Which answer is an isotope of 40/20x?

Question Pictured here:

Answer:

c = 5505263.16 J/g.°C

Explanation:

Given data:

Mass of ring = 12 mg (12/1000 = 0.012 g)

Calories used = 30.0 cal (30.0 ×4184 = 125520 J)

Temperature increases = 1.9°C

Specific heat of ring = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

125520 J = 0.012 g×c ×1.9°C

125520 J = 0.0228 g.°C ×c

c = 125520 J /  0.0228 g.°C

c = 5505263.16 J/g.°C

Answer:

Top secret

Explanation:

Top secret because it is circling the word secret on the stack of three so its the secret on the top. It's a play on words or words riddle.

Answer:

I think B. force create matter is right one

Answer:

the answer is c

Explanation:

Answer:

I don't know what you mean by that I just wanted to ask you this: who do u support? Biden or Trump?

Explanation:

Thank you if you answered my question!

Answer:

NaNO3

Explanation:

sodium= Na

Nitrogen= N

and there's 3 oxygens = O3

Answer:

D

Explanation:

Because it's d so yeah

The satellite image where the scientists locate the area by representing the existence of rift valleys.

A rift valley refers to the lowland region where it created at the time when there should be tectonic plates of the earth that should be moved apart or rifted. A rift valley should be lowland region that should be created at the time when earth tectonic plates should be moving part. It should be founded both on the land and at the bottom of the ocean.

Therefore, we can conclude that the option d is correct.

Learn more about area here: https://brainly.com/question/16660726

Answer:

When you add lead nitrate to potassium iodide, their particles combine and create two new compounds, a yellow solid called lead iodide (Pbl2) and a white solid called potassium nitrate (KNO3). Yellow clouds indicate that the chemical change has taken place.

Answer: Answer in explanation

Explanation:

If you're talking about *stars* in general, as mass increases, so does the luminosity - it burns brighter and faster.  A *star* will not increase it's mass generally, unless something falls into it;  and generally - even if a *planet* falls into a star (take our sun, for example - you could plunge the Earth into the sun, and you've only increased the sun's mass by 1/1,300,000th... )  

As radius increases, for example, when our sun slips into the Red Giant phase, it will become redder, but the surface will have increased 100,000 times - so, the amount of light it puts out now from a square meter, compared to how much it will put out when it's a red giant will be reduced 20 fold;  however, there's so much ***more*** area, that the overall brightness of our sun will increase dramatically.

Answer:nut

Explanation:bust

Answer 2, 3, 2

Explanation:

Answer: You have three times the number of particles as in 12 grams of carbon-12. (B)

Answer:

See explanation

Explanation:

The reaction to be considered is shown below;

H2CO3<------->CO2 + H2O

We know  that when a constraint such as a sudden change in concentration, pressure or temperature is imposed on  a reaction system in equilibrium, the system has to adjust itself by shifting in a particular direction in order to cancel the constraint.

Now, if we remove CO2, the equilibrium position must shift to the right by the decomposition of more H2CO3 to establish equilibrium again.

Answer:

During the process of electrolysis, ions that are formed will get discharged to reform neutral atoms at the state of electrons, whereas the preferential meaning which in case one or more kind of cations and anions in the electrolyte, the one with the higher concentration or at a lower position activity will get discharged first.

Function

Genes decide almost everything about a living being. One or more genes can affect a specific trait. Genes may interact with an individual’s environment too and change what the gene makes.

Genes affect hundreds of internal and external factors, such as whether a person will get a particular color of eyes or what diseases they may develop.

Some diseases, such as sickle-cell anemia and Huntington’s disease, are inherited, and these are also affected by genes.

Purpose

The purpose of genes is to store information.

Each gene contains the information required to build specific proteins needed in an organism.

Hope this helps !!

Answer:

Use dilution equation:  

M1V1 = M2V2  

1.0*V1 = 2.4*500  

V1 = 1200mL  

You already have 500mL KCl solution . You must add: 1200mL - 500mL = 700mL water.

