What are the general trends in first ionization energy across a period (LR) within the
periodic table? From bottom to top within a group?

Answers

Answer 1
Moving left to right within a period or upward within a group, the first ionization energy generally increases. As the atomic radius decreases, it becomes harder to remove an electron that is closer to a more positively charged nucleus. (this is copywriter so please just interpret)

Related Questions

What is the definition of an alternative acid?

Answers

alternative acids are more cost-effective and allow for flavor expression through nontraditional methods and ingredients, making for increased versatility.

calculate the [H+] if the [OH-] is 7.34x10^-10
pls show work

Answers

[H+] if the [OH-] is 7.34x10^-10

Which of the following processes is involved in the formation of sedimentary rocks?
O metamorphism
O cooling
O subduction
O deposition

Answers

Answer:

deposition

Explanation:

D. deposition

hope i can help

Long ago, living things were divided into two main groups: _________

Answers

Answer:

I think the answer is Prokaryote and Eukaryote

Explanation:

Why is it not possible to extract aluminium by heating its ore with carbon?

Answers

Aluminium is higher than carbon in the reactivity series, so aluminium can only be extracted using electrolysis

Please help not to fail chemistry

Answers

Answer:

I think the heat on the surface or the fire under the dish cost evaporation coz when the water got heat tge water evaporate or go to the upper part of dish and cool down then back to the bottom.

Explanation:

Plss correct me if im wrong

each side of a square is 8 by 10 metre find the area of the square​

Answers

Answer and Explanation:

I believe the answer is 8

I believe it’s 8 if not please tell me at least


47. How did you determine the stoichiometric coefficients of the X-630 reaction?

Answers

the sum of coefficients is given by f(1,1)=n∑k=0ck. Just write down the general formula for the binomial expansion of (a−b)n. Then consider what happens when a=b. You will see that the sum of the binomial coefficients must be equal to zero.

5.2 X 1026 molecules of CH4

Answers

Answer above

I cant send this with no text

Have a nice day


1. Place the following in order from largest amount of water found on Earth to the smallest:

glaciers and ice caps, ground water, ocean

Answers

Answer:

ocean, glaciers and ice caps,

ground water

Explanation:

I’ll really appreciate it if you help me out on this one .

Answers

1.
-Water levels are dangerously high for wildlife and humans.
-Animals seem to be lost, like the cow and the sheep especially.

2.
-There are not many trees near the water, meaning less areas for wildlife to live.
-There is not much wildlife in general.

Inferences
1. The wildlife shown will move relocate and adapt to another area.
2. Industry — emissions are visible in top left— will continue to hurt the environment. CO2 emissions will increase.

Good luck!

Which of the following could not be an empirical formula? a CH4 b Na2O c NaCl d H2O2

Answers

Answer:

C NaCl will not be an empirical formula.

Answer:

C naCl

Explanation:

it wouldnt be an empiricla formula

The formula for zirconium(VI) dichromate

Answers

Answer:

Zr(Cr2O7)2

Explanation:

Which has the larger change hydration in each pair of a)Na+ Or cs+ b)Sr+2 or Rb+ c)Na+ or Cl- d) O-2 or F- e)OH- or SH-

Answers

Answer:

See explanation

Explanation:

The size of the hydration enthalpy of a system depends on the attraction between the ions and the water molecules. Stronger attractions exist between water and smaller ions. The smaller the ion, the higher the hydration enthalpy is.

In the first pair, Na+ is smaller than Cs+ hence Na+ has a larger change in hydration enthalpy.

In the second pair, Sr2+ is smaller than Rb+ hence Sr2+ has a larger change in hydration enthalpy.

In the third pair, Na+ is smaller than Cl- hence Na+ has a larger change in hydration energy.

F- is smaller than O2- hence F- has a larger change in hydration energy.

OH- is smaller than the SH- hence the OH- has a larger change in hydration energy.

A carrier *
Organism that transmits disease through blood
O Person or animal that is infected with the disease but is asymptomatic
O Used to treat a bacterial infection, cannot be used to prevent an infection
Used to prevent a viral infection, must be given before the person is infected

Answers

Answer: carrier, is a person or other organism that has inherited a recessive allele for a genetic trait or mutation but usually does not display that trait or show symptoms of the disease. Carriers are, however, able to pass the allele onto their offspring, who may then express the genetic trait.

i think it is Person or animal that is infected with the disease but is asymptomatic

Explanation:

What do the colors of light combine to make _______________ light.

