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3 years ago

15

Which of these is a physical property? Flammability Malleability Reactivity Toxicity

2 answers:

Zanzabum3 years ago

6 0

Malleability is your answer

the substance is being deformed using pressure, however, the substance is not changed

hope this helps

Viktor [21]3 years ago

3 0

I think the answer is flammability.

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The ________ molecules which form the bilayer region of the cell membrane have hydrophilic regions on the outer surface and hydr

Goshia [24]

Answer:

The answer is: phospholipid molecules

Explanation:

The plasma membrane of a cell is consists of a lipid bilayer. This lipid bilayer, also known as the phospholipid bilayer, is a polar membrane composed of two layers of lipid molecules, usually amphipathic phospholipid molecules.

The amphipathic phospholipid molecules have a hydrophilic phosphate head on the exterior and a hydrophobic tail consisting of fatty acid chain on the interior of the membrane.

8 0

3 years ago

What do atoms make up

kumpel [21]

Atoms make upthey make up oxygen

8 0

3 years ago

Complete the table below by filling in the principal quantum number n and angular momentum quantum number l for each electron su

Alja [10]

Answer:

For 4f the principal quantum number, n is 4 and the angular momentum quantum number l is 3

7s: n = 7 and l = 0

4p: n = 4 and l = 1

7p: n = 7 and l = 1

Explanation:

The principal quantum number gives the energy level of the electron in an atom. It shows the shells in which an electron is in an atom.

if n = 1, 2, 3, 4...; it corresponds to K, L, M, N... shells in an atom

The numerical coefficient of the subshell gives the pricipal quantum number.

for instance in 4f, the principal quantum number, n is 4 because 4 is the coefficient.

The angular momentum quantum number, l gives the energy sublevel or subshell.

Angular momentum quantum number has integral values, l = 0, 1, 2, 3... which correspond to s, p, d, f,.. orbitals.

Thus for 4f the principal quantum number, n is 4 and the angular momentum quantum number l is 3

similarly, for 7s: n = 7 and l = 0

4p: n = 4 and l = 1

7p: n = 7 and l = 0

using similar approach for others

3 0

3 years ago

The most well-known biogenic d-elements

erma4kov [3.2K]

Answer:

i think interstellar dust......

4 0

3 years ago

Two experiments were conducted in a bomb calorimeter. The first one to determine the heat capacity of the calorimeter, the secon

Karo-lina-s [1.5K]

Answer:

The right solution is:

(a) 2459.74 J/degree C

(b) 3271.769 KJ/moles

Explanation:

According to the question,

(a)

The heat capacity of the calorimeter will be:

= $\frac{5682}{24.68-22.37}$

= $\frac{5682}{2.31}$

= $2459.74 \ J/degree \ C$

(b)

The change in temperature will be:

= $26.77-22.37$

= $4.4 \ Degree \ C$

The amount of heat released will be:

= $2459.74\times 4.4$

= $10822 \ Joules$

or,

= $10.822 \ KJ$

Moles of benzene combusted will be:

= $\frac{0.258}{78}$

= $0.00330 \ Moles$

hence,

The heat combustion for 1 mol of benzene will be:

= $\frac{10.822}{0.00330}$

= $3271.769 \ KJ/moles$

6 0

3 years ago