Changing the number of protons in an atom makes

A. an ion

B. an isotope

Be sure to answer all parts. Consider the following reaction: Cd (s) + Fe2 + (aq) → Cd2 + (aq) + Fe (s) E o (Fe2 + / Fe) = - 0.4400 V, E o (Cd2 + / Cd) = - 0.4000 V Calculate the emf for this reaction at 298 K if [Fe2+] = 0.80 M and [Cd2+] = 0.010 M.

A balloon contains 3.9 moles of helium at a pressure of 234 kPa and 67°C temperature. What is the balloon's volume in liters?

Which statement about electrons is not true? One electron state is a bonding orbital between nuclei One electron state is an anti-bonding orbital, which results in an absence of electron density between atoms.

How much is 6.10^23 in grams?

Martina has a sample of an unknown substance, she measures the substance, its mass is 13.5 grams, and its volume is 5cm^3 which metal might her sample be made of? silver density: 10.49 g/cm^3 copper density: 8.96 gm/cm^3 iron density: 7.

If you get pregnant in Dec how long will it take for u to get to second trimester

Name the following compound HClO

Aluminum and Oxygen gas will react to form Aluminum Oxide (Al2O3). When the equation is balanced, How many moles of Al2O3 are formed when a mixture of 0.36 moles Al is ignited? a. 0.12 b. 0.18 c. 0.28 d. 0.46

Which state of the West produces the widest varieties of fruits, vegetables, and nuts? A) California B) Colorado C) Wyoming D) Alaska

A chemical engineer for a fertilizer company is determining the most efficient way to produce ammonia. the engineer carries out the haber reaction under four different conditions.