The atomic number of an element is equal to the number of protons in each atom of the element. All helium atoms have 2 protons. What is the atomic number of helium?

Convert 3.45 g/ml to lb/in^3

The many rows of sharp, jagged teeth on some sharks is an example of an

Phenol red is a common ph indicator. you add phenol red to an unknown substance and it turns yellow. what does this indicate about the ph of the substance?

What chemical property causes rust to form on a nail?

Which of the following is a way to conserve water quantity? Buying bottled water Reducing the amount of detergent used in the laundry Decreasing the amount of electricity used for appliances None of the above

Resonance in air columns is used in which of these musical Instruments?

A student prepared a standard stock copper (II) sulfate solution with an absorbance value of 0.862. The student then decided to prepare a second solution containing copper (II) sulfate from the standard stock solution.

How do the results for methane compare to those for butane? does your experimental data verify charles's law?

How many grams of naoh would be needed to make 0.50 l of a 1.25 molar naoh solution? 2.5 grams 16 grams 25 grams 12 grams?

What makes salt an ionic compound?