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Anit [1.1K]
3 years ago
14

Dalton’s atomic theory included which idea?

Chemistry
1 answer:
Kazeer [188]3 years ago
6 0

Answer:

Everything is composed of atoms, that are the indivisible building blocks of matter that cannot be destroyed. All atoms of an element are identical.

Explanation:

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what should you do if you want to decrease the rate of a chemical reaction between a solid and a liquid​
Nadya [2.5K]

Answer:increase the quantity of the solid in the reaction

Explanation:

6 0
2 years ago
Calculate the mass in grams of 2.56 × 10 −3 mol of iron.
gizmo_the_mogwai [7]

Answer:

1.43 grams

Explanation:

Fe = 55.8 grams Fe = 1 mole Fe

2.56 • 10^-3 moles Fe / 1 • 55.8 grams Fe / 1 mole Fe = 1.43 grams Fe

Basically, you're just multiplying the molar mass of Fe (iron) by the moles of 2.56 • 10^-3 Fe, to find how many grams are in it.

2.56 • 10^-3 moles Fe = 1.43 grams Fe

5 0
2 years ago
Is hardness an intensive or extensive physical property?.
Ierofanga [76]
It is an intensive property
7 0
2 years ago
How does the jet stream influence weather?
LiRa [457]
Jets streams play a key role in determining the weather because they usually separate colder air and warmer air.
4 0
3 years ago
How many moles of Al will be consumed when 0.400 mol of Al2O3 are produced in
Vladimir [108]

Answer:

C) 0.800 mol

Explanation:

  • 4Al + 3O₂ → 2Al₂O₃

In order to <u>convert from moles of Al₂O₃ into moles of Al</u>, we'll need to use<em> the stoichiometric coefficients</em>, using a conversion factor that has Al₂O₃ moles in the denominator and Al moles in the numerator:

  • 0.400 mol Al₂O₃ * \frac{4molAl}{2molAl_2O_3} = 0.800 mol Al

So the correct answer is option C).

7 0
2 years ago
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