Answers

the answer is dure light I'm not sure of this answer ,but it might be to go with .

what is the formula for carbon decabromide?

Answers

Answer:

CBr4

Explanation:

Answer:

CBr4

Explanation:

It is CBr4 I hope it helps

Describe the motion of water molecules in a wave.

Lesson 2.13

Question 5 options:

Water molecules move up and forward, down and back, in an overall circular motion.


All of the choices


none of the choices


Water molecules don't move

Answers

Answer:

Molecules in the water move in a circular motion

Explanation:

Because of its circular motion it causes the waves to look like open circles which makes it easy for people to surf on

Water molecules move up and forward, down and back, in an overall circular motion in the wave. Therefore, option A is correct.

What is circular motion ?

Circular motion is defined as the movement of an object while rotating in a circle. Circular motion can be uniform or asymmetric.

The angular rate of rotation and speed are constant in uniform circular motion, but the rate of rotation changes in non-uniform circular motion.

This means that circular motion can occur only if there is a "center seeking" force present; otherwise, things will travel in a straight line.

Within the wave, the water molecules move in a circular motion. Each water particle moves in a complete circle during a single wave period. The circle traced by a water particle on the ocean surface as a wave passes a given point has a diameter equal to the height of the wave.

Thus, option A is correct.

To learn more about the circular motion, follow the link;

https://brainly.com/question/2285236

#SPJ6

I will mark somebody brainliest

Answers

I think it might be D

An atom will be neutral if which of the following are true of its arrangement of subatomic particles?

The number of its protons is equal to the number of its electrons
All of its electrons orbit its nucleus at exactly the same distance
The sum of the atom's protons and neutrons is greater than zero
The nucleus of the atom contains more neutrons than anything else

Answers

Answer will be a the number of its protons and on and on

This is 10th grade Chemistry

Answers

Answer:

shift to restore equilibrium

Explanation:

Le Châtelier's Principle states that when a stress is applied to a system at equilibrium, the system will respond by shifting in the direction (either towards the products or reactants side) that opposes/ minimizes the effect of the stress.

Note that although the system tries to restore equilibrium, this equilibrium is a new equilibrium.

Equilibrium is the state of a reversible reaction when:

• two opposing reactions occur at the same rate;

• the concentrations of reactants and products are constant

Determine the percent yield for the reaction between 98.7 g of
Sb2S3 and excess oxygen gas if 72.4 g of Sb4O6 is recovered along with an unknown amount of sulfur dioxide.

Answers

Convert 98.7 g Sb2S3 to mols.
Convert mols Sb2S3 to mols Sb4O6 using the coefficients in the balanced equation.
Convert mols Sb4O6 to grams Sb4O6. (This is the theoretical yield.)
Convert grams Sb4O6 to percent Sb4O6.
%Sb4O6 = [72.4/theoretical yield]*100


So basically your answer is 85.5%

The percent yield of the reaction would be 85.64%

Percent Yield

From the balanced equation of the reaction:

[tex]9 O_2 + 2 Sb_2S_3 ---> 6 SO_2 + Sb_4O_6[/tex]

Mole ratio of Sb2S3 to Sb4O6 is 2:1

Mole of 98.7g Sb2S3 = 98.7/339.7

                                   = 0.29 moles

Equivalent mole of Sb4O6 = 0.29/2

                                            = 0.145 moles

Mass of 0.145 Sb4O6 = 0.145 x 583

                                     = 84.535 g

Percent yield = yield/theoretical yield x 100

                       = 72.4/84.535 x 100

                        = 85.64%

More on percent yield can be found here: https://brainly.com/question/2506978?referrer=searchResults

a student is trying to classify an unidentified, solid gray material as a metal or a non metal. which question will best help the student classify the material?

F. Is the material malleable or ductile?
G. Does the material feel hard to the touch?
H. Will the material float in water?
J. Does the material feel rough or smooth?

Answers

Answer:

i think the answer is f as metals are malleable and ductile

Answer:

F

Explanation: Most metals carry the trait that they are malleable and ductile.

How are chemical reactions classified from an energy point of view?​

Answers

Answer:

normanie tykohoukdh    kjdj jj jjd

Explanation:

Summarize how a dinosaur can become a fossil.

Answers

The dinosaur dies and is washed away in a flood. The body is buried in sediment (mud or sand) and eventually the body is covered. ... Eventually, the fossil skeleton comes to the surface and is discovered.

