Physical Science Standards Mastery Quiz

What information does the atomic number of an element provide?

• Number of neutrons

• Number of protons

• Atomic mass

• Number of isotopes

Which of the following elements is most reactive?

• Neon (Ne)

• Fluorine (F)

• Carbon (C)

• Nitrogen (N)

What is the correct chemical formula for calcium chloride?

• CaCl

• CaCl₂

• Ca₂Cl

• Ca₂Cl₂

Which of the following best describes a balanced chemical equation?

• The number of atoms of each element is equal on both sides

• The total mass is greater on the product side

• The number of molecules is the same on both sides

• The equation contains only one reactant

Tags

NGSS.MS-PS1-5

What type of reaction is represented by the equation: 2H₂ + O₂ → 2H₂O?

• Decomposition

• Single replacement

• Synthesis

• Combustion

What does the subscript “2” in H₂O indicate?

• Two hydrogen atoms are bonded to one oxygen atom

• Two oxygen atoms are bonded to one hydrogen atom

• The molecule has a charge of 2

• The molecule contains two water molecules

Tags

NGSS.MS-PS1-1

Which of the following is a correct interpretation of the law of conservation of mass?

• Mass can be created in a chemical reaction

• The total mass of reactants equals the total mass of products

• Mass is lost as heat in a reaction

• Mass is only conserved in physical changes

Tags

NGSS.MS-PS1-5

What is the empirical formula of C₆H₁₂O₆?

• C₆H₁₂O₆

• CH₂O

• C₂H₄O₂

• C₃H₆O₃

Tags

NGSS.MS-PS1-1

Which of the following best explains why elements in the same group have similar chemical properties?

• They have the same number of protons

• They have the same atomic mass

• They have the same number of valence electrons

• They are in the same period

What is the purpose of formative assessments in science?

• To provide ongoing feedback

• To avoid assessing students

• To make lessons complex

• To focus on final exams