromine atom d. 2 bromine atoms

A student has to perform an experiment on the effect of heat on a particular chemical which can be seen in the form of a color change. Which section of his lab report will include the color change in that chemical? Title Conclusions Results

A sample of a gas is placed inside a cylinder that is a fixed size. The cylinder is heated as additional gas is added to it. What will most likely happen to the pressure of the gas inside the cylinder?

Determine the mass in grams of sucrose that must be added to 26 g of water to make a 1.15 m solution. Enter your answer to 2 decimal places.

23 Which term identifies a type of organic reaction? (1) deposition (3) esterification (2) distillation (4) sublimation

several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear is white. What process led to to this difference in fur color.

What will be the outcome of putting litmus paper into bleach? a. red paper turns blue, blue paper turns red b. red paper does not change, blue paper turns red c. red paper turns blue, blue paper does not change d.

What makes it possible for ships to float?

How many moles of water will be produced when 3 moles of ethane are burned