Why do two isotopes of an element have the same atomic number but different mass numbers?

In a triprotic acid, which Ka has the lowest value? A) Kat B) Ka2 C) Ka3 D) Kb1

What type of bond is formed between the oxygen atom of one water molecule and the hydrogen atom of another water molecule? what type of bond is formed between the oxygen atom of one water molecule and the hydrogen atom of another water molecule?

Which type of reaction happens when a base is mixed with an acid? question 1 options:?

4. How many atoms are there in 4 moles of sulfur?

Explain the structure and function of DNA. What important roles does the phosphate-sugar backbone, nitrogen bases, complementary strands, and hydrogen bonds play in the structure of DNA?

Which of these is a covalent compound? 1. AICI3 2. CO 3. MgO 4. LiCI

What is a protein used for

Atoms of the halogen family typically steal two electrons from other atoms when they react true or false

Looking at the periodic table, which group consists of elements that will not form an acid when combine with hydrogen? A) radon, neon, calcium B) neon, bromine, barium C) beryllium, iodine, krypton D) lithium, potassium, fluorine

Mixtures have (exact, relative) amounts of the same substances