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Pani-rosa [81]
3 years ago
7

A base is also known as a alkali, soother, or indicator

Chemistry
1 answer:
Dimas [21]3 years ago
8 0
If a base dissolves in water it’s called an alkali.
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Characteristic of meteor​
Sati [7]

Explanation:

Many meteorites have iron or nickel in them, so they are heavier (and denser) than Earth rocks. Some meteorites have pits (regmaglypts) on the outside, which look like deep thumbprints. Meteorites are not bubbly, and do not have holes. Meteorite are usually not round.

8 0
2 years ago
Define symbole and valeny.​
Alexxx [7]

Answer:

Chemical symbol

This is used to identify an element without having to write the full name and as such is a designation for the element. It is used in chemical reactions and is usually either one or two letters. Some symbols are, Iron - Fe, Hydrogen - H and Oxygen - O.

Valency

This refers to the capacity of an element to combine with another to form a compound. It is measured by the number of electrons that an atom of an element gains, looses or shares when a chemical reaction involving it takes place.

3 0
3 years ago
How many moles of CH4 are in 148.6 g? Round your answer to two decimal places.
Dafna1 [17]

Answer:

9.29 mol

Explanation:

Given data:

Number of moles = ?

Mass = 148.6 g

Solution:

Number of moles = mass/ molar mass

Molar mass of CH₄ = 16 g/mol

Now we will put the values in formula.

Number of moles = 148.6 g/ 16 g/mol

Number of moles = 9.29 mol

Thus 148.6 g have 9.29 moles.

6 0
2 years ago
For the main group elements( excluding the transition elements) , is it necessary to memorize the type of ion each element makes
vagabundo [1.1K]
Yes, you should memorize them. While it is easy to predict them by looking at a periodic table, you should still have a strong grasp of simpler chemistry such as this before more challenging topics are taught.
3 0
3 years ago
Please, can i get some help with these question? Can anyone please answer what exactly i should write?
pav-90 [236]
Use photomath. I would really recommend it! Hope this helps!
8 0
2 years ago
Read 2 more answers
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