CHEMISTRY HIGH SCHOOL

The name of a water solution of hydrogen fluoride, HF(g), is (A) fluoric acid
(B) fluorous acid
(C) perfluoric acid
(D) hydrofluoric acid
(E) hypofluorous acid

Answers

Answer 1
Answer: the answer is D        asdasd

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Which list of solutions is arranged in order from highest boiling point to lowest boiling point?

Answers

In determining the boiling point of solutions, always take note of the number of ions that will dissociate in the solution. It does not depend on the nature of the substance. The greater the number of ions dissociated, the greater is the boiling point of the solution. 

Is a strong acid
a. NaC₂H₃O₂
b. HC₂H₃O₂
c. KCl
d. NH₃
e. HCl

Answers

E. HCI

Source:
The Internet

How many grams are in 2.3 x 10^-4 moles of Ca3(PO4)2

Answers

Molar mass 

Ca₃(PO₄)₂ = 310 g/mol

1 mole -------------------> 310 g
2.3x10⁻⁴ mole ---------> ?

m = 2.3x10⁻⁴ * 310 / 1

m = 0.0713 g 

hope this helps!

Why does air with higher amounts of water vapor have a lighter density?

Answers

Answer:

moist air is less dense than dry air because water has a lower molecular weight than nitrogen and oxygen

Answer:

Water vapor is a relatively light gas when compared to diatomic Oxygen and diatomic Nitrogen. Thus, when water vapor increases, the amount of Oxygen and Nitrogen decrease per unit volume and thus density decreases because mass is decreasing.

What is the simplest whole-number ratio of atoms in a molecule or formula unit called?

Answers

Answer: Empirical formula

Empirical formula referst to the simplest whole-number ration of atoms in a molecule. A compound's molecular formula can either be the same or multiple of its empirical formula. The structural and molecular formulas are also part of the compound formulas
Hi there! The simplest whole-number ratio of the atoms in a molecule of formula is called the Empirical formula.

When determining an element identity what is the most important Subatomic part to look at?

Answers

Answer: Protons

Explanation: When determining an element identity the most important Subatomic part to look at is the number of protons in the nucleus determines the identity of an atom .
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