HESI A2 CHEMISTRY V1, V2 EXAM QUESTIONS

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HESI A2 CHEMISTRY (V1, V2) EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

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-Guarantee passing score -100 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Oxygen, nitrogen, fluorine

Answer:

What are in diatomic molecules?Question 2: Reaction between a more active metal reacting with an ionic compound containing a less active metal to produce a new compound ex. copper wire reacting with aqueous silver nitrate.

Answer:

Single Replacement Reaction

Question 3: Stage

Answer:

The microscope slide is placed here?

Question 4: Energy cannot be created or destroyed, it simply changes form.

Answer:

What does the law of conservation of energy state?

Question 5: 56.8 kg

Answer:

Individual who weight 125 lbs is how much in kg?Question 6: The amount of heat necessary to raise the temperature of 1g of water by 1 degree celsius.

Answer:

Calorie

Question 7: Periods

Answer:

What are the rows called in the periodic table?Question 8: Mixture with uniform density throughout and no distinguishable coponents.

Answer:

Homogeneous Mixture

Question 9: The number of protons in a given element.

Answer:

Atomic Number

Question 10: Neutrons

Answer:

An isotope is the same number of protons, but different number of

Question 11: Solid, liquid, and gas

Answer:

Water found of the earth?

Question 12: What group has a +2 charge

Answer:

IIA

Question 13: Protons + neutrons

Answer:

How do you find atomic mass

Question 14: Gas

Answer:

What matter changes in volume with change in temperature and pressure?

Question 15: Density of an object realtive to water

Answer:

Specific Gravity

Question 16: Water is not a good conductor

Answer:

What is true about water Question 17: A change in which the chemical bonds are broken and reformed to create a new and different substance.

Answer:

Chemical Change

Question 18: 1 => 6.1

Answer:

What value is more acidic?

Question 19: Form of energy, measured in calories

Answer:

Heat

Question 20: +2

Answer:

What is the oxidation reaction number of Mg

Question 21: A chemical bond resulting from the sharing of electrons between two atoms.

Answer:

Covalent Bond

Question 22: Two elements combine to form a product.

Answer:

Syntehsis Reaction

Question 23: -2

Answer:

What is the charge of oxygen?

Question 24: What group has a +1 charge

Answer:

IA

Question 25: Hydrogen donors

Answer:

What are acids?

Question 26: divide by molar mass

Answer:

Grams to Moles conversion?

Question 27: Ionic bonding

Answer:

What kind of bonding occurs when opposite charges are attracted to one another?

Question 28: The two weakest intermolecular attractions (dispersion and dipole)

Answer:

What are van der wall forces