let me know the answer to this oneeee

Answer:

ANSWER D IS CORRECT .(the attraction between positive and negative ions in an ionic bold.

Explanation:

The attraction between positive and negative ions in an ionic bond. Hence, option D is correct.

The electrostatic force is an attractive and repulsive force between particles caused due to their electric charges.

Ionic bonding is the attraction between positively- and negatively-charged ions. These oppositely charged ions attract each other to form ionic networks (or lattices). Electrostatics explains why this happens: opposite charges attract and as charges repel.

Hence, option D is correct.

Learn more about electrostatic attraction here:

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1.matter is made up of small particles

2.particles of matter are in constant random motion

Explanation:

1.Particles eg of salt can be crashed into smaller particles 2.When you sprinkle pollen grains on water in a beaker and observe using a hand lens U'll see they are moving randomly

Answer:

Mg(OH)2 + 2KCL > 2 KOH +MgCl2

Answer:

a cell or battery

Explanation:

this is because a voltaic cell is such a cell where chemical energy gets converted to electrical energy. the energy conversion in the case of an electrolytic cell is from electric to chemical (battery supplies electrons to the anode respectively). So, I feel by adding a cell or battery, we can change the way energy conversion takes place, thereby changing the process.

Answer:

c. iron

Explanation:

iron's atomic number is 26

Avogadro's Number and the Mole. The mole is represented by Avogadro's number, which is 6.022×1023 atoms or molecules per mol.

Answer:

The distance in kilometer that Ted will go if he runs at the same pace for 285 minutes is 60km

Step-by-step explanation:

It was given that Ted Ted runs 20 km in 95 minutes, so for us to know how many kilometers he runs at the same pace for 285 minutes by using proportion.

For Ted to run 20 km in 95 minutes.

[tex]Speed=Distance/Time[/tex]

where given distance= 20km

Given time =95minutes

Speed=20/95 .............eqn(1)

To calculate the distance in kilometers Ted will go if he runs at the same pace for 285 minutes, then

Speed= K/225 ...............eqn(2)

Let us represent distance with 'K'

Given time 225minutes

Equating eqn(1) and eqn(2)

Hence the proportion model that Ted could use in modelling this situation is this;

[tex]20/95=K/225[/tex]

Cross multiply

K×95=20×225

[tex]K=60[/tex]

The distance in kilometer that Ted will go if

he runs at the same pace for 285 minutes is 60km

Answer:

true

Explanation:

Answer:

I guess the 1st one idk

Answer:

89.7 billion in scientific notation = 8.97 × 1010.

Explanation:

Answer:

Erosion occurs through deflation, and sand that was picked up is deposited against an obstruction.

Explanation:

Erosion can be defined as a geological process which involves the wearing away of earth material and transportation of these material  to another location by Natural agents such as wind and water. Erosion involves removal of top soil, rocks and other earth particles by action of wind, glacier and water.

Wind causes erosion by deflation. Deflation is the actual removal of grain of rocks . Generally, it s the lowering of land surface that happens as a result of removal of surface particles(sands grains) by wind. Deflation is usually prevalent in arid areas. This sand can later be picked up and deposited to form sand dunes . Sand dunes are mounds of sand formed by wind . This sands are sheltered by an obstacle. And sand dunes are prevalent in desert and or along the beach. The sand dune grows as sand accumulate.

The way in which erosion and deposition work together to form sand dunes is: Erosion occurs through deflation, and sand that was picked up is deposited against an obstruction.

Exogenic processes refer to the various processes that occur at or near the surface of planet Earth due to the action (influence) of exogenic forces or geomorphic agents.

In Geology, the five (5) evidence of exogenic processes on Earth's surface include the following:

Deposition is typically a consequence of erosion and it usually result in the laying down of sediment on a landform (landmass), which sometimes make the foundation of buildings stronger to withstand stress.

The formation of sand dunes is generally caused as a result of the effect of both erosion and deposition. Sand dunes are formed when sands are eroded from rocks through deflation, which leads to an accumulation of more sand.

Furthermore, the accumulated sands are picked up by strong winds and then deposited in another location against an obstruction.

Read more on sand dunes here: https://brainly.com/question/4215439

Answer:

Answer:

The answer is B.

Explanation:

In the reaction above, Sulphuric acid is an acid and Sodium hydroxide is an alkaline. It will produce salt and water in the product side.

Answer:

A. Their numbers of atoms

Explanation:

Answer: 127.5ml

Explanation:

To calculate the volume of acid, we use the equation given by neutralization reaction:

[tex]n_1M_1V_1=n_2M_2V_2[/tex]

where,

[tex]n_1,M_1\text{ and }V_1[/tex] are the n-factor, molarity and volume of acid which is [tex]HNO_3[/tex]

[tex]n_2,M_2\text{ and }V_2[/tex] are the n-factor, molarity and volume of base which is KOH.

