Explanation:
electrons in the highest energy orbitals which are able to contribute to Bonding are valence electrons,....... please mark me brainiest
Answer is: S<span>AE standard that must be referred to on the label of approved HFC-134a refrigerant recycling machines are </span>J1770 and J2788.
<span>J1770 is to establish the specific minimum equipment requirements for recovery or recycling equipment intended for use with R134a.
</span>J2788 is intended to establish requirements for equipment used to recharge HFC-134a.<span />
Answer:
The answer to your question is the second one
Explanation:
AC + B → AB + C
This is not the right answer, the reaction shown here is a single replacement reaction in which one element replaces another element that is part of a compound.
A + B + C → ABC
This is the right answer because in synthesis reactions two or more reactants bound to form only one product.
ABC → A + B + C
This answer is incorrect because this is an example of a decomposition reaction in which one reactant forms two or more products.
AB + CD → AC + BD
This is an example of double replacement reaction in which the cations and anions of the reactants are interchanged.
Answer:
Adaptations
Explanation:
Adaptation is simply defined as a specific characteristics of an animal or plant which can be a body part, body covering, or behavior that helps an animal or plant survive in its environment.
The common types of Adaptations includes Physical adaptation which entails a change to a part of the body and Behavioral adaptation which is simply what an animal does in response to an external stimulus.
Examples of Adaptation includes Hibernation, Camouflage, Mimicry, Whiskers, Beaks and others. In plants, seed colour, hard endocarp, secretions e. t. c helps them survive in their environment.
Well thats because things changed in science. Newtons law of gravity (which was all things that come up must come down) evolved once scientist figured out that in space things float around. Science always evolves weather it's in a year or a day, but if your asking about HOW it evolved, thats something different. Hope I'm helping you!
