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RUDIKE [14]
3 years ago
14

Explain why the sum of the coefficients on the reactant side of a balanced equation does not have to equal the sum of the coeffi

cients on the product side of the equation
Biology
1 answer:
ankoles [38]3 years ago
7 0
The requirement for a balanced equation is that the numbers of each kind of atoms in the reactants must match the number of each kind of atoms in the products.

The number of atoms in each molecule in the equation is the product of the coefficient and the subscript affixed after each element symbol in the formula to which the coefficient applies.

For example, 2 Na + Cl2 = 2 NaCl.

The coefficients on the left side total 3 but those on the right side total only 2. However, the number of atoms of each of sodium and chlorine total 2 on each side
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alexdok [17]

Answer: Wet or dry environment.

Explanation:

<u>The independent variable is the variable that a researcher manipulates in an experiment in order to carry out a study on the incidence of the expression of the dependent variable.</u> Therefore, the independent variable is the one that changes or is controlled to see its effects on the dependent variable.

Researchers can then design a container with a wet or dry environment. But it's the pillbugs that are going to choose where to go and how long to spend in each part. So the time they spend in each part is a dependent variable since that cannot be controlled by the scientists conducting the experiment. Henceforth, the researches will just record this dependent variable without controlling it. But they can decide what to put in the container to make it wet or dry environment, or whatever they want to design. So wet or dry environment is the independent variable.

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3 years ago
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3 years ago
Which rock is an example of a chemical sedimentary rock?
Nostrana [21]

<em>limestone</em>

<em>The most common chemical sedimentary rock, by far, is limestone . Others include chert , banded iron formation , and evaporite</em><em>s</em><em>.</em>

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madreJ [45]

Answer:

B

Explanation:

Diamond is the highest on the hardness scale, while quartz is lower, only a diamond can scratch a diamond

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Based on this image, what is responsible for the pattern of ocean currents?
emmainna [20.7K]

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I believe it would be because of earths rotation.

Explanation:

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