Which of the answer choices best represents the approximate relative mass of the three subatomic particles?

(Select all that apply.)

protons = neutrons

electrons = neutrons

neutrons > electrons

protons > electrons

Given the balanced equation representing a reaction occurring in an electrolytic cell:

At what temperature will the water in each of these jars reach thermal equilibrium?

Alpha and beta particles and gamma rays are examples of: a. isotopes b. atoms c. ionizing radiation d. neutrons

How many groups are there in the modern periodic table?

Open bottle of beer homogeneous or heterogeneous mixture

Which is a non renewable resource that is used to generate electrical energy

How many grams of sulfur (S8S8) must be dissolved in 100.0 g naphthalene (C10H8C10H8) to make a 0.11 mm solution

Mason compare the properties of two compounds magnesium oxide is an ionic compound and hydrogen peroxide is not an ionic compound there for both compounds most likely

Cisplatin is synthesized as follows: K2PtCl4 (aq) + 2NH3 (aq)  Pt (NH3) 2Cl2 (s) + 2KCl (aq) What mass of cisplatin can be made from 100. g of K2PtCl4 and sufficient NH3? What mass of KCl is also produced?

What is the total number of protons in the nucleus of an atom of potassium-42? (1) 15 (3) 39 (2) 19 (4) 42