Answer:
CH4<HClO2<HClO<H2O<HCl
Explanation:
In ranking the compounds on the basis of increasing positive charge of hydrogen, we must consider the relative oxidation numbers of the various elements in the compounds.
Methane contains a nonpolar covalent bond, HClO2 contains a chlorine atom in +3 oxidation state, HClO contains a chlorine atom in +1 oxidation state. The more the positive charge on the halogen atom the lesser the magnitude of positive charge on the hydrogen atom. Between water and HCl, chlorine is more electro negative hence HCl will contain a more positively charged hydrogen atom than water.
Answer:
aluminum is highly reactive
Answer:
I believe it will still be 4.00
Explanation:
Answer:
b. independent/manipulated variable
Explanation:
Independent/manipulated variable - refers to the variable that is changed by the scientist or an experimenter. Only one variable that is independent is required to ensure a fair test in an excellent experiment. As the independent variable is being changed by an experimenter or scientist, data is being recorded simultaneously as they are collected.
Answer:
1.20 × 10²⁴ atoms He
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>
8.00 g He
<u>Step 2: Identify Conversions</u>
Avogadro's Number
Molar Mass of He - 4.00 g/mol
<u>Step 3: Convert</u>
<u />
= 1.2044 × 10²⁴ atoms He
<u>Step 4: Check</u>
<em>We are given 3 sig figs. Follow sig fig rules and round.</em>
1.2044 × 10²⁴ atoms He ≈ 1.20 × 10²⁴ atoms He
