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3 years ago

The region that is the most probable location 01

Chemistry

2 answers:

Anni [7]3 years ago

7 0

If the question is asking where the election is most likely located at than it is number (2) an orbital

vazorg [7]3 years ago

7 0

2) an orbital... because an electron is always on the outside rings

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If 20 grams of sulfur reacts with 30 grams of oxygen, predict the mass of sulfur trioxide produced. Why would you expect this

Scilla [17]

20/32=0.625 moles of sulfur
30/16 = 1.875 moles of oxygen
The formula requires 1 mole of sulfur for 3 moles of oxygen which means that their is no limiting reactant as that is the ratio found thus it will react to completion forming 50 grams of product or sulfur trioxide

4 0

3 years ago

PLEASE HELP ASAP!!!!!!!! What type of plate boundary is this and what does it cause?

aliya0001 [1]

Answer:

divergent

Explanation:

Plates move apart at a divergent boundary

8 0

4 years ago

Given that a mass of a ball is (36.0 g), and the volume is (8.0 mL), what is the ball's density in g/mL?

max2010maxim [7]

Answer:

4.5g/mL

Explanation:

Given parameters:

Mass of ball = 36g

Volume of the ball = 8mL

Unknown:

Density of the ball = ?

Solution:

Density is the mass per unit volume of a substance.

Density = $\frac{mass}{volume}$

So;

Density = $\frac{36}{8}$ = 4.5g/mL

5 0

3 years ago

How many moles are in 4.818 x 1024 chloride ions

erastovalidia [21]

Answer:

<h3>The answer is 8.00 moles</h3>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{4.818 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 8.00332225...$

We have the final answer as

<h3>8.00 moles</h3>

Hope this helps you

4 0

3 years ago

How many nuclei of 238 92 U 92 238 U remain in a rock if the activity registers 290 decays per second?(Note that the half life o

Rom4ik [11]

Answer:

Use the activity formula,

T1/2 = 4.468 x 10^9 yr x 365 x 24 x 3600 = 1.409 x 10^17 sec

l = ln(2)/T1/2 = ln(2)/1.409 x 10^17 = 4.91932697 x 10^-18 s-1

DN/Dt = lN, 265 = 4.91932697 x 10^-18 x N

<u><em>N = 5.38 x 10^19 nuclei</em></u>

7 0

3 years ago