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Mice21 [21]
2 years ago
13

what are substances that cannot be broken down into simpler substances? elements elements protons protons compounds compounds mo

lecules
Chemistry
1 answer:
S_A_V [24]2 years ago
5 0

A type of atom can be of any type. Elements are pure chemicals that cannot be converted into more basic compounds by conventional chemical processes.

A chemical element is a substance that cannot be disassembled chemically or physically into simpler substances. Chemical elements are the basic building blocks of matter because they are pure substances made up of atoms with the same atomic number (number of protons) in their nuclei. A chemical element is essentially a pure substance that cannot be disintegrated, degraded, or changed into other compounds through physical or chemical methods.

Learn more about Elements here-

brainly.com/question/13025901

#SPJ4

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Which is a characteristic of mixtures ?
sattari [20]

The characteristics of mixtures are:

a) they are made up of two of more substances

b) the two substances can be separated by physical means

c) there are two kinds of mixtures : homogenous and heterogenous

d) homogenous mixtures do not have any physicaly distinguished boundary  

6 0
4 years ago
Read 2 more answers
How many atoms are in a sample of 175 grams of sodium (na)? 1.42 × 10^27 atoms 4.58 × 10^24 atoms 6.68 × 10^-21 atoms 1.26 × 10^
Alenkasestr [34]
Atomic mass Na = 22.99 u.m.a

22.99 g ------------------ 6.02x10²³ atoms
175 g -------------------- ?? atoms

175 x (6.02x10²³) / 22.99 => 4.58x10²⁴ atoms

hope this helps!
5 0
4 years ago
How do protons determine element identity
Butoxors [25]

Answer:

The number of protons also determines the identity of the element. ... Since the atom is electrically neutral, the number of electrons must equal the number of protons.

4 0
3 years ago
Write the formula for the polyatomic ion in fe(hco3)3. express your answer as an ion.
Juliette [100K]
Ions can be atomic or molecular. If an atom contains either positive or negative charge it said to be atomic cation or atomic anion.

When a molecule carry positive or negative charge it is called as polyatomic cation or polyatomic anion. Generally charged or ionized molecules are called as polyatomic ions.

In given question Fe(HCO₃)₃ ionizes as follow,

                         Fe(HCO₃)₃    →    Fe³⁺  +  3 HCO₃⁻

The Ions produced are Fe³⁺ and HCO₃⁻. Fe³⁺ is said to be atomic (Ferric) ion and HCO₃⁻ (Bicarbonate) is polyatomic ion or molecular ion.

6 0
4 years ago
a 1. The electron configuration a particular metal contena de is [Ar]3d a) Identify the Corresponding metal b) write the electro
mario62 [17]

Explanation:

if it was meant for [Ar]4s²3d¹ :

1s²2s²2p⁶3s²3p⁶4s²3d¹

number of e‐ : 21

atomic number is 21.. element is scandium

ion: Sc³+

7 0
3 years ago
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