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3 years ago

Which event occurs during a high tide?

Chemistry

2 answers:

sammy [17]3 years ago

6 0

Answer:All of Earth's ocean levels rise. The moon's orbit is closer to Earth

Explanation:

Ilia_Sergeevich [38]3 years ago

5 0

Answer: All of Earth's ocean levels rise. The moon's orbit is closer to Earth and events like stuff like shells, plastic etc. will get washed up on shore.

Explanation:

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What is the percent yield of NaCl if 31g of CuCl2 reacts with excess NaNo3 to produce 21.2g of NaCl

Valentin [98]

The answer is 78.7% yield.

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3 years ago

Is the continental crust less dense or more dense ?

zheka24 [161]

Answer:

It is less dense. It is also less dense than the oceanic crust.

Hope this helps and if it did, please mark brainliest!

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3 years ago

Read 2 more answers

Group the following electron configurations in pairs that would represent similar chemical properties at their atoms;

marishachu [46]

Answer: Pairs are: (a) and (d), (b) and (f), (c) and (e)

Explanation:

In a periodic table, elements are arranged in 18 vertical columns known as groups and 7 horizontal rows known as periods.

Elements arranged in a group show similar chemical properties because of the presence of same number of valence electrons.

Valence electrons are defined as the electrons which are present in the outermost shell of an atom. Outermost shell has the highest value of 'n' that is principal quantum number.

For the given options:

For a:

The given electronic configuration is: $1s^22s^22p^63s^2$

The number of valence electrons in the given configuration are 2

For b:

The given electronic configuration is: $1s^22s^22p^63s^3$

The number of valence electrons in the given configuration are [2 + 3] = 5

For c:

The given electronic configuration is: $1s^22s^22p^63s^23p^64s^23d^{10}4p^6$

The number of valence electrons in the given configuration are [2 + 6] = 8

For d:

The given electronic configuration is: $1s^22s^2$

The number of valence electrons in the given configuration are 2

For e:

The given electronic configuration is: $1s^22s^22p^6$

The number of valence electrons in the given configuration are [2 + 6] = 8

For f:

The given electronic configuration is: $1s^22s^22p^63s^23p^3$

The number of valence electrons in the given configuration are [2 + 3] = 5

Electronic configuration of (a) and (d) will form a pair, (b) and (f) will form a pair, (c) and (e) will form a pair and will have similar chemical properties.

Hence, the pairs are: (a) and (d), (b) and (f), (c) and (e)

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3 years ago

When you add water to calcium oxide it makes calcium hydroxide

Romashka [77]

Yes you add water to calcium oxide it makes calcium hydroxide

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3 years ago

An excess of oxygen reacts with 451.4 g of lead, forming 374.7 g of lead(II) oxide. Calculate the percent yield of the reaction.

Stels [109]

Answer: The percent yield of the reaction is 77.0 %

Explanation: