All categories

3 years ago

The balanced equation for photosynthesis is shown below.

Chemistry

2 answers:

irina1246 [14]3 years ago

8 0

Answer: The total number of carbon atoms on both sides is 6.

Explanation:

The law of conservation of mass or the Lavoisier's law is a fundamental law of natural sciences. According to this law, in an isolated system, during any ordinary chemical reaction, the total mass in the system remains constant.

The law of the conservation of mass is the base of the balancing of the chemical equations, since according to it, the consumed mass of the reactants is equal to the mass of the obtained products.

In the following table are the amount of C, H and O in the reagents and products of the reaction in question,

Reagents Products

C 6 6

H 12 12

O 18 18

As you can see, the statement that best justifies the conservation of mass during photosynthesis is the one that says that the total number of carbon atoms on both sides is 6.

jenyasd209 [6]3 years ago

4 0

The first sentence is the correct answer

You might be interested in

Draw and name the structures of the carboxylic acids and esters you put together using molecular models.

Neporo4naja [7]

Answer:

This question is incomplete

Explanation:

However, when the carboxylic acids and esters put together are obtained, the procedure below can be followed in drawing and naming them.

For carboxylic acid,

1) it should be noted that the functional group here is -COOH which is drawn as -C = OH

2) The carbon of the functional group is included among the carbon to be counted when naming the structure. For example, the compound below is propanoic acid.

CH₃CH₂COOH - As you can see that there are 3 carbons linked chain there.

3) As can be seen in (2) above, the suffix "oic" is used to name carboxylic acids

4) The carbon chain here is saturated (meaning there is no double or triple bond within the carbon chain)

Example of a structure of carboxylic acid is

H₃C - CH₂ - CH₂ - C = OH

The structure above is a butanoic acid

For ester

1)The functional group here is -COO- . which can be drawn as

- C = O

O -

(meaning one oxygen atom is double bonded to the carbon and the other oxygen atom is bonded to another carbon chain)

2) The alkyl group attached to the oxygen atom is first of all mentioned before the carbon chain attached from the left is mentioned. For example, CH₃CH₂CH₂COOCH₂CH₃ is ethyl butanoate

3) As seen from (2) above, the suffix "oate" is used to end the name of esters

4) As also seen from (2) above, the carbon of the functional group is also included while counting the carbon chain of the parent name (butanoate).

5) The carbon chains here are also saturated.

Example of this ester is

CH₃CH₂C = O

O - CH₂CH₃

The name of this compound is ethyl propanoate

3 0

3 years ago

Classify each of the following as an observation, a law, or a theory. (a) All matter is made of tiny, indestructible particles c

umka21 [38]

Explanation:

An observation is defined as the process which explains how it is happening (qualitative) and and quantitatively able to measure something about the process.

A law is defined as a verified statement that will remain true under the mentioned circumstances as it is based on the past observations that are carefully tested.

A theory is defined as the explanation of an aspect of natural world that can be tested, modified or rejected as a result of further experiments.

Hence, the given statements are classified as follows.

(a) All matter is made of tiny, indestructible particles called atoms - Theory

(b) When iron rusts in a closed container, the mass of the container and its contents does not change - Observation

(c) In chemical reactions, matter is neither created nor destroyed - Law

(d) When a match burns, heat is evolve - Observation

8 0

4 years ago

What is the estimated effective nuclear charge, Z eff, experienced by an electron in a 3p orbital of a chlorine atom?

mojhsa [17]

Effective nuclear charge is the charge felt by valence electrons of multi-electron atom taking into consideration the number of shielding electrons that surround the nucleus.
To calculate Z eff for electron we use this formula :
Z eff = Z - S where Z is the number of protons in nucleus and S is the average amount of electron density between the nucleus and electron in consideration
so Z eff = 17 - 10 (core electrons) = 7
So the correct answer is C

6 0

4 years ago

A gas mixture consists of 320 mg of methane, 175 mg of argon, and 225 mg of neon. the partial pressure of neon at 300k is 8.87 k

Vladimir [108]

To determine the volume of the gas mixture, we first need to determine the total pressure of the mixture. To do this, we use the definition of the partial pressure of a component in the gas mixture. The partial pressure is the pressure of a component as if it were alone in the container. It is equal to the mole fraction of the component times the total pressure of the system. From this, we determine total pressure.

Pneon = xneonP
P = Pneon / xneon
P = 8.87 kPa / (225 / (225 + 320 + 175))
P = 8.87 kPa / 0.3125 = 28.384 kPa

Assuming ideal gas, we use PV=nRT to calculate for the volume,
PV = nRT
V = nRT / P

n = 225 mg ( 1 mmol / 20.18 mg) + 320 mg ( 1 mmol / 16.05 mg ) + 175 mg ( 1 mmol / 39.95 mg ) = 35.47 mg = 35467.0 g

V = 35467.0 (8.314) (300) / (28384) = 3116.68 m^3

5 0

3 years ago

Contour lines can tell you about the----------- of an area or feature

GenaCL600 [577]

I think it is altitude

3 0

3 years ago