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Picture attached with the problems.

Based on the trend of electronegativities values of the elements Be, Mg, Ca, and, Sr within their group (increasing from bottom to top), the atoms of the element Sr will have the least attraction for an electron.  

We need to remember that electronegativity indicates the affinity or attraction of an element for an electron. Hence, the higher the electronegativity, the higher the attraction of that element for an electron.  

The values of electronegativities of the given elements are the following:

Be = 1.57

Mg = 1.31

Ca = 1.0

Sr = 0.95

We can see that the increasing trend of electronegativities in this group is from the bottom to the top, having the Sr with the lowest electronegativity value and the Be with the highest.  

This trend is related to atomic size, the larger the atomic size, the lower the electronegativity because the electron in the outermost shell will feel less attraction towards the nucleus of an atom. In a group of the periodic table, the size of an atom will increase from top to bottom.          

Therefore, according to the said above, the atoms of the Sr will have the least attraction for an electron (it has the lower electronegativity value).

Find more about electronegativity here:

I hope it helps you!

Answer:

b . Thunder formed between carbon atoms and other elements because carbon has four valence electrons it made take for Coral Bell and funds to obtain a complete outer energy level.

Answer:

The 3rd answer or NCI is the correct answer

Explanation:

Hope this helps:)

Answer:

the 1st one

Explanation:

Answer:

Niels Bohr

Explanation:

The cart starts out in position A with high potential energy, low kinetic energy, and some thermal energy. As the cart progresses into position B, the kinetic energy begins to increase and the potential energy begins to decrease; as the thermal energy increases as thermal energy from the track is transferred to the cart through friction. Once the cart reaches position C, it has high kinetic energy, low potential energy, and some thermal energy. At position D, the cart has high potential energy, low kinetic energy, and some thermal energy. The potential energy throughout is correlated to gravity, the kinetic energy is correlated to momentum, and the thermal energy is correlated to friction. The potential energy is at its maximum during position A, and its minimum at position C; the kinetic energy is at its maximum during position C, and its minimum at position A; the thermal energy is at its maximum during position B, and its minimum at position A

Answer:

I believe it would be Law of conservation of mass (sorry if I'm incorrect)

Answer:

Phosphorus ( white) us highly reactive and ignites at about 30°C when exposed to moist air

Answer:

I know someone that has the answer

Explanation:

I know someone that has the answer

Answer:

94448421.2201

Explanation:

multiply the value in kilometers by the conversion factor '0.62137119223684'.

So, 152000 kilometers = 152000 × 0.62137119223684 = 94448.42122 miles.

Answer:

[tex]\huge\boxed{\sf Q = 5880\ Joules}[/tex]

Explanation:

Given:

m = mass = 40 g = 0.04 kg

c = specific heat constant of water = 4200 J/Kg°C

ΔT = change in temperature = T2-T1 = 60 °C - 25 °C = 35°C

Required:

Q = change in heat energy = ?

Formula:

Q = mcΔT

Solution:

Q = (0.04)(4200)(35)

Q = 5880 Joules

[tex]\rule[225]{225}{2}[/tex]

Answer:

204.8256

Explanation:

Answer:

NH4Br and NH4I are both soluble in water, and they don't react with each other. So this pair will not form precipitation.

NaClO4 and (NH4)2S are both soluble in water.  While in water, they dissociate into Na+, ClO4-, NH4+ and S2- ions, which don't react with each other.  So this pair will not form precipitation.

Ni(NO3)2 and Na2CO3 are both soluble in water.  When the 2 solutions combine, NiCO3 forms.  NiCO3 is not soluble in water, so it will precipitate out from the solution. This pair will result in precipitation.

K2SO4 and Cu(NO3)2 are both soluble in water. While in water, they dissociate into K+, SO42-, Cu2+ and NO3- ions, which don't react with each other.  So this pair will not form precipitation.

Explanation:

Hope this helps...

Answer:

Explanation:

I'm not sure what is being asked, not the units of "1.5."  I don't know of potassium "ioxicide."  Was "dioxide" intended?

I'll assume the question is "What is the concentration, in Molar, of 1.5g of potassium dioxide in 150cm^3 of water (150cm^3 is 150 ml).

