Chemistry Vocab

Froggy Jumps

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don't let the frog drown plz
(made by Marharyta Kralya 10th grade fhs)

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Chemistry Vocab


Froggy Jumps Chemistry VocabVersion en ligne don't let the frog drown plz (made by Marharyta Kralya 10th grade fhs) par Marharyta 1 Avogadro's Number represents the number of: a Atoms in one gram of a substance b Molecules in one mole of a substance c Protons in a nucleus 2 Molar mass is defined as: a The mass of one mole of a substance in grams per mole b The mass of one atom of an element in grams c The number of atoms in a given mass of a substance 3 How to name ionic compounds? a Using prefixes for ionic compounds b Not indicating the charge of transition metals c Name the metal first, nonmetal second 4 What does the coefficient in a chemical equation represent? a The number of atoms of each element in a compound b The number of molecules or moles of a substance involved in the reaction c The mass of a substance in grams 5 Which one is a Balanced Equation? a 2H₂ + O₂ → 2H₂O b H₂ + O₂ → H₂O c CH₄ + O₂ → CO₂ + H₂O 6 What is a hydrate in chemistry? a A compound formed by the reaction of a metal with oxygen b A compound that contains water molecules within its structure c A substance that reacts with acid to form salts 7 Which chemical symbol is a mole: a Pa b M c mol 8 Which one is polyatomic ion: a b c 9 What is a word equation? a A formula that represents the atomic structure of reactants and products b Representation of a chemical reaction using the names of the reactants and products c Mathematical equation used to calculate the molar mass of substances involved in a reaction 10 What does the empirical formula represent? a The exact number of atoms in a molecule b The simplest whole-number ratio of elements in a compound c The structural arrangement of atoms in a molecule 11 How to determine the charge of an atom's ions? a By looking at the number of protons b By subtracting the number of protons from neutrons c By comparing the number of protons and electrons 12 What is a skeleton equation? a A chemical equation that is fully balanced b A chemical equation that only shows the reactants and products without coefficients c A reaction where only one element is present 13 What does a coefficient in a chemical equation indicate? a The number of atoms in a molecule b The type of chemical bond present c The number of molecules or moles of a substance in a reaction 14 What happens in a decomposition reaction? a A compound breaks down into two or more simpler substances b Two elements combine to form one compound c Two compounds exchange elements 15 What occurs in a double-replacement reaction? a Two compounds swap elements to form new compounds b One element replaces another in a compound c A single compound breaks down into simpler substances 16 What does a subscript in a chemical formula represent? a The number of molecules in the equation b The number of atoms of an element in a compound c The charge of the atom 17 What is a single-replacement reaction? a A reaction where a single compound forms from two reactants b A reaction where two compounds swap elements c A reaction where one element replaces another in a compound 18 What does the empirical formula show? a The actual molecular formula b The simplest ratio of atoms in a compound c The structural formula of a compound 19 What does percent composition describe? a The percentage of each element in a compound by mass b The percentage of ions in a solution c The number of moles in a substance 20 What happens in a synthesis reaction? a One compound breaks down into simpler substances b Two or more substances combine to form a single compound c An element replaces another in a compound

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Chemistry Vocab

Froggy Jumps

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Chemistry VocabVersion en ligne

par Marharyta

Avogadro's Number represents the number of:

Molar mass is defined as:

How to name ionic compounds?

What does the coefficient in a chemical equation represent?

Which one is a Balanced Equation?

What is a hydrate in chemistry?

Which chemical symbol is a mole:

Which one is polyatomic ion:

What is a word equation?

What does the empirical formula represent?

How to determine the charge of an atom's ions?

What is a skeleton equation?

What does a coefficient in a chemical equation indicate?

What happens in a decomposition reaction?

What occurs in a double-replacement reaction?

What does a subscript in a chemical formula represent?

What is a single-replacement reaction?

What does the empirical formula show?

What does percent composition describe?

What happens in a synthesis reaction?