3 years ago

Which statements are true of heterogeneous mixtures?

Chemistry

1 answer:

LiRa [457]3 years ago

6 0

Answer:

1 and 2

Explanation:

Message me for explanation.

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An atom

Natasha2012 [34]

Answer:

Doesnt take up space

Explanation:

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3 years ago

How many moles are in 7.1x10^21 atoms of iron?

Nitella [24]

Answer:

0.011 moles

Explanation:

There are about 6.02*10^23 atoms in a mole, so in the given sample, there are

$\frac{7.01 \times {10}^{21} }{6.02 \times {10}^{23} }$

which is about 0.011 moles.

8 0

2 years ago

Electrons involved in bonding between atoms are __________________

Vitek1552 [10]

The name given to these electrons are that they are valence electrons or binding electrons as these are directly involved in chemical Bonding and allow for different compounds to be made.

5 0

3 years ago

The particle size of solute particles does not affects the rate. Question 14 options: True False

stepan [7]

The answer is false

8 0

3 years ago

A student sets up the following equation to convert a measurement.

Sholpan [36]

Answer:

–0.13 Pa.m²

Explanation:

From the question given above, the following data were obtained:

Measurement (Pa.mm²) = –1.3×10⁵ Pa.mm²

Measurement (Pa.m²) =?

We can convert from Pa.mm² to Pa.m² by doing the following:

1 Pa.mm² = 1×10¯⁶ Pa.m²

Therefore,

–1.3×10⁵ Pa.mm² = –1.3×10⁵ Pa.mm² × 1×10¯⁶ Pa.m² / 1 Pa.mm²

–1.3×10⁵ Pa.mm² = –0.13 Pa.m²

Thus, –1.3×10⁵ Pa.mm² is equivalent to –0.13 Pa.m².

6 0

2 years ago