Answer:
The system and the surroundings together make up the universe. There are three types of systems in thermodynamics: open, closed, and isolated. An open system can exchange both energy and matter with its surroundings. ... A closed system, on the other hand, can exchange only energy with its surroundings, not matter.
Answer:
10.5grams
Explanation:
Molarity = number of moles (n)/ volume (V)
According to this question;
Volume = 750 mL = 750/1000 = 0.75L
Molarity = 0.35M
number of moles (n) = molarity × volume
n = 0.35 × 0.75
n = 0.2625mol
Using mole = mass/molar mass
Molar Mass of NaOH = 23 + 16 + 1
= 40g/mol
mole = mass/molar mass
0.2625 = mass/40
mass = 10.5grams
10.5 grams are needed to prepare 0.75L of a 0.35 M solution of NaOH.
1. 2.33%
2. 3.33%
3. 8.29%
4. 2.1%
5. 26%
6. 39%
7. 30%
8. 43.7%
How I got these are include in the photo below. Hope this helps!
Most definitely! Consider bacteria in a petri dish. Organisms need nutrition to survive, and when overcrowding is an issue (which by definition means that there is an insufficient amount of space/resources for the current population), organisms cannot survive and reproduce.