Answer:
B. 0.105 atm
Explanation:
Let's consider the following first-order reaction.
N₂O₅ → 2NO₂ + 1/2 O₂
We can find the pressure of N₂O₅ at a certain time t using the following expression.
where,
is the initial pressure
k is the rate constant
Given the half-life (t1/2), we can calculate k using the following expression.
k = ln 2 / t1/2 = ln 2 / 5130 s = 1.351 × 10⁻⁴ s⁻¹
When t = 3.00 h (10,800 s),
Surface waves get pulled in by the tired after the moon has come out the moon has a gravitational pool towards the waves
Explanation:
The pH is a scale used to specify how acidic or basic a water-based solution is. A solution with a pH value less than 7 is acidic while a value of above 7 is basic.
However there are no relationships between pH and molecular size. pH is independent of the molecular size.
Answer:
The correct answer is 101 feet.
Explanation:
To solve this problem, we need to remember the rules of significant figures. Any digit that is not zero is significant, and any zero is significant if it is between two non-zero digits or a trailing zero after the decimal point. Now, let's apply these rules to the options that are given:
1000 yards - Since the zeros are not after the decimal point or between two other digits, they are not significant. This means the only significant digit is 1, so there is only 1 significant digit.
1014 miles - All three of the non-zero digits are significant, and the 0 is significant in this case because it is between two other significant digits. Therefore, this number has 4 significant digits.
101 feet - The two 1's are significant because they are non-zero digits, and the zero is also significant because it is between the two 1's. Therefore, this number has 3 significant digits.
Thus, your answer is 101 feet.
Hope this helps!
Elements in the same group have the same number of valence electrons labelled in Roman numerals.
Also, From left side-Right side of the periodic is in the following order - Alkali Metals, Alkali Earth Metals, Halogens then Noble gases in the Far right of the periodic table