An unknown substance has a mass of 19.1 g. when the substance absorbs 1.719*102 j of heat, the temperature of the substance is raised from 25.0 ∘c to 45.0 ∘c. what is the most likely identity of the substance?

How are chemical bonds formed?

Balance the following chemical equation using the smallest set of integers. I₂ + Cl₂ + H₂O - --> HIO₂ + HCl The coefficient on H₂O is: A. 1 B. 2 C. 5 D. 6

How many electrons does (Al) have to give up to achieve a noble gas?

What does the color and smooth texture of this reveal about its formation? It cools rapidly and contains dark minerals. o It cools slowly and contains dark minerals. O It cools rapidly and contains light minerals.

Two objects that take up the same amount of space must have the same-

2H2S (g) 2H2 (g) + S2 (g) Kc = 1.67 * 10 ^-7 at 800 C A 0.500 L reaction vessel initially contains 0.0125 mol of H2S at 800 C. Find the equilibrium concentrations of H2 and S2.

An atom has an atomic number of 9 a mass number of 19 and an electron configuration of 2-6-1 explain why the number of electrons in the second and third shells shows that this is in an excited state

How can a chemical reaction be sped up? Pack in more of the reactant to increase the_.

How does a mixture of benzoic acid and benzaldehyde can be isolated separately by extractions?

What is a compound? a) a combination of two or more substances that are not chemically combined b) a combination of two or more elements that are combined in a certain ratio