What two elements fill their last electron in the 5s sublevel?

Answers

Answer 1

Answer:Rubidium and Strontium

Explanation:


Related Questions

Please help will give brownies

Answers

Answer:

1.A 2.B

Explanation:

your welcomme glade to help

Which is a change or signal in the environment that can make an organism
react? *
stimulus
O reaction
impulse
O
response

Answers

Answer:

I'm pretty sure its stimulus

Which of the following conclusions can be made about the sedimentary layers?

bed 2 was deposited after bed 3
bed 2 was deposited before bed 3
bed 3 was deposited before bed 1
bed 1 is the youngest

Answers

Answer:

I think it's the second one im not sure tho

Hope this helps :)

A brick delivery truck parks on a roadside scale that measures 4 m by 6 m. If the brick truck weighs 60 000 N, what pressure does the scale put on the spring below?

Answers

Explanation:

Area = Length × Breadth

A = 4 × 6

A = 24m square/ 24m sq.

Force = Pressure × Area

Force = 60,000 N/ 60,000 Newton

Pressure = Force/ Area

P = 60,000/24

P = 2500 Pa

In a science demonstration, a teacher mixed zinc (Zn) with hydrogen chloride (HCl) in a flask and quickly attached a balloon over the mouth of the flask. Bubbles formed in the solution and the balloon inflated.

What most likely occurred during this demonstration?

The Zn and HCl both retained their identity.
Either Zn or HCl, but not both, retained its identity.
Evaporation of one of the substances occurred.
One or more new substances formed.

Answers

One or more new substances formed.

Answer:

d

Explanation:

100 quiz

9. First identify the following as either homogeneous substances or
heterogeneous mixtures. Then further classify as either elements,
compounds or mixtures:
a. Earth
i. Air
b. H(9) I
j. CuSO4(s)
C. Cuso, (aq)
k. NaCl (1)
d. Magnesium solid
1. Methane gas
e. Na (s)
m. Antimony (1)
f. Sugar (1)
n. H20 (1)
g. C.H2O. (aq)
o. 02 (9)
h. NaCl (aq)
p. CO (9)

Answers

Answer:

a few days ago of course I was a in the my life pro chef chef cooking channels and then the first first place to for the you know what do not you can be you know how much

What are alternative periodic tables

Answers

Tabulations of chemical elements differing in their organization from the traditional seen periodic system

Based on your data, how are elements arranged into chemical families?

Answers

Answer:

Based on their groups

Explanation:

Answer:

They are arranged vertically depending on how many valence electrons they have, if they have the same amount, they will have the same chemical family in each column.

An object has a mass of 20 g and volume of 10 cm. Enter the numerical value for the density of the object in units of g/cmº

Answers

Answer:

density = 2g/cm³

Explanation:

density = mass/volume

mass = 20g

volume = 10cm³

density = 20g/10cm³

density = 2g/cm³

Which roller coaster
car has the least potential energy due to gravity

Answers

Answer:

the roller coaster car with the least potential energy would be the one at the bottom of the roller coaster

Explanation:

Hope this helped

Find the area of a rectangle with a length of 10cm and a width of 7cm.

A.70cm
B.17 cm
C.17cm2
D.70cm2

Answers

Answer:

D

Explanation:

You would do 10*7 witch would be 70 then cm2 so the answer is 70cm2

The answer to your question is D so 70cm2 good luck

Which model represents an element?​

Answers

Answer: Water. Earth. Fire. Air.

Explanation: the four nations lived together in harmony. Then, everything changed when the Fire Nation attacked. Only the Avatar, master of all four elements, could stop them, but when the world needed him most, he vanished. A hundred years passed and my brother and I discovered the new Avatar, an airbender named Aang. And although his airbending skills are great, he has a lot to learn before he's ready to save anyone. But I believe Aang can save the world."

does anyone know how to do this??????

Answers

Answer:

you have to answer about what Emmy Noether was known for and how she accomplished her goal! For example Dr. Martin Luther King was known for his peaceful protests and his famous "I Have a Dream". He accomplished this goal by never giving up and sticking to his morals! I hope this helped!! ♡♡ (BTW love your profile picture)

Is fire considered matter

Answers

Matter is anything that has mass and occupies space. ... The flame itself is a mixture of gases (vaporized fuel, oxygen, carbon dioxide, carbon monoxide, water vapor, and many other things) and so is matter. The light produced by the flame is energy, not matter.

Answer:

Fire is a state of matter

Explanation:

Fire is the fourth state if matter called plasma fire is one of thr naturally occuring plasmas we have in existance on earth!

What is the charge of an Pb atom with 81 electrons?

Answers

Answer:

+1 Because there are 82 protons.

Explanation:

SCIENCE A meteorologist uses a weather map to explain an upcoming change in weather. The map shows a blue line with triangles approaching a red line with semicircles. Based on the map, which weather prediction is most valid? (1 point) A a significant drop in temperature will occur across the area. B There is no chance of precipitation in the forecast. C Warm temperatures will replace cold temperatures. D Humidity levels will rise.

