Give the charge on the transition metal of each of the following compounds:

Which one of the following classes of organic compound does not contain the carbonyl (C=O) group?A) aldehydesB) carboxylic acids

vredina [299]

Answer: alcohols

Explanation:

The carbonyl group refers to C=O. It is contained in aldehyde, Ketones, carboxylic acids , esters, amides and acyl chlorides. They are not found in alcohols. The alchols are generally ROH. They do not contain any carbon-oxygen unsaturated bond in their structure hence the answer.

3 0

3 years ago

Harriet has an itch in her throat, and she begins to cough. she reaches for a cup of water to drink. which action is carried out

Nikitich [7]

when she reaches for the cup that is somatic nervous system. when she begins to cough

8 0

3 years ago

When the following equation is balanced, the coefficient of Al is ___ Al (s) + H20 (1) - Al(OH)3 (s) + H2 (g) A) 4 B) 1 C) 5 D)

Salsk061 [2.6K]

<u>Answer:</u> The correct answer is Option E.

<u>Explanation:</u>

Every balanced chemical equation follows law of conservation of mass.

This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that total mass on the reactant side must be equal to the total mass on the product side.

The balanced chemical equation for the reaction of aluminium and water follows:

$2Al(s)+6H_2O(l)\rightarrow 2Al(OH)_3(s)+3H_2(g)$

The coefficient of Aluminium is 2.

Hence, the correct answer is Option E.

7 0

3 years ago

Im not doing the math-

BigorU [14]

The average speed of the blocks are 0.36 m/s.
Explanation:
Average speed is defined as the ratio of distance covered per unit time. So if it is said that blocks are pulled to 0.9 m in the right side. This means the blocks cover a distance of 0.9 m from the origin and that distance is covered in 2.5 s. Thus, the average speed can be calculated from the change in speed with respect to time. As at time t = 0 , the speed is also zero, and at time t = 2.5 s , the speed will be
Since, in this case, the speed is equal to the average speed of blocks. So the average speed of the blocks will be 0.36 m/s.

3 0

3 years ago

Read 2 more answers

Indicate the direction of polarity of each of the following covalent bonds by dragging the appropriate delta notation to each en

Damm [24]

Answer:

Polarity is a property of molecules that represents the separation of electrical charges within the molecule, depending on the number and type of bonds it possesses.

The covalent bond between two atoms can be polar or apolar. This depends on the type of atoms that make it up: if the atoms are equal, the bond will be apolar (since no atom attracts electrons more strongly). But, if the atoms are different, the bond will be polarized towards the most electronegative atom, since it will be the one that attracts the electron pair with more force.

For each of the followings covalent bonds the direction of polarity is the one shown in the picture.

We see that in the C-O bond oxygen is more electronegative than carbon. Therefore, there will be a dipole vector oriented towards of the oxygen. We can represent this polarization of the bond by means of an arrow, which always points to the most electronegative atom.

Explanation:

The polarity of a chemical bond occurs when there is an asymmetric distribution of the electronic cloud of the bond around the two atoms that make up that link. This happens when both atoms have different electronegativity.

Each bond composed of different atoms generates a dipole vector, which points to the most electronegative atom.
A molecule will have as many vectors as it has covalent bonds.
If the vectors do not cancel out, then the molecule will be polar.

7 0

4 years ago