<h3>
Answer:</h3>
<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>
<u>Stoichiometry</u>
- Using Dimensional Analysis
- Analyzing Reactions RxN
<h3>
Explanation:</h3>
<u>Step 1: Define</u>
[RxN - Balanced] 2C + O₂ → 2CO₂
[Given] 0.25 moles O₂
[Solve] moles CO₂
<u>Step 2: Identify Conversions</u>
[RxN] 1 mol O₂ → 2 mol CO₂
<u>Step 3: Stoichiometry</u>
- [DA] Set up:
- [DA] Multiply/Divide [Cancel out units]:
D.Thermal expansion can cause the concrete to expand and crack.
Explanation:
Steel joints are often used in sections of concrete bridges because if concrete is used, thermal expansion can cause it to expand and in the process cracks.
- During a very hot day, as the temperature rises, materials begins to expand.
- Concrete does not have good expansivity
- When it expands, the structure breaks and cracks down.
- When metals like steel expands, when cooling they return back to their original position.
- this is why steel joints are added to bridges.
learn more:
Temperature and heat brainly.com/question/914750
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Answer: Carbon and chlorine atoms, have a blessed day! :)
it's 500kg
Explanation:
I did this I hope this helps