Commonly Missed Regents Questions

In the wave mechanical model of the atom, an ORBITAL is a region of space where there is:

• a circular path in which electrons are found

• a circular path in which neutrons are found

• a high probability of finding an electron

• a high probability of finding a neutron

What is the charge of the nucleus in an atom of oxygen-17?

• +17

• +8

• 0

• -2

Tags

NGSS.HS-PS1-8

Helium is most likely to behave as an IDEAL GAS when it is under:

• high pressure and high temperature

• high pressure and low temperature

• low pressure and high temperature

• low pressure and low temperature

Both nuclear FISSION and nuclear FUSION:

• produce heavier nuclei from lighter nuclei

• produce lighter nuclei from heavier nuclei

• convert energy into mass

• convert mass into energy

Tags

NGSS.HS-PS1-8

Which pair of formulas represents two compounds that are ELECTROLYTES?

Hint: Acids, bases, and salts are electrolytes.

• HCl and NaOH

• 31

• 18

• 15

• 12

Tags

NGSS.HS-PS1-1

• ionic- metal and nonmetal atoms are bonded together

• ionic- nonmetal atoms are bonded together

• molecular- metal and nonmetal atoms are bonded together

• molecular- nonmetal atoms are bonded together

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

• polar, with an asymmetrical distribution of charge

• polar, with a symmetrical distribution of charge

• nonpolar, with an asymmetrical distribution of charge

• nonpolar, with a symmetrical distribution of charge

Tags

NGSS.HS-PS1-3

Which of the following elements requires the GREATEST amount of energy to remove its outermost electron?

• H

• He

• Li

• Be

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Systems in nature tend to undergo changes toward:

• lower energy and lower entropy

• higher energy and lower entropy

• lower energy and higher entropy

• higher energy and higher entropy

Tags

NGSS.HS-PS3-4