CHEMISTRY HIGH SCHOOL

PLEASE HELP ASAP!!THANKS! Balance the following and label what type of reaction is taking place:
C5H9O + O2? CO2 + H2O

Answers

Answer 1
Answer:

Balanced chemical reaction:

4C₅H₉O + 27O₂ → 20CO₂ + 18H₂O.

According to principle of mass conservation, number of atoms must be equal on both side of chemical reaction.

Type of reaction is combustion.

Combustion is reaction with oxygen.

Organic compound reacts with oxygen and produce carbon dioxide and water.


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COLLEGE

O2(g) effuses at a rate that is ______ times that of br2(g) under the same conditions.

Answers

O2 is effuses at a rate that is 3.2 times faster than Br2. This is because the quotient of the molar mass of br2 and molar mass of O2 is ten. The square root of 10 is 3.2

Answer:

Oxygen gas effuses at a rate that is 2.236 times that of bromine gas under the same conditions.

Explanation:

Graham's Law:

This law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows the equation:

We are given:

Molar mass of oxygen gas= 32 g/mol

Molar mass of bromine gas = 160 g/mol

By taking their ratio, we get:

Oxygen gas effuses at a rate that is 2.236 times that of bromine gas under the same conditions.

HIGH SCHOOL

The various components of crude oil are separated in a refinery based on differences in

Answers

Differences in boiling points.
HIGH SCHOOL

How many formula units of sodium acetate are in 0.87 moles of sodium acetate

Answers

Answer : The number of formula units of sodium acetate is

Explanation :

Formula units : It is defined as lowest whole number ratio of ions in an ionic compound. It is calculate by multiplying the number of moles by Avogadro's number which is

We are given:

Number of moles of sodium acetate = 0.87 moles

Number of formula units =

Hence, the number of formula units of sodium acetate is

5.2 x 10^23 formula units are in 0.87 moles of sodium acetate. 
COLLEGE

What is the nucleus of a comet thought to be made of?

Answers

The nucleus of a comet is made up of rock, dust, and frozen gasses
hope this helps:)
A series of different rocks, gases and other compounds.
MIDDLE SCHOOL

_________ heat is the amount of heat required to change the temperature of 1 gram of a substance by 1 degree Celsius​

Answers

Answer:

Specific heat capacity is the amount of heat required to change the temperature of 1 gram of a substance by 1 degree Celsius​

Explanation:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

The substances with higher value of specific heat capacity require more heat to raise the temperature by one degree as compared the substances having low value of specific heat capacity.For example,

The specific heat capacity of oil is 1.57 j/g. K and for water is 4.18 j/g.K. So, water take a time to increase its temperature by one degree by absorbing more heat while oil will heat up faster by absorbing less amount of heat.

Consider that both oil and water have same mass of 5g and change in temperature is 15 K. Thus amount of heat thy absorbed to raise the temperature is,

For oil:

Q = m.c. ΔT

Q = 5 g× 1.67 j/g K × 15 K

Q = 125.25 j

For water:

Q = m.c. ΔT

Q = 5 g× 4.18 j/g K × 15 K

Q = 313.5 j

we can observe that water require more heat which is 313.5 j to increase its temperature.

HIGH SCHOOL

The number of nucleons in an atom is the atom's (atomic, mass) number.

Answers

Answer: It determines the mass number of the atom.

Explanation:

Nucleons are the subatomic particles that are present in nucleus of an atom. The particles which are present in the nucleus of an atom are protons and neutrons.

Mass number is defined as the sum of number of protons and number of neutrons. It is represented as A.

A = Number of neutrons + Number of protons

Atomic number is defined as the number of protons or number of electrons that are present in an atom. It is represented as Z.

Z = Number of protons = Number of electrons

From the above information, we conclude that the number of nucleons determines the mass number of an atom.

The number of neutrons in an atom is the number of particles present in its nucleus.
The atomic number is the number of protons whereas the mass number is the number of protons and number of neutrons together
This implies that the number of neutrons is the atom's mass number
HIGH SCHOOL

Sugar molecules can combine with one another to form large molecules called A. proteins. B. starches. C. enzymes. D. lipids.

Answers

Answer:

B. Starches

Explanation:

The sugar molecules are monosaccharides, they are defined as compounds derived from aldehydes or ketones, contain at least three carbon atoms in their structure and constitute the structural basis of more complex carbohydrates. They are formed by atoms of C, H and O, and cannot undergo hydrolysis processes to decompose into simpler units. There are different monosaccharide structures; In the case of sugar, it is formed by the structure called GLUCOSE.

Polysaccharides are formed by the union of hundreds of monosaccharides. In the case of glucose (sugar) they join together to form starch.

In the case of proteins and enzymes, these are also formed by the combination of smaller structures, but the same are amino acids, they are formed by atoms of C, H, O and also N, unlike monosaccharides . In addition they biologically fulfill other functions in organisms. Enzymes are proteins that fulfill the function of catalyst in biochemical reactions (this means that it helps to produce these reactions).

Lipids are structures that contain C, H and to a lesser extent O. The difference with the previous ones is that they do not join together to form more complex structures. Nor are there simpler structures than lipids to form them.

This is why, when the sugar molecules (which are glucose molecules) are combined with each other, they form much larger molecules that are called starches.

COLLEGE

Chemistry to make tomato soup, you add one can of water to the condensed soup. why is this dilution?

Answers

Dilution refers to decreasing the ratio of total solution to the reference solution by the addition of other liquids. By adding water to tomato soup, the balance of “tomato soup” molecules decreases from 100% tomato soup, to eventually 1:1 TS and Water (50%), and so on. Chemically, you can observe this as decreasing the concentration of tomato soup in this solution.
COLLEGE

The reaction in an experiment is the Wittig synthesis of 1,4-Diphenyl-1,3-Butadiene, and one of the questions is: In the reaction for this experiment, carbon is nucleophilic. Why is carbon not ordinarily nucleophilic?
What allows the carbon to remain in solution long enough to react in the way described by the Wittig reaction?

Answers

Answer:

Explanation:

Due to the presence of phenyl groups and diene, the aromaticity prevails and the nucleophilic carbon becomes part of aromaticity which increases the stability of entire compound. Therefore, the nucleophic carbon is considered

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