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2 years ago

Please help me out with this question if you help me I will give you the brain thing and extra points. 8/9 image below.

Chemistry

2 answers:

Nataly [62]2 years ago

7 0

Answer:

the answer is most likely b, sorry if im wrong.

Explanation:

.....

castortr0y [4]2 years ago

6 0

B is the most logical anwser.

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QUESTION 1

Lisa [10]

B obviously not a or c so if it aint b its D

3 0

3 years ago

Read 2 more answers

At constant temperature and pressure, 5.0 L of SO2 is

Ne4ueva [31]

I've done this a few times and keep coming up with 5.0 L . I used the mole ratio, and SO 2 as the LR. That would make 2 moles of SO3 5.0 L but its not one of your choices. the temp and pressure are constant, so according to n/v = p/rt the volume is the same as the moles. hope this helps

4 0

3 years ago

In a lab, silver nitrate,AgNO₃, is dissolved in water until no solid is observed in the container. Then, a solution of sodium ch

leva [86]

Answer:

The answer to your question is: A, C, E

Explanation:

After reading the information given, we can conclude that both reactants react to form a new solid product and another product that do not precipitate.

The reaction is:

AgNO₃ + NaCl ⇒ AgCl + NaNO₃

a. Formation of a solid indicates that a chemical reaction occurred This option is correct, precipitation indicates that a changed occurred in the solution due to a chemical reaction.

b. The initial disappearance of silver nitrate in water indicates a chemical reaction occurred No, what is happing is that silver nitrate is dissolving in water, this process is a physical change because matter do not change its nature.

c. The color change of the solution indicates a chemical reaction occurred This option is true, when a color appears suggest the formation of a new product.

d. A chemical reaction occurred when silver nitrate was added to water

This option is not correct, in this process silver nitrate is dissolving in water but it is not a chemical reaction because matter does not change is nature.

e. A chemical reaction occurred when the solutions were combined This option is true because silver nitrate and sodium chloride react to form a new product (solid formation and change in color).

f. The lack of temperature change indicates a chemical reaction didn't occur This is false, some reactions do not need a change of color to happen.

6 0

3 years ago

Atomic emission spectra are produced when the light emitted by an element passes through a prism. Which of the following stateme

xenn [34]

Option C: elements produce spectra with only few distinct lines.

The spectra are not continuos and are different for every element. This permits to identify elements.

3 0

3 years ago

Define shielding and effective nuclear charge. What is the connection between the two?

ivolga24 [154]

Answer:

The relation between the shielding and effective nuclear charge is given as

$Z_{eff} = Z -S$

where s denote shielding

z_{eff} denote effective nuclear charge

Z - atomic number

Explanation:

shielding is referred to as the repulsion of an outermost electron to the pull of electron from valence shell. Higher the electron in valence shell higher will be the shielding effects.

Effective nuclear charge is the amount of net positive charge that valence electron has.

The relation between the shielding and the effective nuclear charge is given as

$Z_{eff} = Z -S$

wheres denote shielding

z_{eff} denote effective nuclear charge

Z - atomic number

8 0

3 years ago