11. What is the mass number
of an element if its atom
contains 10 protons, 10
electron, and 12 neutrons?
A 12
C20
D. 32​

Answer:

39

Explanation:

Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.

Answer:

Answer: 12

Explanation:

\({ \sf{3Na _{2} O +2 AIBr _{3} \rightarrow 6NaBr + AI _{2} O _{3} }}\)

\({ \tt{sum = 3 + 2 + 6 + 1}} \\ = { \tt{12}}\)

Answer:

12

Explanation:

3+2+6+1

Answer:

In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.

Explanation:

ctrl c this than ctrl v it in a serch bar its a fun game :) http://agar.rip/play/ this is to https://evoworld.io/play?loc=EU

Answer

The thermal energy of the molecule will increase.

Explanation:

Increasing the speed at which the particles are moving cause atoms and molecules to move faster and collide with each other. This increases the thermal energy.

Answer:

Explanation:

Why is the use of the inquiry process (or scientific method) a practical way to approach science?

1. The inquiry process is a practical way to approach science because the inquiry process begins by asking questions and moving on from there.  

2. In science it is important to investigate phenomena or certain subjects by posing questions that you would like to answer through the scientific method.

3.  Therefore, the inquiry method is connected because to inquire on a subject requires raising questions which is an essential step in scientific discovery.

Why are scientific theories modified, but seldom discarded?

1.  If a theory cannot explain new evidence or observations then the theory is revised or even thrown

out, but if the theory still explains a wide range of observations and evidence then it is revised

rather than discarded.

2.  it will still hold some value as above as you learn more you tweak your hypothesis to fit the ever expanding amount of info and data you collect and assimilate

3.  The only way they ever go away is if people stop working on them.

How has science and technology influenced everyday life?

1.  computers

2.  health care

3. bikes

None of these would exist today without science or technology

Answer:

Explanation:

Why is the use of the inquiry process (or scientific method) a practical way to approach science?1. The inquiry process is a practical way to approach science because the inquiry process begins by asking questions and moving on from there. 2. In science it is important to investigate phenomena or certain subjects by posing questions that you would like to answer through the scientific method.3. Therefore, the inquiry method is connected because to inquire on a subject requires raising questions which is an essential step in scientific discovery.Why are scientific theories modified, but seldom discarded?1. If a theory cannot explain new evidence or observations then the theory is revised or even thrownout, but if the theory still explains a wide range of observations and evidence then it is revisedrather than discarded.2. it will still hold some value as above as you learn more you tweak your hypothesis to fit the ever expanding amount of info and data you collect and assimilate3. The only way they ever go away is if people stop working on them.How has science and technology influenced everyday life?1. computers2. health care3. bikesNone of these would exist today without science or technology

Answer:

If you are looking for like a drawing say less.

Answer: The answer is A. Halogens

Explanation:

I hope this helps you :)

Explanation:

biosphere

that is the answer

Answer:

biosphere

I hope it help

The statement that describes an attribute of an artesian well is B. Uses natural pressure.

Artesian wells rely on natural pressure by accessing an underground water source that is enclosed between layers of impermeable rock or clay. The water within the aquifer is naturally pressurized due to the weight of the overlying rock or the slope of the land.

When a well is drilled into the aquifer, this existing pressure allows the water to rise to the surface without the need for a mechanical pump.

This utilization of natural pressure distinguishes artesian wells from other types of wells, as they do not require artificial pumping mechanisms to extract water.

To learn more about wells,

https://brainly.com/question/31566107

Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome

Explanation:

rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.

Answer:

there is not

Explanation:

Because of the ionization that is going on isn't neutral there's no way

Answer: its this image

Explanation: it is

Answer:

True

Explanation:

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

Answer:

matter consists of various types of particles, each with mass and size.

Explanation:

human body , almirah , water bottel , clock , fan etc

The equilibrium of the reaction (a), (d), and (e) will shift to the left side when the temperature is increased.

Equilibrium law states that if the dynamic equilibrium gets disturbed by changing the conditions such as temperature, pressure, etc., then to reestablish equilibrium, the position of equilibrium will shift to counteract the change.

As we know that if the change of enthalpy (ΔH) is negative then the reaction is exothermic in nature and if the change in the enthalpy is positive the reaction is endothermic in nature.

Therefore, the reaction (a), (d), and (e) are exothermic reactions, and the reaction (b) and (c) are endothermic reactions.

On increasing the temperature, if the forward reaction is exothermic. Then the equilibrium will shift to the reactant side or left so that excess heat will be absorbed in the backward reaction.

Therefore,  when the temperature is increased, the reaction (a), (d), and (e) will shift the equilibria to the left side.

Learn more about equilibrium law, here:

https://brainly.com/question/10567558

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Answer:

B

Explanation:

Heat will flow from water to copper until both reach same temperature.

Answer: B.) Heat will flow from the water in the glass to the copper until both reach the same temperature

Explanation: i took the flvs test and got it right

Answer:

A. d

B. a

C. c

D. d

Explanation:

A. The student traveled 800m overall

B. The student ends 200m from where they started

C. (distance/ overall time) 800/100 = 8m/sec.

D. I am not 100% sure about this one, but it seems to be the most likely

Answer:

A

Explanation:

Answer:

P three particles that make an atom are protons, electrons, and neutrons.

Explanation:

The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).

Answer:

protons, electrons, and neutrons.

Explanation:

electrons revolve around protons and neutrons

Answer:

When an organism use chemical energy to move, some of it is lost as metabolic heat.

The term chemical energy is defined as the energy which is stored in the bonds of chemical compounds. It is given in the chemical reaction and mostly produces heat as a by-product, known as an exothermic reaction.

Energy changes as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are taken by organisms from the next level.

Thus, Metabolic heat is lost when an organism uses chemical energy to move.

...

Answer:

When an organism use chemical energy to move, some of it is lost as metabolic heat.

I think this is it, hope this helps!

Answer:

The net force is 2 N in the direction the book is being pushed.

Explanation:

22 grams, 5 x 3 x 1 = 15 / volume. mass (330) ÷ 15 (volume) = 22 grams (density)

Answer:

22g

Explanation:

You can use the formula to get density but to get there you need to know volume.  Volume is length x width x height. V= 3x5x1.  Volume is 15.  Then you take your mass and divide it by volume to find density.  D= 330/15.  The density is 22g.

Answer:

1. Absorbent

2. Breathable.

3. Hypoallergenic.

4. Non-toxic.

5. High wet modulus (stronger when wet)

6. Biodegradable.

7. Excellent wicking.

8. Wipe dry performance.

Answer:

Stringy, light, spherical, absorbant, small, and thread-like (because you can make cotton into clothes).

I am gonna leave a comment.....

Answer:

Civic expression includes all the ways citizens share their opinions and show concern for their community. It can take the form of action, such as voting, but it can also be demonstrated through writing or spoken text. It is a critical part of American society.

Explanation:

Answer: Doppler radar, Satellite data, Radiosondes, Automated surface-observing systems,Supercomputers, AWIPS

Explanation:

Answer:

Kinetic energy

Explanation:

Kinetic energy is energy when something is in motion