Draw the Lewis Structure for Calcium, Oxygen, and Lead.

Answer:

It's B

Explanation:

It collects data using a seismograph.

Answer:

10. F

11. A

12. B

13. C

14. G

15. A

16. F

17. B

18. D

19. E

20. B

Explanation:

im sorry

ik some are probably incorrect

Answer:

kinetic energy

Explanation:

anything moving contains kinetic energy and anything standing still has potential.

I think that A or C is the answer.

Answer:

Your answer should be:

1. No

2. Yes

3. No

4. Yes

5. No

Explanation:

I hope this answered your question.

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Have a wonderful day!

Answer:

I dont know

Explanation:

ONLY HEAR FOR POINts

Answer:

i think protons and neutrons

Explanation:

im not sure tho

Answer:

Atomic mass is calculated by adding the masses of protons and neutrons in a given atom of an element.

Explanation:

For any given isotope, the sum of the numbers of protons and neutrons in the nucleus is called the mass number. This is because each proton and each neutron weigh one atomic mass unit (amu). By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the atom.

Atomic mass is (just slightly less than) the sum of the masses of protons and neutrons in a given atom of an element.

hope this helps and is correct! :)

Answer:

At night animals like owls and bats will go out and hunt.

When its nighttime It will get cooler out because the sun is on the other side of the earth.

During the day most animals are awake.

Answer:

Night:

1. All the stars (except the Sun) are in the sky

2. The sky is usually black

3. It's usually colder at this time

Day:

4. The sky is usually blue in the morning

5. The clouds are only visible in the day

Both:

6. It can rain at either time

7. The sun and moon are both usually glowing

Explanation:

Answer:

Our Sun which is a huge star and all the planets around it are part of the Milky Way Galaxy. These stars form a large disk whose diameter is about 100,000 light years. Our Solar System is about 25,000 light years away from the center of our galaxy. We live in the suburbs of our galaxy.

Explanation:

There are various types of studies. Because the Milky Way is a large barred spiral galaxy, it is known to be part of a larger system.

A galaxy is a massive mass of gas, dust, and billions of stars and solar systems held together by gravity.

There are various types of research. The Milky Way is known to be part of a larger system because it is a large barred spiral galaxy. The Milky Way Galaxy contains all of the stars that can be seen in the night sky.

Our Solar System is known to be made up of our star, the Sun, and its orbiting planets, which include the Earth as well as numerous moons, asteroids, and so on.

Our Sun is thought to be one of hundreds of billions of stars in our Milky Way Galaxy. The universe is said to consist of all galaxies, which have been discovered to number in the billions.

Thus, this way, in which the galaxy part of a larger system.

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Answer:

it's spring tide.

Explanation:

The smallest tidal ranges are less than 1 m (3 feet). The highest tides, called spring tides, are formed when the earth, sun and moon are lined up in a row. This happens every two weeks during a new moon or full moon. Smaller tides, called neap tides, are formed when the earth, sun and moon form a right angle.

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Answer:

S.

Explanation:

North and South must always be opposite of each other.

The cut end of the short piece of the magnet will be labeled as South (S). Therefore, option (B) is correct.

A magnet can be described as a material that produces a magnetic field and this magnetic field is responsible for the notable property of a magnet. Properties such as a force that pulls ferromagnetic materials, such as iron, steel, cobalt, etc., and attracts or repels other magnets.

A permanent magnet can be described as an object made from a material that is magnetized and generates its own magnetic field. Materials that can be magnetized, are strongly attracted to a magnet, are called ferromagnetic and include the elements iron, nickel, and cobalt.

The poles of a bar magnet cannot be separated by just cutting the magnet, the resulting pieces of magnet form a new set of North and South poles within them. Therefore, the small piece of the magnet will also have a set of South and north poles.

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Answer:

D. When the stamen produces pollen, the ovule receives pollen to produce seeds and fruit.

Explanation:

The stamen is the male reproductive organ of a plant and the ovule is a female reproductive part of a plant. (So we can rule out the first answer choice because stamen is in male plants not female plants).

The stamen produces pollen which sticks to pollinators such as bees when they land on the male plant. (So we can rule out the third one because pollen is produced by stamen and not received).

When the pollinators travel to female plants, the pollen gets deposited into the ovule which then produces seeds and fruit. (So we can rule out the second one because pollen is transported from one plant to the other by pollinators, not by the plants themselves).

