A metal X loses 2 electrons and a non-metal Y gains 1 electron. Show the electron dot structure of compound formed between them. Is it ionic or covalent? Does it have high or low melting point? Will it conduct electricity in solid state or in aqueous solution and why? Will it be soluble in water?

Answer:

Pentane

Explanation:

Answer:

Hexane

Explanation:

alkane

single bonds and saturated hydrocarbon

the formula is C6H14

Answer:

The efficiency rating of the jack is 0.067.

Explanation:

We have, a person applies a force of 200 N over 1.5 m to a jack. The jack exerts a 1000-N force on a car a distance of 0.02 m.

It is required to find the the efficiency rating of the jack. It is equal to the ratio of output work to the ratio of input work. So,

[tex]\eta=\dfrac{1000\times 0.02}{200\times 1.5}\\\\\eta=0.067[/tex]

Thus, the efficiency rating of the jack is 0.067.

Answer:

The answer is "W-4 form".

Explanation:

The W-4 form is part of the Internal Revenue Service tax form, which is used to submitted by the U.S. government form the customer to information and his or her tax situation. This form informs the customer of the right amount of tax to deduct from his or her salary.

That's why she filled out a W-4 form and know-how often tax he will subtract in the payroll depending on provisions dealing, dependents, potential tax deductions, and credits, etc.

Answer:

Gravity force (friction towards Marek ).

Explanation:

According to the situation, Marek try to push the box which contains some mass because of sports equipment  

Marek tries to push the box, but gravity tries to the down box on the floor.

So, box and floor create friction towards Marek

.

Answer:

Gravity force

Explanation:

Collision theory

B. in edge

Answer:  c

Explanation:

their is less matter to insulate so the smaller the amount of water the easier the temperature can be changed

Answer:

13,000 mg

Explanation:

40mg for every mL so you take 40x325 to wind up with 13,000mg of insulin or 13 grams.

Answer:

naturally, through diet or exercise or drugs, specifically receptor antagonists

Explanation:

diet/exercise - diet is self explanatory, since a healthy diet would mean that your body would be balanced, and wouldn't struggle with producing NTs

drugs - any type of drug will mimic the behavior of NTs, but receptor antagonists specifically will increase the concentration of neurotransmitters in a synapse. Antagonists would block the receptors, and thus the NTs that were intended for the blocked space, will not have anywhere to go. As a result, the NTs will stay in the synapse, and cause an increase in the concentration of NTs.

ps: you'd have more luck asking this question in biology

Answer:

35.5450 will be rounded to 35.55

Explanation:

=35.5450

if the last digit is less than 5 then it will be ignored

=35.545

when the dropping digit is 5 then the retaining digit will increse by a factor of 1

=35.55

i hope this will help you

Answer:

35.5450 to 4 significant figures is 35.55

Hope this helps.

Answer:

The new pressure is 8 times the original pressure.

Explanation:

Data obtained from the question include:

Initial volume (V1) = 4L

Final volume (V2) = 0.5L

Initial pressure (P1) = P

Final pressure (P2) =..?

The new pressure can be obtained by using the Boyle's law as shown below:

P1V1 = P2V2

P x 4 = P2 x 0.5

Divide both side by 0.5

P2 = P x 4 / 0.5

P2 = 8P

Therefore, the new pressure is 8 times the original pressure.

Answer:

Well, Here's some factors:

The concentrations of the reactants and the products.

The temperature of the system.  

And, The partial pressures of the gases involved.

Good Luck!~

Answer:

CH4 + 2O2 → CO2 + 2H2O

Explanation:

CH4 + O2 → CO2 + H2O

Left Side

C = 1

H = 4

O = 2

Right Side

C = 1

H = 2

O = 3

Ok so we'll balance the H first

CH4 + O2 → CO2 + 2H2O

Left Side

C = 1

H = 4

O = 2

Right Side

C = 1

H = 4

O = 4

Now we'll balance the O

CH4 + 2O2 → CO2 + 2H2O

Left Side

C = 1

H = 4

O = 4

Right Side

C = 1

H = 4

O = 4

Answer:

All of the above

Explanation:

Answer:

All of the above

Explanation:

Earth is the only planet in our solar system that has a large amount of liquid water. About 74% of the surface of Earth is covered by liquid or frozen water. Because of this, people sometimes call it the blue planet. Because of its water, Earth is home to millions of species of plants and animals

Thank me later

Hope this helps!!!

Answer:

By using magnet.

Explanation:

Put sand and zinc in the bowl.

Take a magnet an bring it close to the bowl.

The zinc from the sand will be attracted towards the magnet.

In this way it will be separated.

Answer: the molar mass is 74.092 g/mol

Explanation:

Answer:

the three products of destructive distillation of coal are:-

1. coal gas

2. coke

3. ammonia liquor

Answer:

Coke, coal gas, gas carbon, coal tar, ammonia liquor, and coal oil.

Explanation:

Answer:

1. B - Both are monbasic.

B - Both are monbasic.2. B - fast but contains more water than acid

B - Both are monbasic.2. B - fast but contains more water than acid3. D - Acids made from oxides of non metals

B - Both are monbasic.2. B - fast but contains more water than acid3. D - Acids made from oxides of non metals4. C. Zn(OH)2

B - Both are monbasic.2. B - fast but contains more water than acid3. D - Acids made from oxides of non metals4. C. Zn(OH)25. C - Neutralization

B - Both are monbasic.2. B - fast but contains more water than acid3. D - Acids made from oxides of non metals4. C. Zn(OH)25. C - Neutralization6. B - H3O+

Explanation:

According to reaserch,

According to reaserch,An neutralization reaction can be defined as a chemical reaction in which an acid and base quantitatively react together to form a salt and water as products. In a neutralization reaction, there is a combination of H+ ions and OH– ions which form wa acid anhydride is an acid anhydride that is an organic compound.

