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Sholpan [36]
3 years ago
7

What kind of chemical reaction does the chemical equation sodium + chlorine → sodium chloride represent? combustion decompositio

n single replacement synthesis NextReset
Chemistry
1 answer:
horsena [70]3 years ago
4 0
The answer is D, synthesis.
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how is a heterozygous individual represented in the punnett square and pedigree shown above ((helpppppppp))
Gennadij [26K]
A heterozygous is represented by 1 capital letter and 1 lowercase in most instances.
8 0
3 years ago
Read 2 more answers
2. The volume of a rock is 5 cm' and its mass is 50 g. Find the density.<br> pls help :)
Vladimir [108]

Answer:

<h2>10 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}\\

From the question we have

density =  \frac{50}{5}  = 10 \\

We have the final answer as

<h3>10 g/cm³</h3>

Hope this helps you

5 0
3 years ago
Ms. Clark is teaching her class about how plants make food for themselves. On the board, she has written this: __________ + air
laila [671]

Answer:

sunlight

Explanation:

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3 years ago
´ Identify the independent, dependent, and controlled variables in your experiment which is how does adding salt affect the free
Margaret [11]
<span>An independent variable is a variable that is not affected in the experiment. It is what experimenter controls. Here, the concentration of salt is the independent variable.
On the other side, a dependent variable is called dependent because it depends on the independent variables. It is what is affected and observed during the experiment. Here, the freezing point of water is affected and, thus, it is the dependent variable.
A controlled variable is a variable that must remain unchanged (must be constant) during the experiment so that the effect on the dependent variable depends only on the independent variable. Here, the volume of water must be constant, so it is the controlled variable.

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7 0
4 years ago
The extent of ionization of a weak electrolyte is increased by adding to the solution a strong electrolyte that has an ion in co
rjkz [21]

Answer:

The statement is FALSE.

Explanation:

It is known as the ion effect common to the displacement of an ionic equilibrium when the concentration of one of the ions that are involved in said equilibrium changes, due to the presence in the dissolution of a salt that is dissolved in it.

Given the reaction of the dissociation reaction of a weak electrolyte:

AB (s) ⇔ A⁺(aq) + B⁻ (aq)

The equilibrium constant of the reaction is:

K_{ps}=\frac{[A^+][B^-]}{[AB]}

Given the reaction of the dissociation reaction of a stong electrolyte:

CB (s) ⇒ C⁺(aq) + B⁻ (aq)

If the electrolyte CB is added to the medium in which electrolyte AB is found, the medium will have a common ion B⁻:

AB (s) ⇔ A⁺(aq) + B⁻ (aq)

CB (s) ⇒ C⁺(aq) + B⁻ (aq)

By the Le Chatelier's principle, having more concentration of products, the balance will shift to the right.

Hence, the extent of ionization of a weak electrolyte is decreased by adding to the solution a strong electrolyte that has an ion in common with the weak electrolyte.

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3 years ago
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