In chemistry, “mM” stands for millimolar, which is a unit used to express a solute’s concentration in a solution. Explanation: Millimolar (mM) concentrations are often used for convenience when working with solutions of small quantities of substances. One millimolar (1 mM) is equal to one...
Overview of Chemistry Terms The scientific study of matter's characteristics and behaviour is known as chemistry. Chemistry vocabulary and Chemistry glossary are different from the normal vocabulary. It is a branch of natural science that examines the building blocks of matter, including the atoms, m...
In chemistry, the concentration of any species is denoted by writing it in square brackets. For example, [X] means “the concentration of X.” Given the above definition of pH, the fact that a proton is simply a hydrogen atom that has lost its only electron (H+), and using the squa...
How Does DNA Inadequate Hydrogen Bonds? According to Postlethwait and Hopson (2011), DNA is composed of a sugar, a phosphate, and a base: adenine (A), cytosine (C), guanine (G), or thymine (T). The complementary base pairing refers to the bases of A and T pairing together and th...
Write an equation to express the total as a sum of equal addends. i) Use small objects like buttons or coins and arrange them in arrays (e.g., 3 rows of 4 objects). Have your child count the objects in each row and use addition to find the total (e.g., 4 + 4 + 4 = 12...
Chemicals that dissociate in water break into ions that form electrolytes. Electrolytes are classified as strong, weak, or non-electrolytes based on the amount of chemical that dissociates in water. Answer and Explanation: A nonelectrolyte is a chemical that does NOT dissociate into ions when it...
What is static equilibrium in chemistry? For which of the following values of the equilibrium constant does the reaction mixture contain mostly reactants? A. 10^0 B. 10^1 C. 10^(-9) H_2 (g) + I_2 (g) \rightleftharpoons 2HI (g) \ \ \ K_c=69 \ at \ 340^{\circ} C In...
What does work are native plants that naturally grow in the area.Native plants are important to have around since they provide beneficial pollinators(传粉者)like birds,bees and butterflies with seeds and contribute to a hea...
Equal volumes of two gases are allowed to mix. The effect is the same as allowing each gas to expand to twice its volume; the thermal energy in each is now spread over a larger volume. One mole of dihydrogen, H2, is placed in a container and heated to 3000K. Some of the H2 dissoc...
The hydrogen ion does not remain a free proton for long, as it is quickly hydrated by a surrounding un-ionized water molecule. The formation of the resulting ion, the hydronium ion, is represented in equation [2]: [2] H2O + H+⇔ H3O+ ...