Hope this is correct and helps!

I would appreciate it if you could give brainliest :)

The flowering plants reproduce sexually through a process known as the pollination. When the stamen produces pollen, the ovule receives pollen to produce seeds and fruit. The correct option is D.

The process of transfer of pollen grains from the male anther of a flower to the female stigma is defined as the pollination. It can occur either within a flower or between the flowers of the same plant or flowers of different plants.

The male sex organ of a flower is stamen and the female part is pistil. The anther of the stamen contains pollen which consist of the male gametes. The movement of pollen to the stigma causes reproduction.

The innermost part of a flower is called the carpel. It contains ovary where eggs or ovules are located. The pollen from anther enter the ovary and fertilize an ovule in order to develop a seed.

Thus the correct option is D.

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Answer:

The mass of the object remains same everywhere.It does not change in any of the location. Jaden's mass will be 45 kg on Jupiter.

Explanation:

Answer:

They violated safety procedures by not reading the instructions, which could have put everyone in danger because they're dealing with chemicals and if you mix the wrong chemicals together it could explode or release some type of gas that is not good to breathe in.

Explanation:

They violated safety procedures by not reading the instructions, which could have put everyone in danger because without knowing they are using chemicals and it may lead to explosion.

There are several safety measures that should be taken while performing an experiment in lab such as avoid drink and food while working in laboratory and wear PPE kit to keep yourself safe.

Never work lonely in the lab because this condition will turn into danger situation as suppose a person works lonely and due to reaction of some chemical the person become unconsious than there is no one to help him.

Always wear gloves, PPE kit, proper shoes, lab coat of full sleeves with safety goggles. All these things will helps to keep a person safe in lab while experiment.

Therefore,they violated safety procedures by not reading the instructions, which could have put everyone in danger because without knowing they are using chemicals and it may lead to explosion.

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Answer:

1. Earth

2. Sun

3. Sun

4. Earth

5. Earth

6.Sun

7. Earth

Explanation:

I'm a lil sus of 3 and 6 but I'm pretty sure it's right.

Answer:

- 8.89 [tex]m/s^{2}[/tex]

Explanation:

[tex]\frac{(Vf-Vo)}{time}[/tex] =  [tex]\frac{(45-85 m/s)}{4.5s}[/tex] = - 8.89 [tex]m/s^{2}[/tex]

Answer:

L I'll help u

Explanation:

Answer:A

Explanation:

Answer:

A. Acid liberates hydroxyl ions in an aqueous solution

Explanation:

When dissolved in water, acids release hydrogen (H⁺) or hydroxide (H₃O⁺) ions. Hydroxyl (OH⁻) ions are released when a base dissolves in water.

Hope that helps.

Answer:

the last one

Explanation:

All of the other ones are false

Answer:

is a compound made of oxygen and carbon

Explanation:

Answer:

An ion is a charged atom or molecule. It is charged because the number of electrons do not equal the number of protons in the atom or molecule. An atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

Explanation:

hope it's right

Answer:

D

Explanation:

Hope you get it right

Explanation:

A compound is made out of 2 or more elements.

Oxygen (O2), Chlorine (Cl2) and Aluminium (Al) are all elements.

Water (H2O) is made out of hydrogen and oxygen, therefore water is a compound. (A)

There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, the correct option is option A that is water.

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

An ionic compound is a metal and nonmetal combined compound.  Ionic compound are very hard. They have high melting and boiling point because of strong ion bond. Water is a compound among all the given options. Water exits in three states solid (ice), liquid (water) and vapour.

Therefore, the correct option is option A.

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During the phase change of 2 grams water to solid-state, there has been the release of energy, and the process will be freezing. Thus option B is correct.

The release of the amount of heat by the sample has been able to change the state of the matter from the loosely bounded to the combat state.

Thus, during the phase change of 2 grams water to solid-state, there has been the release of energy, and the process will be freezing. Thus option B is correct.

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Answer:

-0.75 [tex]m/s^{2}[/tex]

Explanation:

a = [tex]\frac{v2-v1}{t}[/tex] = [tex]\frac{15 m/s - 24m/s}{12s}[/tex] = -0.75 [tex]m/s^{2}[/tex]

Hope this helps!!