What differentiates the isotopes on an element

Xiang has created an email that contains a number of acronyms and proper nouns. He would like to use Spell Checker quickly without modifying these entries or being notified for successive use of the same word or phrase.

Which reaction is balanced correctly? a; 2C + O2 → CO2, b; CH4 + 2O2 → CO2 + 4H2O, c; C3H8 + 5O2 → 3CO2 + 8H2O, d; C6H12O6 + 6O2 → 6CO2 + 6H2O

All elements in the halogen group have?

When the equation below is properly balanced, what coefficient is in front of KCl? KClO3 - -> KCl + O2 a) 1 b) 2 c) 3 d) 4

Why does claudius plan to poison the drink?

Martha has a large amount of 1.25 M H2SO4 in her lab. She needs 36 grams of H2SO4 for a chemical reaction she wants to perform. How many liters of solution should she use?

A student makes observations when water is added to a blue solution of copper sulfate. The student makes only 1 observation: the solution changes to a lighter shade of blue. Is this an example of a chemical reaction? Explain your reasoning.

When dos the spring tide occur

As ice transforms into steam, Question options: new molecules are formed. the types of atoms are changed. energy is absorbed by the molecules. the mass of the molecules is increased.

Why do chemists consider the periodic table so useful?