According to reaserch,An neutralization reaction can be defined as a chemical reaction in which an acid and base quantitatively react together to form a salt and water as products. In a neutralization reaction, there is a combination of H+ ions and OH– ions which form wa acid anhydride is an acid anhydride that is an organic compound. An acid anhydride is a compound that has two acyl groups bonded to the same oxygen atom.

The time interval in which a substance exists as both liquid and solid is called ; Triple point

A triple point is a time interval in a substance when the pressure and temperature of the substance causes the substance to exist in more than one phase at a time. Substances that exhibit this characteristic are called non-Newtonian fluids.

A good example of a substance that exist in both liquid and solid form within this time interval is Potassium.

Hence we can conclude that the time interval in which a substance exists as both liquid and solid is called triple point.

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Although your question has some missing data a general answer within the scope of your answer is provided above

Answer:

s and p

Explanation:

The main group elements includes elements in Groups 1-2 and Groups 13-18. Groups 1-2 on the periodic table are the s block elements which means the valence electrons are located in the s suborbital. Groups 13-18 on the periodic table are the p block elements which means the valence electrons are located in the s and p orbitals.

Answer:

k

Explanation:

2K (s) + 2H2O (l) produces 2KOH (aq) produces H2 (g),

2K (s) + 2H2O (l) --> 2KOH (aq) + H2 (g)

(s) = solid

(l) = liquid

(g) = gas

Left hand side are reactants

2K (s) + 2H2O (l)

Right hand side are products

2KOH (aq) + H2 (g)

Answer:

The resulting atom is argon

Explanation:

Positron emission is a type of radioactive decay known as beta plus decay. This reaction is characterized by an element having an increase in the number of neutrons and a decrease in the number of protons.

This affects the atomic number in which it is decreased by one while the mass number remains unchanged.

Answer:

C

Explanation:

Both proton and neutron have a mass of 1 atomic unit. ( proton positive but neutron no charge) .

even though they both has a mass of 1 amu , they slightly differ in mass. neutron has slightly greater mass than proton .

but electrons are very smaller than protons and neutrons. electron has 1/1840 mass of proton. so they are very smaller than protons.

answer is C

Answer:

Ga

Explanation:

The fourth period element that is able to form a compound whose lewis structure is XO3 with X as the central atom and three oxygen atoms must be an element in group thirteen in the periodic table.

Gallium is known to form a trioxo- compound in which all gallium atoms are connected to oxygen atoms via double bonds. We don't have this type of compound formed by any other atom listed among the options hence the answer given above. The compound is written as GaO3.

The central atom is a gallium atom, which has the symbol Ga.

We can arrive at this answer because:

Among the response options, Ga is the only one that has 2 electrons in the valence layer, being able to form bonds with oxygen.

More information:

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Answer:

[tex]n=4.1mol[/tex]

Explanation:

Hello,

In this case, we can use the ideal gas equation:

[tex]PV=nRT[/tex]

So we know the temperature, pressure and volume, therefore we can easily compute the required moles as shown below:

[tex]n=\frac{PV}{RT}=\frac{2.0atm*101L}{0.082\frac{atm*L}{mol*K}*600K} \\\\n=4.1mol[/tex]

Best regards.

Answer:

4.1 moles

Explanation:

The following data were obtained from the question.

Number of mole (n) =..?

Volume (V) = 101L

Pressure (P) = 2atm

Temperature (T) = 600K

Gas constant (R) = 0.0821atm.L/Kmol

The number of mole of the gas can be obtained by using the ideal gas equation as illustrated below:

PV = nRT

2 x 101 = n x 0.0821 x 600

Divide both side by 0.0821 x 600

n = (2x 101) / (0.0821 x 600)

n = 4.1 moles.

Therefore, the number of mole of the gas in the container is 4.1 moles

The effect of carbon dioxide that is coming out of volcanoes can be global warming.

CO2 has been demonstrated to be a critical supporter of air contamination, playing a significant job in the greenhouse effect. That is on the grounds that carbon dioxide traps rays at the ground level, bringing about ground-level ozone. That keeps the earth from cooling during the evening and warms sea waters.

More carbon dioxide in the atmosphere will lead to global warming.

Find more information about global warming here:

brainly.com/question/3553382

The effect of carbon dioxide that is coming out of volcanoes can be global warming.

[tex]CO_2[/tex] has been demonstrated to be a critical supporter of air contamination, playing a significant job in the greenhouse effect.

That is on the grounds that carbon dioxide traps rays at the ground level, bringing about ground-level ozone.

That keeps the earth from cooling during the evening and warms sea waters.

More carbon dioxide in the atmosphere will lead to global warming.

Find more information about global warming here:

brainly.com/question/3553382

#SPJ2

Answer:

B

Explanation:

Answer:

NH^4NO^3

Explanation:

Ammonium nitrate, (NH4NO3), a salt of ammonia and nitric acid, used widely in fertilizers and explosives.