Answers

Answer:

The correct option is D) Humidity levels will rise

Explanation:

A rise in humidity means that it is most likely there is going to be a rain.

When blue semi-circle lines with triangles approach red semi-circle lines it is a situation where cold front is approaching a warm front.

The resultant effect is that the warm and cold air both come to a standstill. This will most likely trigger cloud and fog and may even lead to rain.

Cheers

Which of these would have particles with the highest kinetic energy?

ice
water
water vapor

Answers

Answer:

water vapor

Explanation:

because gas molecules moves the fastest

Answer:

water vapor

Explanation:

Liquid water molecules have less freedom to move around. While molecules of water vapour have more freedom to move around as there is larger space between the molecules. Hence, the kinetic energy of water molecules is more as compared to the kinetic energy of liquid water

Na + HCI → H2 + NaCl​

Answers

Answer: 2Na + 2HCl —> H2 + 2NaCl

I am a common cation that is found in the alkali group. I am found in salt. I have a +1 charge. What am I?

Answers

Answer:sodium

Explanation:

Sodium

Use the information given to calculate the average atomic mass of element Z. Z- 56 is 70% abundant and Z-59 is 30% abundant.​

Answers

Answer:

56.9 amu

Explanation:

Depending on the number of isotopes an element has, the Average atomic mass of isotopes of an element can be calculated using:

(atomic mass of isotope1 × decimal abundance of isotope1) + (atomic mass of isotope2 × decimal abundance of isotope2)

According to this question, two isotopes of element Z were given

- Isotope Z- 56 with atomic mass 56 is 70% abundance. This means that its decimal abundance is 0.70

- Isotope Z- 59 with atomic mass 59 is 30% abundance. This means that its decimal abundance is 0.30

Therefore, average atomic mass of element Z is:

= (56 × 0.70) + (59 × 0.30)

= (39.2) + (17.7)

= 56.9

Pieces of inorganic or organic materials that come from rock and are
deposited by wind, water, or ice are called...


1.weathering
2. sediment
3.erosion
4.drought

Answers

Answer:

Sediment

Explanation:

Calculate the mass percent of sulfuric acid in a solid sample given a 0.8390g sample of that solid required 32.22 mL of 0.2012 M NaOH for neutralization.
A) 62.11
B) 2.64
C) 37.89
D) 75.78
E) 1.27

Please give an answer and an explanation, thanks!

Answers

Answer

C

Explanation:

i remember learning this

Mass percentage does not have any unit as numerator and denominator contains the same unit. The percentage of sulfuric acid in solid sample is 38.07%.

What is percentage by mass?

Mass percentage represents the the percentage of each element that is making a particular compound.

Mathematically,

Percentage of mass = (component’s mass ÷ total mass) x 100%

[tex]\rm 2 NaOH aq + H _{2} SO _{4} aq → Na _{2}SO _{4}aq + 2 H _{2} O[/tex]

Volume of NaOH solution = 32.22 mL = 0.03222 L

Concentration or molarity of the NaOH solution = 0.2012 M

Moles of NaOH : 0.03222×0.2012=0.006444mol

2 moles of sodium hydroxide reacts with 1 mole of sulfuric acid.

0.006444mol of sodium hydroxide reacts with =0.006444÷2=0.003222mol of sulfuric acid.

Mass of sulfuric acid neutralized = 0.003222 moles × 98.08 g/mol =0.31601376g

Percentage of sulfuric acid in solid sample= (0.31601376g÷0.8390g)×100=38.07%

Thus the percentage of sulfuric acid in solid sample is 38.07%.

To learn more about mass percentage, here:

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HELPS MEEEEEEEEEEEEE!!!!!!!!!!!!!
Conduction is ______________.
A. When particles transfer energy by touching.
B. None of these
C. When the sun warms an object.
D. The flow between warm and cool sections of a fluid.

Answers

Answer:

a

Explanation:

Answer:A. When particles transfer energy by touching.

Example: After a car is turned on, the engine becomes hot.

7. Electrons that are free to move in a metal are referred to as ________ electrons.
A.magnetic
B.valence
C.electrostatic
D.cation

Answers

Answer:

D; Cation

They are the valence electrons that can move between two metal molecules.

Example of Anchoring Bias

Answers

Answer:

Here is an example of anchoring Bias

If I were to ask you where you think Apple’s stock will be in three months, how would you approach it? Many people would first say, “Okay, where’s the stock today?” Then, based on where the stock is today, they will make an assumption about where it’s going to be in three months. That’s a form of anchoring bias. We’re starting with a price today, and we’re building our sense of value based on that anchor.

Anchoring bias occurs when people rely too much on pre-existing information or the first information they find when making decisions. For example, if you first see a T-shirt that costs $1,200 – then see a second one that costs $100 – you're prone to see the second shirt as cheap.

Anchoring or focalism is a term used in psychology to describe the common human tendency to rely too heavily, or "anchor," on one trait or piece of information when making decisions.

