NH₃, being a basic gas neutralizes the HNO₃ forming a salt NH₄NO₃
Therefore the correct answer is NH₃ and NH₄NO₃
The solution of which only 32% dissociates to release OH⁻ ions is a weak base. This is because some of the energy is used when the substance reacts with the solution thus some bonds are not broken.
HCl is an acid. This is because it dissociates in water to give H⁺ as the only positively charged ions.
Arrhenius acid increases the concentration of hydrogen ions because it dissociates to release hydrogen ions as the only positively charged ions in the acid. So the answer is TRUE
Arrhenius base dissociates in water to release hydroxide ions as the only negatively charged ions.
NaOH⁺aq⇒Na⁺ ₍aq₎+ OH⁻₍aq₎
Answer:
1.9139 × 10²⁴ atoms Ca
General Formulas and Concepts:
<u>Chemistry - Atomic Structure</u>
- Reading a Periodic Table
- Using Dimensional Analysis
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
Explanation:
<u>Step 1: Define</u>
127.38 g Ca
<u>Step 2: Identify Conversions</u>
Avogadro's Number
Molar Mass of Ca - 40.08 g/mol
<u>Step 3: Convert</u>
<u /> = 1.91388 × 10²⁴ atoms Ca
<u>Step 4: Check</u>
<em>We are given 5 sig figs. Follow sig fig rules and round.</em>
1.91388 × 10²⁴ atoms Ca ≈ 1.9139 × 10²⁴ atoms Ca
D. Gas is the answer ur welcome
Answer:
The covalent bonds within a single water molecule are called hydrogen bonds.
Explanation:
Covalent bonds are the bonds between the atoms within the same water molecule. Hydrogen bonds are the bonds between two water molecules. All molecules have covalent bonds, but only some molecules have hydrogen bonds.
You are given
the density of helium and neon gas mixture which is 0.1562 grams per liters at 40.2degC and 296 torr. You are required to find the mole fraction of neon in this mmixture.
c = dRT/P
c = (0.1562g/L)(0.08206 L-atm/mol-K)(40.2+273)K/296torr(1atm/760torr)
c = 10.31 g/mol
since helium is 4 g/mol
mole fraction of neon = (10.31 - 4) / 10.31 = 0.612