The molar mass of K2O, potassium dioxide, is 94.2 g/mole.  1.5g is (1.5g/94.2 g/mole) or 0.0159 moles of K2O.  The definition of Molar is moles/liter.  So take the moles of K2O and divide by the liters, which is 0.150L in this case.

(0.0159 moles K2)/0.150 L  = 0.106 M K2O

Answer:

1.이산화탄소

2.낮은

3.높은

4.쓰레기

5.빠른

6.산소

7입자

Explanation:

내가 틀렸다면 나를 수정하는 데 도움이되기를 바랍니다.

Answer:

11

Explanation:

because jrjrbd kiubsk luvs jd8uga

Answer:

Argon, neon, krypton, Xenon, Radon and Organesson

Answer:Reigns then hit two Superman punches and a spear to score the pinfall. Result: Roman Reigns defeated John Cena via pinfall to retain the title.

Explanation:

Answer: Roman Reigns I hope this helps

Explanation:

Eleven matches were contested at the event, including one match on the Kickoff pre-show. In the main event, Roman Reigns defeated John Cena to retain SmackDown's Universal Championship.

Answer:

an article or substance that is manufactured or refined for sale. or a thing or person that is the result of an action or process.

Explanation:

Answer:

product is the item offered for sale. A product can be a service or an item. It can be physical or in virtual or cyber form. Every product is made at a cost and each is sold at a price. The price that can be charged depends on the market, the quality, the marketing and the segment that is targeted.

The most likely ion of Aluminum is Al³⁺ (group 3A) since losing three electrons is the most energetically favorable way for it to follow the octet rule.

Because the charge on ions is equivalent to their oxidation state, then +3 is the most likely oxidation number of Aluminum.

Answer:

29.3 years to live

Explanation:

Phosephurus loses 32 years at his life -32

then he gains 14.3 years back and another 57.2 years

totaling 29.3 years he will live

Answer:

True

Explanation:

Halogens are very stable because they have a full outer shell of 8

true or false?

Brainiest plz and hope this answer helped let me know if you need any more help I am glad to help!

It's true!

Answer:

No

Explanation:

The same amount of matter is present before and after chemical and physical changes. Matter cannot be created or destroyed

Answer:

none is created or destroyed. This concept is called the Law of Conservation of Mass.

Answer:

because of the reflection that the Sun makes on the water after it rained.

bởi vì sự phản chiếu mà mặt trời tạo ra trên mặt nước sau khi trời mưa

Explanation:

Answer:

Democritus was the first person to hypothesize the existence of atoms (the idea that you can't keep dividing matter forever). Scientists did eventually prove the existence of atoms. however, they aren't completley how he imagined them.

Answer:

I think it's true

Answer: falso

Explanation:

Taking into account the definition of density and Archimedes' principle, the beginner bowling ball will float on the water.

But first it is neccesary to know that density is a quantity referred to the amount of mass in a certain volume of a substance or a solid object.

In other words, the density is the relationship between the weight (mass) of a substance and the volume that the same substance occupies.

The expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

[tex]density=\frac{mass}{volume}[/tex]

In this case, a beginner's bowling ball has a mass of 4.9 kg and a volume of 5.4 liters. This is:

Replacing in the definition of density:

[tex]density=\frac{4900 g}{5400 mL}[/tex]

Solving:

density=0.907 [tex]\frac{g}{mL}[/tex]

On the other hand, Archimedes' principle says that an object immersed in a liquid experiences an upward vertical force equal to the weight of the volume of the dislodged liquid.

The sinking or floating of an object is determined by its density with respect to that of the liquid in which it is submerged.

Considering water as the liquid where the object is submerged in this case, an object with a higher density than water will sink. In contrast, an object with a lower density than water will float.

In this case, considering that water has a density of 1 [tex]\frac{g}{mL}[/tex], the bowling ball for beginners has a lower density. This indicates that, having a lower density than water, the object will float.

In summary, the beginner bowling ball will float on the water.

Learn more about density:

Explanation:

The molar mass of a compound can be calculated by finding the molar of the individual atoms that combine to make the compound.

Molar mass of compound =

         ∑ (molar mass of element × number of atoms of the element)

∴ Molar mass of dimethylglyoxime

                 = 4C + 8H + 2N + 2O

                 = [(4 × 12.011) + (8 × 1.0080) + (2 × 14.007) + (2 × 15.999)] g/mol

                 = 116.12 g/mol