Answer:
2H on 3H
Explanation:
it's because Mario eh, eh, eh. now back of and habeba goodnday
The statement that is
untrue concerning a reversible reaction is The reaction always spends equal time in the forward and reverse
direction. The answer is letter B. The reset of the statements are true
concerning the reversible reaction.
To obtain more accurate values of the densities of the pennies:
- more trials can be conducted to reduces the effect of measurement errors
- more care should be taken in taken volume measurements by displacement of water to avoid splashing of water.
<h3>What is density of a substance?</h3>
The density of a substance is the ratio of the mass of the substance to the volume of that substance.
It is a measure of the compactness of the matter in a substance.
The densities of the pennies made before 1982 was 8.7 g/ml
The actual density of pennies made before 1982 is about 8.8 g/mL.
The densities of the pennies made after 1982 was 6.9 g/ml
The actual density of pennies made after 1982 is about 7.2 g/mL.
Due to several random and experimental errors, the values obtained from the experiment are not exactly the same with the accepted values.
To obtain more accurate values:
- more trials can be conducted to reduces the effect of measurement errors
- more care should be taken in taken volume measurements by displacement of water to avoid splashing of water.
In conclusion, the densities varied as as a result of random and experimental errors.
Learn more about density at: brainly.com/question/1354972
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<h3>
Answer:</h3>
3.33 mol H₂O
<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
- Using Dimensional Analysis
<h3>
Explanation:</h3>
<u>Step 1: Define</u>
60.0 g H₂O (Water)
<u>Step 2: Identify Conversions</u>
Molar Mass of H - 1.01 g/mol
Molar Mass of O - 16.00 g/mol
Molar Mass of H₂O - 2(1.01) + 16.00 = 18.02 g/mol
<u>Step 3: Convert</u>
- Set up:
- Multiply:
<u>Step 4: Convert</u>
<em>Follow sig fig rules and round. We are given 3 sig figs.</em>
3.32963 mol H₂O ≈ 3.33 mol H₂O
