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Anna71 [15]
2 years ago
15

Elements are simple ___

Chemistry
1 answer:
storchak [24]2 years ago
3 0

Answer:

particles

atoms

broken

isotope

conductors

electricity

element

combined

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Many different localities are thought to be hotspots, found overlying mantle plumes, although scientists cannot agree on a defin
borishaifa [10]

(If this is correct, can I have Brainlist?)

Answer:

D) anomalous volcanoes such as those in Hawaii

4 0
2 years ago
How many moles is 2.17 x 10^ 23 representative particles of bromine?
Oksana_A [137]
It should be 2.7 mol if I"m correct
3 0
3 years ago
Solid calcium carbonate breaks down into carbon dioxide gas, oxygen gas, and solid calcium, write an equation for described reac
Savatey [412]

Answer:

CaCO₃ ------> CaO + CO₂

<em>Note: The breakdown products of solid calcium carbonate is not carbon dioxide gas, oxygen gas, and solid calcium. Rather, it is calcium oxide and carbon dioxide as shown in the reaction equation above.</em>

Explanation:

Calcium carbonate is a mineral which occurs in nature in rocks as calcite and limestone. It is also the main component of eggshells, snail shells, seashells and pearls. It has the molecular formula CaCO₃.

Calcium carbonate or limestone decomposes into calcium oxide and carbon dioxide when heated and the reaction is used to make quicklime and carbon dioxide gas. The equation of the reaction is given below:

CaCO₃ ------> CaO + CO₂

Calcium oxide, one of the products of The decomposition reaction is known as lime and is an important mineral used for many purposes such as reducing the acidity of soils, in the production of limelight, as well as serving as the main ingredient in cement.

The main use of calcium carbonate is in the construction industry as an ingredient of cement. Calcium carbonate is also an important mineral required by sea organisms for making their shells.

5 0
3 years ago
If 25 g of Al was added to 90 g of HCl, what mass of H2 will be produced?
jok3333 [9.3K]

Answer:

im pretty sure its 2.7 gms

Explanation:

im not for sure tho

3 0
2 years ago
Read 2 more answers
What is the square root of the atomic number for manganese
Vanyuwa [196]

For this case, we have that by definition:

<em>Manganese is a chemical element that has an atomic number equal to 25. This element is located in group 7 of the periodic table of the elements. The symbol for this element in the periodic table is: Mn. </em>

Therefore, taking the square root we have:

\sqrt {25} = 5

Answer:

the square root of the atomic number for manganese is 5.

3 0
3 years ago
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