We are given:

[tex]n_1=1\\M_1=0.5M\\V_1=?mL\\n_2=1\\M_2=0.75M\\V_2=85mL[/tex]

Putting values in above equation, we get:

[tex]1\times 0.5\times V_1=1\times 0.75\times 85\\\\V_1=127.5mL[/tex]

Thus 127.5 ml of 0.5M of HNO3 would be needed to react with 85ml of 0.75M of KOH

Answer: 4 FeSO4(s) + O2(g) + 10 H2O(l) ---> 4 Fe(OH)3 + 4 H2SO4

Explanation:

FeSO4(s) + O2(g) + H2O(l) = Fe(OH)3 + H2SO4

In other to balance the equation, the total number of atoms of each element on the Left Hand Side (LHS) of the equation must be equal to the total number of atoms on the  Right Hand Side (RHS) of the equation.

Add the following coefficients to the equation;

FeSO4 = Add 4,  H20 = Add 10,  Fe (OH)3 = Add 4 and H2SO4 = Add 4

By doing this, you will discover that the total number of atoms on bothe sides of the equation are balanced; thus we have;

4 FeSO4(s) + O2(g) + 10 H2O(l) ---> 4 Fe(OH)3 + 4 H2SO4

Answer:

a b, c

Explanation:

starch is a polymer-polymeric carbohydrate

cellulose is also one-straight chain polymer

polyvinylchloride -a synthetic plastic polymer

sun flower-used for folate medication

Answer:

Alpha decay.

Explanation:

When an element undergoes alpha decay, the resulting daughter nuclei will have a decrease of 4 in the mass number and a decrease of 2 in the atomic number.

In the attached photo, 235 92U undergo alpha decay to produce 231 90Th.

Comparing the mass number and atomic number of 235 92U with that of 231 90Th we can see that the mass of 231 90Th reduced by 4 and the atomic number reduce by 2 indicating that the parent nucleus is undergoing alpha decay.

Answer:

Alpha emission

Explanation:

The alpha particle is akin to a helium nucleus hence it is often referred to as a helium nucleus. The alpha particle has four mass units and a charge if +2.

Alpha emission is one of the emissions undergone by radioactive nuclei. When an atom undergoes alpha emission, it is easy to notice because the mass number of the nucleus decreases by four while its atomic number decreases by two. The daughter nucleus is now found two places behind its parent in the periodic table.

An example of alpha emission is shown below;

23592U→42He+23190Th

Thorium is four mass units less than U-235 and two places behind uranium in the periodic table as explained above.

Answer:

nucleus

Explanation:

An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud.

hope that helps!

Answer:

Option B. Yes, there will be one precipitate.

Explanation:

We'll begin by writing the balanced equation for the reaction between aqueous zinc chloride and aqueous sodium carbonate. This is given below:

ZnCl2(aq) + Na2CO3(aq) —> ZnCO3(s) + 2NaCl(aq)

From the equation above, we can see that one precipitate is form i.e zinc carbonate, ZnCO3 as it is insoluble in water.

Therefore, the reaction produces one precipitate.

Answer:

nucleus

Explanation:

Answer:

1, deductive reasoning

2, hypothesis

3, law

4, objective

5, presupposition

6, qualitative

7, quantitative

8, subjective

9, theory

Answer:

Where is the data table?

Answer:

See the explanation

Explanation:

In this question we have to take into account that we have to get the same amount of atoms on both sides, so:

Reaction 1

[tex]BaCl_2~+~H_2SO_4~=>~BaSO_4~+~2HCl[/tex]

We have 1 Ba, 2 Cl, 2 H and 4 O on both sides

Reaction 2

[tex]Ca(OH)_2~+~CO_2~=>~CaCO_3~+~H_2O[/tex]

We have 1 Ca, 2O, 2 H and 1 C on both sides

Reaction 3

[tex]2Al~+~3CuCl_2~=>~2 AlCl_3~+~3Cu[/tex]

We have 2 Al, 3 Cu, and 3 Cl on both sides

Reaction 4

[tex]2SO_2~+~O_2~=>~2SO_3[/tex]

We have 2 A and 6O on both sides

Reaction 5

[tex]2NH_3~+~3CuO~=>~3Cu~+~N_2~+~3H_2O[/tex]

We have 2 N, 3 H, 3 Cu and 3O on both sides.

I hope it helps

Answer:

The signal from the deceleration sensor ignites the gas-generator mixture by an electrical impulse, creating the high-temperature condition necessary for NaN3 to decompose. The nitrogen gas that is generated then fills the airbag. hope that helps love!

Answer:

Hello

The first one is correct.

Good luck

Explanation:

I'm pretty sure it's A)

Answer:

In chemical nomenclature, the IUPAC nomenclature of organic chemistry is a method of organic chemical compounds

Explanation:

IUPAC

Answer:

uip name : propane-1,2,3-triol