The answer is A (The ability to react with oxygen)
Answer:
Backbone
Explanation:
Organisms that have backbones are known as vertebrates, while the ones without a backbone are classified as invertebrates.
Answer:

Explanation:
For this question we have to start with the <u>reaction</u>:

Now, we can<u> balance the reaction</u>, so:

With this in mind, we have to start with the amount of
. The first step is to <u>convert from grams to moles</u>. For this, we need to find the molar mass of
. If we check the periodic table we will find the atomic masses for Ag and H; H: 1 g/mol and A: 32 g/mol, so:
(1*2)+ (32*1) = 34 g/mol.
Now we can <u>calculate the moles</u> of
:

With the moles of
we can calculate the moles of
if we check the <u>molar ratio in the balanced equation</u>,
, so:

With the molar mass of
we can <u>convert from moles to grams</u> (Ag: 107.86 g/mol, S: 32 g/mol), so:
(107.86*1)+(32*2)=247.80 g/mol

I hope it helps!
Answer:
the above
Explanation:
heat the metal until it melts
react it with o2
stretch it
react it with acid
The answer is lungs. Hope this helps!