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KatRina [158]
2 years ago
12

Dose your heart muscle get tired? Yes or no.

Chemistry
1 answer:
WARRIOR [948]2 years ago
5 0

Answer:

<em>no</em><em> </em>

Explanation:

our heart muscles never get tired, because it has to pump blood in our body 72 times a minute, it is made of special cardiac muscles which helps it to perform it's function without getting tired ....

<em>i</em><em> </em><em>hope</em><em> </em><em>it</em><em> </em><em>helped</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

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Which phrase best describes the bond in H2?
Gala2k [10]

Answer and Explanation:

Two hydrogen atoms, each containing one electron, approach each other in the formation of a molecule of hydrogen. Each atom needs a total of two electrons to fill their outermost energy level and make them stable. The best choice is to share their single electrons. Hence, a pair of bonding electrons is shared between the hydrogen atoms in the molecules.

This constitutes a single covalent bond. Hence, the correct option is B)

6 0
3 years ago
Read 2 more answers
Which 2 elements when combined NOT alloys?
Volgvan

Answer:

Oxygen and sulfur

Explanation:

Alloys consist of metals fused together sometimes with additional components, such as carbon, to prevent metals from corrosion.

Oxygen and sulfur are two compounds consisting of non-metal atoms, O and S. Combining oxygen with sulfur would actually produce sulfur dioxide, a gas, in contrast to a metallic substance that is fused with some other metal or carbon.

That's the reason why combination of sulfur and oxygen wouldn't produce an alloy: it would produce a gas.

6 0
3 years ago
In what way(s) is(are) the structure of water similar to that of CHCl3? In what way is the structure of water different from tha
Lapatulllka [165]

Answer:

See explanation below

Explanation:

In both cases the central atoms, C in CHCl₃ and O in H₂O, are sp³ hybridized .

Since they are sp³ hybridized we predict an angle  between the  H-C-Cl and H-O-H of 109.5 º ( tetrahedral ), but two of the sp³ orbitals in water are occupied by lone pairs.

These lone pairs do excercise more repulsion ( need more room ) than the bonds oxygen is making with hydrogen.

As a consequence of this repulsion the angles H-O-H are less than the predicted 109.5º in tetrahedra. ( Actually is 104.5 º)

5 0
2 years ago
5. Which material has the highest thermal conductivity? Which material has the highest electrical conductivity? Explain why ther
Afina-wow [57]

Answer:

Sliver

Explanation:

Silver has the highest electrical conductivity of all metals. :)

6 0
2 years ago
Perform the following calculations and then determine the correct answer following the significant figure rules: 8.7 g + 15.43 g
Sidana [21]
43.13 g is the answer
5 0
3 years ago
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