How many moles of NaNO, would you need to make 500 mL of a 2.5 M
solution of NaNO?

Answers

Answer:

1.25 moles NaNO

Explanation:

Molarity = moles/Volume (L)

moles = Molarity (M) x Volume (L)

M = 2.5 M

V = 500 mL = 0.5L

moles = M x V = 2.5 x 0.5 = 1.25 moles

What is the solution to the problem expressed to the correct number of significant figures?
7.21= ?
A. 1.688
OB.
1.69
O C.
1.7:
OD
1.70

Answers

Answer:

(102 900 ÷ 12) + (170 × 1.27) = 8800

Step 1. Evaluate the expressions inside the parentheses (PEMDAS)

102 900 ÷ 12 = 8575

170 × 1.27 = 215.9

In multiplication and division problems, your answer can have no more significant figures than the number with the fewest significant figures.

Thus, the underlined digits are not significant, but we keep them in our calculator to avoid roundoff error.

Step 2. Do the addition (PEMDAS).

  8575

+    215.9

= 8790.9

Everything that you add to an insignificant digit gives an insignificant digit as an answer.

Thus, the underlined digits are not significant.

We must drop them and round up the answer to 8800.

Explanation:

Which of the following processes is NOT a way that carbon could move between the atmosphere and the biosphere?

Question 4 options:

respiration (breathing)


combustion (burning)


deep burial, compaction, and cementation


photosynthesis

Question 5 (2 points)
What is the only natural way that carbon can move OUT of the geosphere?

Question 5 options:

burning of fossil fuels


volcanic eruptions


dissolution


decomposition

Question 6 (1 point)
Which carbon reservoir contains the MOST carbon?

Question 6 options:

fossil fuels


atmosphere


land biomass


rocks

Question 7 (2 points)
Which carbon reservoir changes the quickest and has the biggest direct effect on climate?

Question 7 options:

land biomass


ocean


atmosphere


rocks

Question 8 (2 points)
Which best describes the process of ocean acidification?

Question 8 options:

The ocean absorbs more human-produced CO2, causing the acidity to increase


The ocean releases more human-produced CO2, causing the acidity to decrease


The ocean absorbs more natural CO2, causing the acidity to decrease


The ocean receives more polluted runoff, causing the acidity to increase

Question 9 (2 points)
What is a potential impact of ocean acidification?

Question 9 options:

Animals will have a harder time building their shells


Corals may have a harder time building their skeletons


Ocean ecosystems may suffer, making it harder for humans to get food from the ocean


All of the above

Answers

Answer:

question 1 i believe is c i will put the other answeres in comments

when i finish the test

Explanation:

The carbon cycle plays an important in maintaining carbon balance on the earth.

What is the carbon cycle?

The carbon cycle is the cycle by which carbon is recycled between the atmosphere and the geosphere.

In the carbon cycle, the process of recycling carbon do not include deep burial, compaction, and cementation.

Volcanic eruptions are one natural way that carbon can move OUT of the geosphere.

Fossil fuels, atmosphere, land biomass and rocks are all carbon reservoirs, but fossil fuels contains the MOST carbon.

The atmosphere is the carbon reservoir that changes the quickest and has the biggest direct effect on climate.

Ocean acidification occurs because the ocean absorbs more human-produced CO2, causing the acidity to increase.

A potential impact of ocean acidification is that ocean ecosystems may suffer, making it harder for humans to get food from the ocean.

Therefore, the carbon cycle is important in maintaining carbon balance on the earth.

Learn more about carbon cycle at: https://brainly.com/question/25845923

why is respiration considered an exothermic process​

Answers

Answer:

Respiration is considered as exothermic reaction because energy is released in this process. Glucose combines with oxygen present in our cells to form carbon dioxide and water along with energy.

Explanation:

Good Luck!

Respiration is considered as an exothermic reaction because, in the respiration process, oxidation of glucose takes place which produces a large amount of heat energy stored in the form of ATP. This is shown in the following chemical equation C 6


In the following reaction 2Na+ 2H20 - 2NaOH + H2: all of the sodium is consumed and a small amount of
liquid water remains at the end of the reaction. Which reactant is the limiting reagent?

A) H20
B) H2
C) Na
D) NaOH

Answers

Answer:

C) Na

Explanation:

The question tells us that all of the sodium (Na) is consumed and that water is left over. This means that sodium would be the limiting reagent.

C)na

I took the test
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