Explanation:

Hope this helps!!! <3

Answer:

1st paragraph:

1.compound 2.physical 3.elements 4.water 5. gas 6.white 7. season 8.ratio 9.formula 10.elements 11.atoms 12.subscript 13.one

2nd paragraph

1.stable 2.many/reactive 3.eight 4.helium 5.seven 6.outer 7.one 8.level 9. compounds 10.reactive 11. seven 12. Eight 13.lose 14.gain 15. Share 16.compounds 17. atoms

Explanation:

I just did the 1st page. Gimme a min and I'll do the second.

Answer:

A

Explanation:

Answer:

they represent their own atoms

Answer:

Elements

Explanation:

Answer:

Separate the reaction into half equations

Explanation:

When we want to balance redox equations, we must take cognizance of the fact that a specie was oxidized and another specie was reduced.

Hence we must identify the specie that was oxidized and the one that was reduced and then break up the whole redox reaction into oxidation and reduction half equations.

Answer:

D. finding the oxidation states of atoms

Explanation:

i did the review on edge2020

Answer: 828.57mL

Explanation:

First and foremost, we need to convert the degree in Celcius to Kelvin, this will be C + 273 = K

Temperature 1 = 0 + 273 = 273K.

Temperature 2 = 75 + 273 = 348K.

We then plug the values gotten into.the formula which will give:

650/273 = x/348

X = (650 × 348) / 273

X = 828.57mL

The volume that the sample will occupy at 75C would be 828.57mL.

Answer:

[tex]\boxed {\boxed {\sf Option: B }}[/tex]

Explanation:

The excess reactant is the reactant left over after a chemical reaction. It is found when the limiting reactant is completely done. The answer to your question is option B. The excess reactant is what is found after the reaction is complete. Our answer is Option B.

Answer:B

Explanation: Excess Reactant - The reactant in a chemical reaction that remains when a reaction stops when the limiting reactant is completely consumed consumed. The excess reactant remains because there is nothing with which it can react.

Answer:

This is because their is a repulsive force between the magnetic north and the geographical north since the rod experiences the Earth's magnetic field.

The iron rod deflects at an angle (angle of dip) from the horizontal.

Answer:

Ur answer is c I think

Explanation:

Answer:

I believe the answer is B

Answer:

Explanation:

????? i am having trouble according this

Answer:

Cohesive and adhesive forces.

further, we also have vander waal's forces of attraction

Explanation:

Electronic Configuration of First 30 Elements with Atomic Numbers

Atomic Number Name of the Element Electronic Configuration

18 Argon (Ar) [Ne] 3s2 3p6

19 Potassium (K) [Ar] 4s1

20 Calcium (Ca) [Ar] 4s2

21 Scandium (Sc) [Ar] 3d1 4s2

26 more rows

Explanation:

NUMBER ELEMENT ELECTRON CONFIGURATION

1 Hydrogen 1s1

2 Helium 1s2

3 Lithium [He]2s1

4 Beryllium [He]2s2

5 Boron [He]2s22p1

6 Carbon [He]2s22p2

7 Nitrogen [He]2s22p3

8 Oxygen [He]2s22p4

9 Fluorine [He]2s22p5

10 Neon [He]2s22p6

11 Sodium [Ne]3s1

12 Magnesium [Ne]3s2

13 Aluminum [Ne]3s23p1

14 Silicon [Ne]3s23p2

15 Phosphorus [Ne]3s23p3

16 Sulfur [Ne]3s23p4

17 Chlorine [Ne]3s23p5

18 Argon [Ne]3s23p6

19 Potassium [Ar]4s1

20 Calcium [Ar]4s2

Answer:

Sunlight

Explanation:

My science teacher has told us that plants need the sun to photosynthesis. And even though their is a lot of sun, they need to compete for it still.

Answer:

Nitrogen and oxygen are by far the most common; dry air is composed of about 78% nitrogen (N 2) and about 21% oxygen (O 2).

In short, Nitrogen