81. There is 1 carbon, 2 chlorine and fluorine atoms in Freon 12. To draw them it forms a cross with C in the middle and Cl and F both on the opposite side.

8 0

3 years ago

1. Define relative age in your own words.

romanna [79]

Explanation:

Relative age is a process of ascribing age based on some events. It is an inexact method of assigning age in that, we do not know for sure the real age.

Absolute age gives the exact numerical age of an event.
A landmark event is used in assigning relative age
It can be an extinction event, ice age, intense volcanism e.t.c

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5 0

4 years ago

How many miles are in 8.73 *10^25 atoms of boron

Mnenie [13.5K]

The correct question is: How many moles are in $8.73 \times 10^{25}$ atoms of boron.

Answer: There are 145 moles present in $8.73 \times 10^{25}$ atoms of boron.

Explanation:

According to the mole concept, there are $6.022 \times 10^{23}$ atoms present in one mole of every substance.

Hence, number of moles present in $8.73 \times 10^{25}$ atoms is calculated as follows.

$Moles = \frac{8.73 \times 10^{25}}{6.022 \times 10^{23}}\\= 1.45 \times 10^{2}\\= 145 mol$

Thus, we can conclude that there are 145 moles present in $8.73 \times 10^{25}$ atoms of boron.

5 0

3 years ago

We can predict that summer will follow spring. T or F

Romashka-Z-Leto [24]

Answer:

true

Explanation:

5 0

3 years ago

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