How to figure out if a reaction is exothermic or endothermic?

For the combustion of hydrogen gas with oxygen gas to yield water vapor. part a calculate the standard entropy change (1 bar) at 298 k.

What are the effects of consuming a diet made up mostly of fats? a. The citric acid cycle becomes overwhelmed with intermediates. b. Acetoacetate concentration increases. c. Oxaloacetate concentration decreases. d. Acetyl‑CoA concentration increases.

What is the relationship between the Kuiper Belt and the status of Pluto today?

Why is pseudo science not considered real science a. it is not testable b. it involves the stars c. it is based on facts d. it is sometimes not popular with certain groups e. many people believe in the concept

There are many different types of objects in the solar system. Which type of object is the Sun?

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