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-BARSIC- [3]
3 years ago
10

What is one important discovery that the curies made

Chemistry
1 answer:
tatiyna3 years ago
6 0
The Curies discovered radium
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Which organelle is the control center of a cell?
Korvikt [17]
C) the nucleus. Hope this helps :)
6 0
3 years ago
Read 2 more answers
How many reactant molecules and product gas molecules are in this equation?
Mice21 [21]

Answer:

N₂  = 6.022 × 10²³ molecules

H₂ = 18.066 × 10²³ molecules

NH₃ = 12.044 × 10²³ molecules

Explanation:

Chemical equation;

N₂ + 3H₂     →  2NH₃

It can be seen that there are one mole of nitrogen three mole of hydrogen and two moles of ammonia are present in this equation. The number of molecules of reactant and product would be calculated by using Avogadro number.

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

Number of molecules of nitrogen gas:

1 mol = 6.022 × 10²³ molecules

Number of molecules of hydrogen:

3 mol × 6.022 × 10²³ molecules/ 1 mol

18.066 × 10²³ molecules

Number of molecules of ammonia:

2 mol × 6.022 × 10²³ molecules/ 1 mol

12.044 × 10²³ molecules

6 0
4 years ago
When naming ionic compounds does the roman numeral after the metal cation tell you how many anions will be there?
murzikaleks [220]

Answer:

no

Explanation:

the roman numeral tells you that the metal is a transition metals. transition metals have more than one oxidation state.

8 0
3 years ago
Diffrentiate the reactivity of metals and Non-metals with air / oxygen.​
algol13

Answer:

Both metals and non-metals when burnt in oxygen form their oxides. Oxides of metals are basic in nature and oxides of non-metals are acidic in nature.

8 0
2 years ago
What do binary ionic compounds, binary molecular compounds, and binary acids have in common?
Fudgin [204]
Essentially the term binary, meaning each different thing has two components. Binary ionic compounds have two ionic compounds, binary molecular compounds have two molecular compounds, and binary acids have two acids.
8 0
3 years ago
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