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Rasek [7]
3 years ago
9

Help me out please this is hard​

Chemistry
2 answers:
Brums [2.3K]3 years ago
8 0
The one you have selected is correct. CO is a compound because it contains more than one element.
Maurinko [17]3 years ago
7 0
I’m not sure i’m guessing correct
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Which of the following are characteristics of vertebrates?
djverab [1.8K]
<span><u><em>Answer:</em></u>
All of the above

<u><em>Explanation:</em></u>
Vertebrates are a class of creatures falling under kingdom "<u>Animalia</u>" that are characterized by the presence of an internal skeleton composed of bones.

<u>Vertebrates are characterized by the following:</u>
1- presence of internal skeleton
2- developed brain
3- the presence of an advanced nervous system connected to the brain
4- presence of muscles that allow movement
5- protective skin
6- circulation of blood in the bodies in the vessels

Comparing the mentioned characteristics with the options given, we will find that the most suitable answer is: <u>"all of the above"</u>.

Hope this helps :)</span>
5 0
3 years ago
Read 2 more answers
ASAP!
Sav [38]

When a radioactive isotope releases an alpha particle, the atomic number of the atom is decreased by four.

So, the correct answer is B.

Hope this helps,

Davinia.

4 0
2 years ago
How many mL of 0.013 M potassium hydroxide are required to reach the equivalence point in the titration of 75 mL 0.166 M hydrocy
umka21 [38]

Answer:

957.7mL

Explanation:

Using the formula below;

CaVa = CbVb

Where;

Ca = concentration of acid (M)

Va = volume of acid (mL)

Cb = concentration of base (M)

Vb = volume of base (mL)

According to the information provided in this question:

Ca = 0.166 M

Cb = 0.013 M

Va = 75mL

Vb = ?

Using CaVa = CbVb

0.166 × 75 = 0.013 × Vb

12.45 = 0.013Vb

Vb =12.45/0.013

Vb = 957.7mL

6 0
2 years ago
What is the name for Chlorines anion?
frez [133]
The chloride ion /ˈklɔːraɪd/ is the anion (negatively charged ion) Cl−
8 0
3 years ago
Which half reaction correctly describes the reduction that is taking place
pickupchik [31]
<h2>Answer:</h2>

The correct answer is the option A which is: Cl2 + 2e- → 2Cl-

<h3>Explanation:</h3>

<em><u>Reduction is the gain of electrons and resulting in neutral or negative ions.</u></em>

<em><u>It is also the gain of hydrogen and release of oxygen ions.</u></em>

  • According to first most definition, option A describes the reduction.
  • Option B is incomplete reaction.
  • While C and D are oxidation reactions.
6 0
3 years ago
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