1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Serjik [45]
3 years ago
15

5. Identify each of the following as an element, a mixture, or a compound.

Chemistry
1 answer:
VashaNatasha [74]3 years ago
4 0

Answer:

Aluminum foil ~ element

Air ~ mixture

Water ~ compound

Salt Water ~ mixture

Copper Wire ~ element

Steel ~ element

You might be interested in
Abbreviated electron configuration for tellurium
Zinaida [17]

Answer:

The ground state electron configuration of ground state gaseous neutral tellurium is [Kr]. 4d10.

4 0
2 years ago
BRANILEST IF RIGHT <br><br> WAVE A OR B
Serhud [2]
I think it’s A but I’m not sure.
3 0
3 years ago
Read 2 more answers
An atom's nucleus has 92 protons and its mass number is 235. how many neutrons are in the nucleus? what is the name of the atom
STALIN [3.7K]
The mass number is the sum of the protons and neutrons in an atom. 235-92 = 143 neutrons.
Element 92 is Uranium.

Uranium is also the highest atomic number element which exists in nature. All of the rest above element 92 only exist nuclear high-energy reactions (the transuranium elements), and most experience nuclear decay very quickly and form other elements with fewer protons. 
6 0
3 years ago
Examples of nitrogens unreactivity
REY [17]
WATCH OUT BUDDY:<span>reactivity....Spelling mistake.

ANSWER:
</span>For example<span>, "air" sometimes comes bubbling out of the ground near oil wells. Today ... For </span>example, nitric oxide combines with oxygen and water in the atmosphere to make nitric acid. When it ....Nitrogen's<span> role in the Oklahoma City bombing.</span>
8 0
3 years ago
Select the correct hybridization for the central atom based on the electron geometry cocl2 (carbon is the central atom).
Rainbow [258]
In this compound (Phosgene) the central atom (carbon is Sp² Hybridized).

Sp, Sp² and Sp³ can be calculated very simply by doing three steps, 

Step 1:
           Assume triple bond and double bond as one bond and assign s or p to it. In this example carbon double bond oxygen is considered once and let suppose it is s. Now we are having our s.

Step 2:
          Count lone pair of electron, each lone pair counts for s and p. In this case there is no lone pair of electron on carbon, so not included.

Step 3:
          Count single bonds for s and p. As we have already assigned s to the double bond, now one p for one single bond, and other p for the other single bond.

Result:
          So, we counted 1 s for double bond, 1 p for one single and other p for second single bond. As a whole we got,

                                                       Sp²

Practice:
You can practice for hybridization of Oxygen in this molecule. Oxygen has 2 lone pair of electrons. (Hint: Sp² Hybridization)
7 0
3 years ago
Other questions:
  • Calculate the root mean square velocity of F2,Cl2, and Br2 at 304 K .
    6·1 answer
  • What does the position of an element in the periodic table tell you?
    11·1 answer
  • What is the pOH of a 0.0072 M solution of sodium hydroxide? pOH=?
    8·2 answers
  • 0.378 mL + 42.3 mL - 1.5833 mL
    7·1 answer
  • How are they related "atom" "molecule"
    10·2 answers
  • What is a caterpillar
    9·2 answers
  • Answer this ......,..,.,.,.,.,.,.,..,.,.,.,.,.z.z.,.,.,.,..,.,.,.,.,.,.,.,.,..,​
    9·1 answer
  • What Energy transformation occurs when gasoline burns in an automobile
    12·2 answers
  • Can anyone here help me with chemistry
    11·1 answer
  • Which of the following items represents a chemical change?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!