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3 years ago

How many significant figures are in 6.00 in

Chemistry

2 answers:

Sedaia [141]3 years ago

7 0

Im pretty sure it’s 3.. :/

Free_Kalibri [48]3 years ago

5 0

Answer:

Explanation:

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Which metal is liquid at room temperature <br> a) lead<br> b) copper<br> c) mercury<br> d) sodium

Ahat [919]

Answer:

THE ANSWER IS MERCURY

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3 years ago

Read 2 more answers

Which inner planet has 2 moons? Question 2 options: Mercury Venus Earth Mars

MaRussiya [10]

Answer:

Mars

Explanation:

neither Mercury nor Venus have any moons at all, Earth has one and Mars has its two small moons

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2 years ago

. Metallic iron has a body-centered cubic lattice with all atoms at lattice points and a unit cell whose edge length is 286.6 pm

adell [148]

Answer:

$\large \boxed{\text{55.8 u}}$

Explanation:

1. Calculate the volume of the unit cell

V = l³ = (2.866 × 10⁻⁸ cm)³ = 2.354 × 10⁻²³ cm³

2. Calculate the mass of a unit cell

$\text{Mass} = 2.866 \times 10^{-23}\text{ cm}^{3} \times \dfrac{\text{7.87 g}}{\text{1 cm}^{3}} = 1.853 \times 10^{-22} \text{ g}$

3. Calculate the mass of one atom

A body-centred unit cell contains two atoms.

$\text{Mass of 1 atom} = \dfrac{1.853 \times 10^{-22} \text{ g}}{\text{2 atoms}} \times \dfrac{\text{1 u}}{1.661 \times 10^{-24}\text{ g}} = \textbf{55.8 u}\\\\\text{The molar mass of Fe from the Periodic Table is $\large \boxed{\textbf{55.845 g/mol}}$}$

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4 years ago

In a sample of oxygen gas at room temperature, the

valina [46]

Answer: The Kinetic Molecular Theory of Matter

Explanation: The answer is: B. Collisions between gas particles are elastic; there is no net gain or loss of kinetic energy.

The Kinetic Molecular Theory of Matter

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3 years ago

Non-living factors in an ecosystem are ______.

mash [69]

Answer:

B. abiotic

Explanation:

in biology and ecology, abiotic components or abiotic factors are non living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.

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3 years ago