Atoms, elements, compounds, and chemical bonds
Bond between O and Mg
Ionic bond
Water is polar or non polar?
polar
The chemical reaction: CH₄ + 2 O₂ → CO₂ + 2 H₂O
combustion reaction
What is the pH ranges for acids, bases, and neutral.
acid-1-6.9
neutral 7
base 7.1-14
A biochemical reaction?
respiration
When an atom loses 1 electron, what is the resulting charge?
+1
What is Cohesion?
Water molecules bonding to other water molecules.
The chemical reaction: Pb + O₂ → PbO₂ is a:
synthesis reaction
When hydrogen ions are released into a solution, it creates an ___________solution,
acidic
Which of the following correctly distinguishes between inorganic and organic molecules?
Organic molecules contain carbon, while inorganic molecules do not.
How many valence electrons does carbon have?
4
What property of water allows it to stick to surfaces and move against gravity?
capillary action
what is a coefficient and subscript?
coefficient-placed in front and tells how many of each atoms or molecules.
subscript-small number on the right of the element, says how many atoms of each element.
What is the role of ATP in cells?
Provides energy for cellular processes.
H2 2.1-2.1=0 is what kind of bond
Covalent
What is the difference between hydrophobic and hydrophilic?
What does an enzyme do?
proteins that help speed up metabolism, or the chemical reactions in our bodies
what is the pH of stomach acid?
2
Which of the following is true about the role of amino acids in cells?
Are the main building blocks of life.
What is a compound?
Composed of two or more separate elements;
A slight amount of pressure exerted at the surface of water is known as?
surface tension
The chemical reaction: Ca(OH)₂ + H₂SO₄ → CaSO₄ + 2 H₂O is a:
double displacement
resists changes in pH.
Which of the following is true about the role of nucleic acids in cells?
Store genetic information.