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qwelly [4]
3 years ago
14

The smallest unit that can exist as an element and still have the properties of that element is a(n):

Chemistry
2 answers:
Yuri [45]3 years ago
8 0
The smallest unit that can exist as an element and still have proprieties of that element is an Atom<span />
liq [111]3 years ago
6 0

Explanation:

Every element is made up of atoms which cannot be further divided into simpler substances.

For example, a piece of zinc metal will only contains atoms of zinc and no there element.

Since, these atoms are the same as the element itself. Hence, the element still retain its properties because there no other different element is present in it.

Thus, we can conclude that the smallest unit that can exist as an element and still have the properties of that element is an atom.

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Which of the following is smaller than the atomic radius of beryllium? a. the ionic radius of beryllium b. the atomic radius of
slamgirl [31]
The best quality answer I would say that it is cC
6 0
3 years ago
Show the calculation of the mole fraction of each gas in a 1.00 liter container holding a mixture of 8.65 g of CO2 and 4.32 g of
Vlad1618 [11]

Answer:

0.745 and 0.245

Explanation:

Mole fraction (χ) is  the number of moles of a component divided by the total number of moles in a mixture.  

We must calculate the moles of each component.  

Let CO₂ be Gas 1 and SO₂ be Gas 2.

1. Calculate the moles of each gas.

\text{n} _{1} = \text{8.65 g} \times \dfrac{\text{1 mol}}{\text{44.01 g}} = \text{0.1965 mol}\\\\\text{n} _{2} = \text{4.32 g} \times \dfrac{\text{1 mol}}{\text{64.06 g}} = \text{0.067 44 mol}

2. Calculate the total moles.

n_{\text{tot}} = \text{n}_{1} + \text{n}_{2} = \text{0.1965 mol} +\text{0.067 44 mol} = \text{0.2640 mol}

3. Calculate the mole fraction of each component

\chi_{1} =\dfrac{0.1965}{0.2640} = \mathbf{0.745}\\\\\chi_{2} =\dfrac{0.06744}{0.2640} = \mathbf{0.255}

6 0
3 years ago
When a __________ is completely dissolved in a __________, a solution is formed.
ValentinkaMS [17]
When a solute is completely dissolved in a solvent, a solution is formed.
8 0
3 years ago
Which of these gaseous elements is LEAST reactive?
Natali [406]

Answer:

helium

Explanation:

it has 8 valence electrons which fills its outer energy level making it have a stable arrangement of electrons hence least reactive

6 0
3 years ago
Read 2 more answers
The recommended application for dicyclanil for an adult sheep is 65 mg/kg of body mass. If dicyclanil is supplied in a spray wit
babunello [35]

Answer:

91 millilitres

Explanation:

Recommended application = 65mg / Kg

This means 65 mg of dicyclanil per kg (1 kg of body mass).

Concentration = 50 mg / mL

How many millilitres required to treat 70kg adult?

If 65mg = 1 kg

x = 70 mg

x = 70 * 65 = 4550 mg

Concentration = Mass / Volume

50 mg/mL = 4550 / volume

volume = 4550 / 50 = 91 mL

8 0
3 years ago
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