Answer:
Option (A)
Explanation:
The temperate forest usually covers the tropical and the taiga region. The trees in this forest region experience all the four seasons namely summer, autumn, winter and spring. It comprises approximately 25% of the total forest-covered region on earth. The leaves of these trees change color during the autumn season, which eventually falls off during the winter season, and again, new leaves grow back during the spring season. This enables the plants to survive and go through the cold temperature in the winter.
Thus, the correct answer is option (A).
Answer:
2 g/mL
Explanation:
Density can be calculated using the ratio:
Density = mass (g) / volume (mL)
Since you have been given both the mass and volume of the liquid, you can calculate the density.
Mass = 6 grams (g)
Volume = 3 milliliters (mL)
Density = mass / volume
Density = 6 g / 3 mL
Density = 2 g/mL
Answer:
b and c
Explanation:
the problem was solved through the experiment and tested
<span>They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). These are all the options.</span>
Explanation:
Molecules which are either polar in nature or contain a polar covalent bond are able to dissolve in water. This is because like dissolves like.
For example, 
is a polar covalent compound and when it is dissolved in water then its reaction is as follows.
This shows that a chemical reaction will take place when is dissolved in water.
Also, HI is a polar covalent compound and it will readily dissolve in water as hydrogen iodide (HI) is a polar covalent molecule.
On the other hand, 
, 
, and 
does not dissolve in water as all of these are non-polar covalent compounds.
Thus, we can conclude that the gas most likely to dissolve in water as a result of chemical reaction is and the gas most likely to dissolve in water because of strong intermolecular interactions is HI.
