Answer:
true
Explanation:
all cells will have plasma membranes
Answer:
2
Explanation:
The balanced chemical equation for this reaction is:
2Na + K2S → 2K + Na2S
Meaning the coefficient for potassium (K) is 2.
Answer: (A) It appears as a reactant in the net chemical reaction
Explanation:
A catalyst is A substance that speed up the chemical reaction without its self being consumed in the reactants or the products.It does this by lowering the activation energy of the reaction by speeding up the rate of reaction.
<span>Lewis structure for 3 nitrogen-containing compounds can be drawn as:
</span>
:N:::N: , ::N:H
For the Lewis Structure for N₃⁻, we place a double bond between the Nitrogen atoms to complete the outer shells on all atoms and we will only use the available valence electrons for the molecule. <span>There are 16 valence electrons available.</span>