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Dvinal [7]
3 years ago
10

I have a question, about trends in the periodic table. Mostly focusing on ionization energy. From going from right to left it in

creases as the atom's size decreases. Can someone explain why this happens? Like why does it increase as the size decreases Thank you.
Chemistry
1 answer:
jasenka [17]3 years ago
5 0
It increases because the electrons are held tighter together by the higher effective nuclear charge. The electrons are held in lower energy orbitals and closer to the nucleus and more tightly bound and harder to remove from the atom.
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1. A cupcake show makes and delivers specialized cupcakes. It will cost someone $30 for
lorasvet [3.4K]

Answer:

2.5

Explanation:

The given costs for the purchase and delivery of the cupcakes are;

The cost of 10 cupcakes and the delivery fee = $30

The cost of 25 cupcakes and the delivery fee = $67.50

Let 'c' represent the fixed cost of delivery of the cup cakes, and let 'x' represent the cost of each cup cake, we have;

30 = 10·x + c...(1)

67.50 = 25·x + c...(2)

Subtracting equation (1) from equation (2) gives;

67.50 - 30 = 37.50 = 25·x - 10·x + c - c = 15·x

∴ x = 37.50/15 = 2.5

The cost of each cupcake, x = 2.5

(∴ The delivery fee = 30 - 10 × 2.5 = 5)

The cost of each cupcake is 2.5.

8 0
3 years ago
What is a bowl-shaped crater thought to<br> be caused by the collapse of an empty<br> magma chamber?
xxMikexx [17]

Answer:

pyroclastic flow. a superheated cloud of gas and volcanic ash that travels swiftly down a volcanic slope. What is a bowl-shaped crater thought to be caused by the collapse of an empty magma chamber? caldera.

Explanation:

google

can I gave brainliest

8 0
4 years ago
a 40-lb container of peat moss measure 14x20x30 inches and has an average density of 0.13 g/cm^3. how many bags of peat moss are
telo118 [61]

Volume of the peat moss = 14\times 20\times 30 inches

= 8400 in^{3}

Convert the above volume into cm^{3}

1 in^{3}= 16.4 cm^{3}

Thus, volume in cm^{3} is:

Volume of peat moss =  8400 in^{3}\times \frac{16.4 cm^{3}}{1 in^{3}}

= 137760 cm^{3}

Now,

Total volume by using area and depth of the peat moss = area of peat moss \times depth of peat moss

= (13 ft \times  25 ft)\times 1.9 inches

= (325 ft^{2})\times 1.9 inches

Convert above values in cm to get the value of volume in cm^{3}:

1 ft= 30.48 cm

1 in= 2.54 cm

Thus, volume in cm^{3} is:

Total volume = (325 ft^{2}\times\frac{(30.48 cm)^{2}}{(1 ft)^{2}})\times (1.9 in\times \frac{2.54 cm}{1 in})

= 301934.88 cm^{2}\times 4.826 cm

= 1457137.73088 cm^{3}

Now, number of bags is calculated by the ratio of total volume of the peat moss to the volume of the peat moss.

Number of bags  =\frac{total volume of peat moss}{volume of peat moss}

Substitute the values of volume in above formula:

Number of bags  = \frac{1457137.73088 cm^{3}}{137760 cm^{3}}

= 10.57

≅ 11 bags

Thus, number of bags of peat moss are needed to cover an area measure 13 ft by 25 ft to a depth of 1.9 inches are 11 bags.


4 0
3 years ago
Why does platinum metal make a good catalytic surface for reactant molecules?
d1i1m1o1n [39]

Answer:

it holds reactant molecules in a good position for then to react

3 0
3 years ago
Help plz!!!!!!!!!! Urgent
monitta

Answer:

Explanation:

10^-2

6 0
3 years ago
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