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antoniya [11.8K]
3 years ago
10

Earth is unique because it is the _____.

Chemistry
2 answers:
Sholpan [36]3 years ago
6 0

Answer: B. only known planet to support life (happy to help)

Explanation:

astraxan [27]3 years ago
5 0

Answer:

B. The only planet to support life.

Explanation:

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.266 mol CO plus .524 Mol H2 gives how many moles of CH3OH
Readme [11.4K]

Explanation:

Carbon monoxide and hydrogen gas reacts together to form methanol:

CO + 2H2 => CH3OH

Since 0.266mol * 2 = 0.532mol > 0.524mol, the limiting reactant here is hydrogen and therefore there will be 0.524mol / 2 = 0.262mol of methanol.

3 0
3 years ago
PH3, explain why there is a partial positive on hydrogen and partial negative on phosphorus.
Paraphin [41]

Answer:

Phosphorus is more electronegative than hydrogen

Explanation:

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons towards itself thereby making a molecule to be polar. The Pauling scale is the most commonly used to measure electronegativity. Fluorine (the most electronegative element) is assigned a value of 4.0 on the Pauling's scale, and values range down to caesium and francium which are the least electronegative elements.

Electronegativity increases from left to right across the periodic table (across the period) hence, phosphorus is far more electronegative than hydrogen. Being more electronegative than hydrogen, phosphorus attracts the bonding electron pair of the P-H bond closer to itself than hydrogen. Since the electrons of the bond are closer to phosphorus than hydrogen, the phosphorus atom acquires a partial negative charge while the hydrogen atom acquires a partial positive charge.

3 0
3 years ago
Which is a postulate of the kinetic molecular theory of gases? Despite being very small, the volume occupied by the individual p
Paladinen [302]

Answer:

The particles that compose a gas are so small compared to the distances between them that the volume of the individual particles can be assumed to be negligible.  

Explanation:

This is a postulate of the Kinetic Molecular Theory.

A is wrong. KMT assumes the that the volume of the particles is negligible.

B is wrong. KMT assumes that the distance between the particles is muck greater than their size.

D is wrong. It takes the large distances as a fact. KMT uses this as an assumption.

7 0
3 years ago
Read 2 more answers
Cellular respiration happens in the cell's _____.
irina1246 [14]

Answer:

mitochondria,

Explanation:

Cellular respiration occurs inside cells; specifically, cellular respiration happens inside the mitochondria, the powerhouse of the cell. Cellular respiration is a critical function by which cells release energy for various cellular activities like locomotion, biosynthesis, and even the transportation of molecules between membranes.

5 0
3 years ago
Read 2 more answers
Draw the structure of the major organic product isolated from the reaction of 3-hexyne with hydrogen (1 mol), Lindlar palladium.
ohaa [14]

Answer:

See explanation and image attached

Explanation:

When 1 mole of hydrogen is added to 3-hexyne, the addition occurs on the same face or side of the triple bond to yield cis-2-hexene in the presence of lindlar catalyst which prevents further hydrogenation. This is known as syn addition.

The syn addition is achieved because the hydrogen molecule is first adsorbed on the surface of the palladium metal and is subsequently attached to the same face of the triple bond in 3-hexyne as shown in the image attached to this answer.

6 0
2 years ago
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