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Zepler [3.9K]
3 years ago
5

30. How many types of chemical reactions are there?

Chemistry
2 answers:
Nadusha1986 [10]3 years ago
8 0

Answer:

B. Five

Hope this helps........

zhenek [66]3 years ago
3 0

B Five Is the correct answer

mark me as brilliant

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Which element of the periodic table is named after the moon
Troyanec [42]

Answer:

The answer to your question is Selenium

Explanation:

The origin of the names of the elements comes from different origins

For example

Sanskrit words. 14 elements have roots from this language

Planets, 4 elements took their names from the planets.

Greek, 42 elements took their names from these languages

The name of Selenium comes from the greek that means moon.

8 0
3 years ago
Classify the items based on whether they are or are not matter.
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Matter:

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Explanation:

Matter is something that has mass and volume. Happiness is just a feeling, it doesn't exist in 3d world. Sound is a wave or just the movement of matter (particles of matter). Others have masses and volumes.

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2 years ago
Why does soap decrease the surface tension of water?
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Answer:

Soap decreases surface tension by changing the way water behaves on the surface. Hard and soft water react differently when soap is added to them.

Explanation: i think it is this

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How to find the charge of an element
katrin2010 [14]

Answer:

the atomic number is how you find the charge

7 0
3 years ago
Who earned the nobel prize twice for their work with radioactivity
lord [1]

Answer:

Marie Curie, née Maria Salomea Skłodowska, (born November 7, 1867, Warsaw, Congress Kingdom of Poland, Russian Empire—died July 4, 1934, near Sallanches, France), Polish-born French physicist, famous for her work on radioactivity and twice a winner of the Nobel Prize.

Explanation:

pls give brainlest almost lvled up.

7 0
2 years ago
Read 2 more answers
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