NYS Regents Chemistry

Which compound has both ionic and covalent bonds?

• CH₄

• CO

• CaCl₂

• MgSO₄

When iron is mixed with sulfur, the iron

• becomes a covalent compound

• retains its magnetic properties

• loses its magnetic properties

• transfers its magnetic properties to sulfur

As the elements in Group 2 in the periodic table are considered in order of increasing atomic number, there is a general increase in

• stability

• atomic radius

• electronegativity

• first ionization energy

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NGSS.HS-PS1-1

How would you classify NaCl?

• element

• compound

• heterogeneous mixture

• homogeneous mixture

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NGSS.MS-PS1-1

Which pair of atoms will form ionic bonds?

• S and F

• Mg and O

• F and Cl

• H and Ne

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NGSS.HS-PS1-1

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Under which conditions does a gas behave least like an ideal gas?

• high temperature and low pressure

• high temperature and high pressure

• low temperature and low pressure

• low temperature and high pressure

The data table below shows that as the pressure of a gas sample was changed, the volume of the gas changed. The pressure was measured in atmospheres (atm) and the volume was measured in milliliters (mL).

According to the data table, as the pressure of the gas increases, the volume of the gas:

• decreases

• increases

• remains the same

Which element is a noble gas?

• Helium

• Oxygen

• Nitrogen

• Carbon

Tags

NGSS.HS-PS1-1

What is the chemical formula for table salt?

Which of the following is a chemical change?

• Melting of ice

• Boiling of water

• Rusting of iron

• Breaking of glass

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NGSS.MS-PS1-2

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