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
ZanzabumX [31]
3 years ago
15

Which of these are common to all mammals?

Chemistry
1 answer:
kow [346]3 years ago
8 0
The answer is D kidneys liver skeletal structure
You might be interested in
Sodium tripolyphosphate is used in detergents to make them effective in hard water. calculate the oxidation number of phosphorus
Fed [463]
Step 1:
           
Write molecular Formula,

                                                Na₅P₃O₁₀
Step 2:
         
Assign Oxidation number to Na (which is +1) and O (which is -2), and X (unknown) for P.
                                               (+1)₅ + (X)₃ + (-2)₁₀  = 0

Zero means overall charge on molecule is zero (Neutral).

Step 3:
           
Now solve for X,
                                               (+5) + (X ÷ 3) + (-20)  =  0

                                                X ÷ 3  =  -5 + 20
                                
                                                X ÷ 3  =  +15

                                                      X  =  +15 ÷ 3

                                                      X  =  +5

Result:
           Oxidation number of P is +5.                                 
3 0
3 years ago
Figure 2 shows what happens to the electrons in the outer shells when a sodium atom reacts with a fluorine atom.
QveST [7]

Sodium reacts with fluorine to make a covalent bond between them.  A covalent bond is formed when there is a mutual sharing of electrons between the two adjacent atoms.

Here, Sodium is metal and fluorine is non-metal. So, the bond between them may be an ionic bond, but as the Sodium has one valence electron and fluorine is highly electronegative. Sodium wants to lose electrons and fluorine wants to gain electrons to form a chemical bond. Therefore, the sodium donates its valence electron to fluorine, forms a cation, and fluorine accepts the electron and forms an anion and they distribute the difference in the charge between them.

So, we can say that when sodium and fluorine react to form sodium fluoride with a covalent bond.

Learn more about covalent bonds here:

brainly.com/question/12732708

#SPJ10

4 0
2 years ago
Is a bowling ball made of matter?
Cerrena [4.2K]

Answer:

Yes a bowling ball made of matter.

Explanation:

5 0
3 years ago
A 4.000 g sample of an unknown metal, M, was completely burned in excess O2 to yield 0.02225 mol of the metal oxide, M2O3. What
Solnce55 [7]
4X + 3O₂ = 2X₂O₃

n(X₂O₃)=0.02225 mol
m(X)=4.000 g
x - the molar mass of metal

m(X)/4x=n(X₂O₃)/2

x=m(X)/{2n(X₂O₃)}

x=4.000/{2*0.02225)=89.89 g/mol

X=Y (yttrium)



7 0
4 years ago
How many molecules of SO2 are in 2.45 g of SO2? (molar mass=64.06 g/mol). (Hint: you need to use your entire stoichiometry flow
Reil [10]
9.45 x10^25 molecules
8 0
3 years ago
Other questions:
  • What are two types of chemical composition that characterize minerals?
    12·1 answer
  • Trevor dissolves sodium hydroxide pellets in a beaker of water at room temperature, and notes that the beaker becomes warm. Whic
    11·1 answer
  • which is the best example of rotational motion? A. The wheel spins as long as the hamster keeps running. B. The tornado left a t
    15·2 answers
  • In the reaction, 2Na (s) + 2H2O (l) → 2NaOH (aq) + H2 (g), which of the reactants or products is in the gas phase?
    10·1 answer
  • What is special about nitrogen and what is its function in the atmosphere
    14·1 answer
  • If you have 2 moles of sugar molecules,<br> you will have how many sugar molecules?
    5·1 answer
  • Help me please!!!!!!!
    13·1 answer
  • Alcohol or acid will travel the furthest up the paper chromatography? pls help thanks and explain
    14·1 answer
  • 3. Humans discovered how to use fire and tools. How was this knowledge passed along to younger generations?
    13·1 answer
  • Which reaction is an oxidation reaction?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!