Hope that helped if it did please give me brainiest Thanks <333 :3

What would pressure be if volume was 0

Answers

Answer:

The lower the temperature, the lower the pressure inside of the sphere. If the exact values were plotted out, a linear relationship would be apparent. Extrapolating this line to the point where there would be no pressure yields absolute zero, which is about -273.15 degrees Celsius.

Explanation:

Reducing child __________, or rate of death, is one of the primary goals of the UN’s Millennium Development Goals.
A.
mortality
B.
maternity
C.
infirmity
D.
infection

Answers

Answer: A

Explanation: Mortality means death. And it is a primary goal of Development Goals

Reducing child mortality, or rate of death, is one of the primary goals of the UN’s Millennium Development Goals and the correct option is option A.

What is Mortality?

Mortality is defined as the state of the individual being dead. The mortality rate is the death rate of a population which is calculated on the basis of the deaths in the particular region.

Mortality as one of the components of demography is measured as mortality rate.

Mortality meaning provides the basis for mortality rate and its estimation. Mortality is the possibility of and susceptibility to death, and hence, the rate of mortality or the death rate is the measurement of the number of deaths that occur in a particular population, scaled to the size of that population per unit of time.

Therefore, Reducing child mortality, or rate of death, is one of the primary goals of the UN’s Millennium Development Goals and the correct option is option A.

Learn more about Mortality, here:

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You can separate air into two different substances by density. What is air?
O A. A mixture
OB. A compound
C. An atom
D. An element
SUB

Answers

A mixture I hope it’s righttt!

An ice cube is placed in a glass of water. Which of the following best explains the
heat transfer?

A: The thermal
is moving
from the water to from the ice cube into the water into the water
causing the
temperature of
the water to
increase.
B: the thermal energy is moving from the water to the ice cube causing the temperature of the water to decrease
C: the thermal energy is moving from the ice cube into the water causing the temperature of the water to increase
D: the thermal energy is moving from the ice cube into the water causing the temperature of the water to decrease.​

Answers

D: the thermal energy is moving from the ice cube into the water causing the temperature of the water to decrease.​



Calculate the average atomic mass of silver if 13 out of 25 atoms are silver -107 and 12 out of 25 atoms are silver -109

Answers

Answer: 107.96amu

Explanation:

(107x.52)+(109x.48)

55.64+52.32=107.96

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Please help me! thank you!!! Divide.1/3 divided by 1/6 Refer to the Newsela article "The Lakota Tribe Wants to Educate People Through Music Project."Part AWhat is an implied idea in the article?The goal of the Lakota Music Project is to emphasize the differences between Native American music and European music.The Lakota Music Project is a product of the Indianist movement.An outcome of the Lakota Music Project is that people of different cultures learn how much they have in common.The Lakota Music Project seeks to improve upon the music of different Indian tribes.Question 2Part BWhich two sentences from the text that best support the answer in Part A?The Lakota Music Project's focus remains on building bridges through music.""Native music is more freestyle," said Black Bear, who has been part of the Lakota Music Project since 2009.[The Indianist movement] flourished in the early 20th century as American composers based works on Native American themes."Its goal is to spotlight Native American influences on American classical music." Advantage of male circumcision 4. State in words how acceleration is calculated. Look at the equation below.d=(ri+r2)tWhich of the following shows the equation solved correctly for 11?O ri=n1 = 12T =detT2r = -2O T1= .dra Which phrase best represents the following?"Six times the quantity of four plus a number"0 64 + n)O 6n + 40 6(4) + nO 4n + 6 Helpppin your journal, answer the "Culminating Activity" assignment question on p. 34 about Helen Kellers letter to Mark Twain. (2nd edition: Read pp. 3035 and answer the assignment question on p. 30 related to the texts about the 1969 Apollo 11 mission.) Which statement best describes one way businesses participate in thecircular flow of goods?A. Businesses trade goods between product and resource markets.B. Businesses provide revenue to households that sell products.C. Businesses create goods for product markets to sell.D. Businesses provide the labor that works in resource markets. The chemical symbol for sulfuric acid is H2SO4. How many atoms are contained in each molecule of sulfuric acid?a.3c.6b.5d.7 According to the constitution, how long is a senator's term What motivated Georgia's leader to move the states capitals from Savannah to Louisville in 1796 need help.................. amid the pandemic crisis, how does research help to maintain preventive measures? if you are asked to solve a system of equations in which there is no linear equation to start with, you can sometimes begin by isolating and substituting a variable that is squared in both equations. WILL GIVE BRAINLIEST IF ANSWER IS RIGHTAs a forensic expert, Jane needs to handle many biological evidence samples simultaneously. What is the basic precaution that she should take while doing so?A. air dry all the samplesB. use a new pair of gloves for each piece of evidenceC. store samples in humid conditionsD. use plastic bag for storage ________ and __________ give the feeling that a piece of art is whole Use the word SCHOOL to answer this question.If the letters of this word were written on paper and then cut into squares with one letterper square, what is the probability of this event?P(consonant)13121623 write a letter to your friend telling him why you study business What is a Transregional candidate?