Answer:
2. precipitate is formed
Explanation:
In this reaction barium nitrate and sodium sulfate solutions react to form a barium sulfate precipitate.Barium and sulfate ions will react to give barium sulfate precipitate where as the sodium and nitrate ions are spectator ions.
The net ionic equation after removing unchanged ions from each side of the full ionic equation will be;
Ba²⁺+ SO₄²⁻ → BaSO₄ (s)
3Mg + N₂ → Mg₃N₂
n(Mg) = 12,2g÷24,4g/mol = 0,5mol - limiting reagente.
n(N₂) = 5,16g÷28g/mol = 0,18mol
n(Mg₃N₂):n(Mg) = 1:3, n(Mg₃N₂) = 0,166mol
m(Mg₃N₂) = 0,166mol·101,2g/mol = 16,8g.
%(N)= 2·Ar(N)÷Mr(Mg₃N₂) = 2·14÷101,2 = 27,66% = 0,2766
%(Mg) = 3·Ar(Mg)÷Mr(Mg₃N₂) = 3·24,4÷101,2 = 72,34%
or 100% - 27,66% = 72,34%.
Answer:
Explanation:
1: the sciencetific name of a giant squid is called Architeuthis
2: i dont know I think it says diet but: Giant squid mostly eat deep water fishes and other squids.
3: the range of a Giant squid can be found in oceans around the world at depths of at least 2,950 feet, but their exact range is unknown.
4, characteristics,
1: it has two large fins attached to its mantle.
2: the giant squid have many unique features, such as their ability to produce 'ink' to distract and deter predators.
3:
facts,
1: Their eyes are the largest eyes in the animal kingdom and are about 10 inches
2: Their big eyes help them to spy objects in dark depths where most other animals would see nothing
3: Until 2005, nobody had ever seen a giant squid that was alive.
4: According to the stories, an huge squid would wrap its arms around a whale, causing a terrible fight to start.
5: Giant squid have small fins at the rear of their mantles used for locomotion.
Human IMPACT
Not only can squids and octopuses sense sound, but as it turns out, these and other so-called cephalopods might be harmed by growing noise pollution in our oceans—from sources such as offshore drilling, ship motors, sonar use and pile driving.
Answer:
Gradual refinement
Explanation:
Gradual refinement is the process whereby the System Development Life Cycle goes through a series of development stages, each stage/phase refining the previous one.
