Answer:
HCl 1.Polar 2.soluble highly
O2 1.non-polar 2.highly soluble
CaCl2 1.Ionic 2.insoluble
N2 1.non polar 2.soluble highly
C2h6 1.non polar 2.insoluble
KNO3 1.ionic 2.Soluble
Answer: Option A, B and C
Explanation:
An ecosystem can be defined as the place which can survive on its own. There are various types of biotic and abiotic components available in the ecosystem.
An aquarium, lake and soil in backyard can be a source of ecosystem because they all have biotic and abiotic components in themselves. An aquarium has water, small plants in them. they make food by the help of sunlight and some smaller fishes feed on them.
Soil also has small insects and large plants that live on their own without the need of anything outside that environment.
Answer:
potassium and fluorine both react and form potassium fluoride.
Explanation:
Synthesis reaction:
It is the reaction in which two or more simple substance react to give one or more complex product.
General reaction:
A + B → AB
For example in given potassium and fluorine reaction both react and form potassium fluoride.
Chemical reaction:
K + F₂ → KF
Balanced chemical reaction:
2K + F₂ → 2KF
The oxidation state of potassium is +1 while the oxidation state of fluorine is -1. That's why one atom of potassium combine with one atom fluorine and form potassium fluoride.
A suitable hypothesis might be that temperature affects the rate of chemical modification, and the independent variable is temperature.
<h3>What is a hypothesis?</h3>
A hypothesis is a given explanation about a question that emerged by observing form the real world.
In this case, the dependent variable is the rate of chemical modification because this variable is modified in the experiment.
In conclusion, a suitable hypothesis might be that temperature affects the rate of chemical modification, and the independent variable is temperature.
Learn more about the hypothesis here:
brainly.com/question/11555274
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