Top Mark Questions and Correct Verified Answers
Hesi A2 Chemistry Questions and
Correct Verified Answers
Mixture with uniform density throughout and no distinguishable coponents.
✓ Homogeneous Mixture
Mixture in which the components are readily distinguished.
✓ Heterogeneous Mixture
A change in which the checmical composition of a substance remains the same.
✓ Physical Change
A change in which the chemical bonds are broken and reformed to create a new and
different substance.
✓ Chemical Change
The simplest of substances and is represented by a specific letter or combinations of
letters.
✓ Element
Combinations of eleements in whole number ratios.
✓ Compounds
Top Mark !!!
, Top Mark Questions and Correct Verified Answers
Mass cannot be created or destroyed during a chemical reaction.
✓ Law of Conservation of Mass
The breaking of bonds and the reforming of new bonds to create new chemical
compounds with different chemical forumulas and different chemical properties.
✓ Chemical Reaction
syntehesis, decomposition, combusion, single replacement, double replacement
✓ Five main types of chemical reactions.
Two elements combine to form a product.
✓ Syntehsis Reaction
The breaking of a compound into component parts.
✓ Decomposition Reaction
The reaction of a compound or element with oxygen. In the combusiton of a
hydrocarbon carbon dioxide and water are produced.
✓ Combustion Reaction
Reaction involoving ionic compounds. The reactivity of the ionic compounds
determines whether the reaction will take place or not. Can be single replacement or
double replacement reaction.
Top Mark !!!
Hesi A2 Chemistry Questions and
Correct Verified Answers
Mixture with uniform density throughout and no distinguishable coponents.
✓ Homogeneous Mixture
Mixture in which the components are readily distinguished.
✓ Heterogeneous Mixture
A change in which the checmical composition of a substance remains the same.
✓ Physical Change
A change in which the chemical bonds are broken and reformed to create a new and
different substance.
✓ Chemical Change
The simplest of substances and is represented by a specific letter or combinations of
letters.
✓ Element
Combinations of eleements in whole number ratios.
✓ Compounds
Top Mark !!!
, Top Mark Questions and Correct Verified Answers
Mass cannot be created or destroyed during a chemical reaction.
✓ Law of Conservation of Mass
The breaking of bonds and the reforming of new bonds to create new chemical
compounds with different chemical forumulas and different chemical properties.
✓ Chemical Reaction
syntehesis, decomposition, combusion, single replacement, double replacement
✓ Five main types of chemical reactions.
Two elements combine to form a product.
✓ Syntehsis Reaction
The breaking of a compound into component parts.
✓ Decomposition Reaction
The reaction of a compound or element with oxygen. In the combusiton of a
hydrocarbon carbon dioxide and water are produced.
✓ Combustion Reaction
Reaction involoving ionic compounds. The reactivity of the ionic compounds
determines whether the reaction will take place or not. Can be single replacement or
double replacement reaction.
Top Mark !!!
