Answer: Finding out that asbestos is dangerous and limiting its use in building materials
Explanation:
Answer:
The correct option is C.
Explanation:
Nuclear fusion is a radioactive reaction - radioactivity involves the nucleus of an atom NOT the electrons. Nuclear fusion is the process in which two or more light atomic nuclei combine together to form a heavier atomic nucleus with the release of large amount of energy.
An example of a nuclear fusion reaction is shown below
³₁H + ²₁H ⇒ ⁴₂He + ¹₀n + energy
Magnesium chloride
sodium bromide
Magnesium oxide
Nitrogen trifluoride
Aluminium chloride
Rubidium Sulfide
Gallium nitride
<span>Calcium sulfide
</span><span>Lead dioxide
</span>Cobalt(II) oxide
beryllium nitride
REMEMBER BRAINLIEST ANSWER
<h3>
Answer:</h3>
1.69 × 10²⁴ atoms CaCl₂
<h3>
General Formulas and Concepts:</h3>
<u>Math</u>
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Chemistry</u>
<u>Atomic Structure</u>
- Reading a Periodic Table
- Writing Compounds
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
<u>Stoichiometry</u>
<h3>
Explanation:</h3>
<u>Step 1: Define</u>
312 g CaCl₂ (calcium chloride)
<u>Step 2: Identify Conversions</u>
Avogadro's Number
Molar Mass of Ca - 40.08 g/mol
Molar Mass of Cl - 35.45 g/mol
Molar Mass of CaCl₂ - 40.08 + 2(35.45) = 110.98 g/mol
<u>Step 3: Convert</u>
- Set up:
- Divide/Multiply:
<u>Step 4: Check</u>
<em>Follow sig fig rules and round. We are given 3 sig figs.</em>
1.69298 × 10²⁴ atoms CaCl₂ ≈ 1.69 × 10²⁴ atoms CaCl₂