2Mg+O₂⇒2MgO
It can be a combustion reaction, or it can be a combination reaction
Answer:
Correct Option is Option A
A.)It became prey to certain organisms in the river.
Explanation:
CHECK COMPLETE QUESTION BELOW;
An invasive fish species was accidentally introduced into a river. At first, it experienced a sudden surge in its population. Then it experienced a steady decline. Which statements give plausible reasons for this trend?
A.It became prey to certain organisms in the river.
B.It lacked adaptations suitable for that particular ecosystem.
C.It had no predators in its new environment.
D.It had few organisms to compete with for resources.
Aquatic invasive species are species such as fish or invertebrate that is absorbed by new aquatic environment that are differ from their own natural environment.
When Aquatic invasive species found themselves in a new environment, at first they will experience a rapid increase in the number of their population this is because of the lack of natural predators in the new aquatic environment. As a result of this they bring about the alteration of food web structure, they take in charge of available food for the native species and compete with them. As a result of this competition involved there is a decrease in the population.
Therefore, the statements that gives plausible reasons for this trend is that became prey to certain organisms in the river.
Like states of matter? A tree is a solid
The correct answer is C. The formula for calculating concentration of acid and base is : CAVA = CBVB. Where, CA and VA stand for concentration and volume of acid respectively while CBVB represent concentration and volume of base.
Using the values given in the above equation, we have:
CA =12.0 M. VA =?. CB = 6.0 M. VB = 0.500 Litre.
Using the acid - base equation, we have:
12.0 M* VA = 6.0 M * 0.500.
Thus, option C is the correct answer.
Because each element has an exactly defined line emission spectrum, scientists are able to identify them by the color of flame they produce.
