Please tell me the answer I will mark you brainliest

Please Tell Me The Answer I Will Mark You Brainliest

Answers

Answer 1

Answer:

Answer is the third one

Explanation:

All living organisms are made up of one or more cells, which are considered the fundamental units of life. Even unicellular organisms are complex! Inside each cell, atoms make up molecules, which make up cell organelles and structures.


Related Questions

the energy level model of the atom was proposed by

Answers

Answer:

Niels Bohr

Explanation:

How many joules of energy are required to melt 423g of water at 0°C?

Answers

Answer: hope this helps mark me BRAINLEST plz ;)

Explanation:42. Practice Problem  How many joules of energy are required to vaporize 423g of water at 100oC and 1atmosphere of pressure. q = mHv m = 423 g Hv = 2260 J/gq = (423g) (2260J/g) = 955,980 J = 956 43. Table T – Heat Formulas

The amount of heat needed to melt 423 g of water at 0°C is 141282 J

The heat required to melt water can be obtained by using the following formula:

Q = mL

Q is the heat required.

L is the latent heat of fusion (334 J/g)

m is the mass.

With the above formula, we can obtain the heat required to melt the water as illustrated below:

Mass of water (m) = 423 g

Latent heat of fusion (L) = 334 J/g

Heat (Q) required =?

Q = mL

Q = 423 × 334

Q = 141282 J

Therefore, the amount of heat needed to melt 423 g of water at 0°C is 141282 J

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what is always formed when a strong acid solution reacts with a strong base solution?

Answers

Answer:

water and salt

Explanation:

A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water. The neutralization of a strong acid and strong base has a pH equal to 7.

Hope this helps

PLS MARK BRAINLIEST

Which metalloid has five valence electrons in the fourth electron shell?

antimony
germanium
selenium
arsenic

Answers

Answer:

A- antimony

Explanation:

Answer:

A

Explanation:

If the net force acting on a stationary object is zero, how will the object’s motion be affected?

Answers

Answer:

remain at rest

Explanation:

A school bus travels 270 km in 6 hr. What is its average speed for the trip in km/hr?

Answers

Answer:

45km/hr

Explanation:

270/6=45

is CuCl2 polar or nonpolar ?

Answers

CuCl2 is a polar covalent bond.

Help me pls I will mark you as brain

Answers

Answer:Infection with a pathogen does not necessarily lead to disease. Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. Disease occurs when the cells in your body are damaged as a result of infection and signs and symptoms of an illness appear.

Explanation:

I believe Epidemology because it is the branch of medicine which deals with the incidence, distribution, and possible control of diseases and other factors relating to health. This relates to finding diseases in places like those.

Physical Models Activity (I need help)

You have explored some interesting, informative, and amusing examples of models. Now it's time to get creative and make your own model. Here is the requirement checklist for your model:

✔ Model types can include drawings, diagrams, physical models, virtual simulations, or videos.
✔ Models must be created by you, not something selected from an online or outside source.
✔ Submit a presentation, picture, video, or screenshot of your model.
✔ Submit a one-paragraph summary describing the topic you chose, your model, what it represents, how you made it, and the specific science involved. It is important that you are using science terminology and are accurate.
Now that you know how to create and submit your model, you will need to choose a topic for your model. Choose one of the three topics listed below. Select each topic for an overview.

Conservation of Mass
Atomic Theory
Thermal Energy

Answers

The question above wants to assess your ability to create a model to represent a scientific concept. In that case, I can't create the model for you, but I'll show you how to create that template.

First, you must choose one of the topics presented in the question. I suggest that you choose the topic "Conservation of Masses," because of its simplicity, however you should choose the one you are most familiar with.

Next, you should research this topic and look at the factors that make it up.

After that, you can create your template as follows:

Use a software that has ready-made drawings, mainly geometric figures, for you to represent the elements that make up this topic.Use these drawings to represent these elements, place titles that identify them, and add arrows, which direct the viewer's attention to understand the model.

You can see examples of "Conservation of Masses,"  models in the attached figure.

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While Brian was cutting the end of the rubber tube, during chemistry lab, he accidently cut his finger. It was a minor cut and hardly any blood was visible. Brian should __________
a. tell his teacher immediately and do as directed.
b. go to the sink and wash his hand with soap and water.
c. place a towel over the wound and keep working.
d. continue working because he is ok.​

Answers

Answer:

A because even if its a minor cut, it's always a better choice to inform someone.

If an atom has 4 protons and 2 electrons its charge will be:

Answers

Answer:

It's charge will be positive

Explanation:

4>2

the half-life of roentgenium -281 is 17 seconds,if 10 grams are left after 85 seconds,how many grams were initially in the original sample?

Answers

-281 is the right answer

1. You were tasked to check if the liquid sample you have is a substance or a mixture.
Which among these tasks is the BEST way to do so?
1. Color comparison
Il. Taste comparison
III. Boiling Test
iv.
Melting Test

Answers

Answer:

boiling test or melting test

Explanation:

Example The anticancer druge cir-platin hydrolysis in with constant 1. Solo - at pH 7:0 and 25°c. calculate the half life of the reaction

Answers

Answer:

ganda no beeeeeèeeeeee

Which of the following is an element?
O CuO
O Na
OCH4
H20

Answers

Explanation:

na is element

others are compounds

what are the conditions from our notes that affect natural Selection?

Answers

Answer:

Conditions that affect natural selection are reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.

How many energy levels does iron have

Answers

Answer:

Number of Energy Levels: 4

First Energy Level: 2

Second Energy Level: 8

Third Energy Level: 14

Fourth Energy Level: 2

Explanation:

Hope It Helps!

Answer:

4 energy levels

Explanation:

1st energy level = 2 electrons

2nd energy level = 8 electrons

3rd energy level = 8 electrons

4th energy level = 8 electrons

decide how to supersets these substances? If if is not possible, please write "cannot be separated" on the space provided​

Answers

Answer: (although the question does not sate whether if you separate them physically or through energy. so i did both)

1. can be separated (When high-energy ultraviolet rays strike ordinary oxygen molecules (O2), they split the molecule into two single oxygen atoms, known as atomic oxygen)

2. can be separated, but through electrolysis, fiscally moving a crane to generate electricity to separate the molecules

3. Most solid particles, composed of diamagnetic or weak paramagnetic materials, cannot be extracted by a conventional magnetic separator. physically cannot be separated. but through heat yes

4. but there is a catch: doing so requires energy. ... If energy from coal were applied to drive the decomposition reaction, more CO2 would be released than consumed, because no process is perfectly efficient. so it cant be separated physically

5. it can be separated but it needs energy physically cannot be separated.

Explanation:

Letter C shows that some of the heat rising from the earth's surface is trapped by gases in the atmosphere and reflected back to earth. This is known as what?





options:

Coriolis Effect


Solar Flares


Green House Effect


Windshield Effect

Answers

It is the Green House effect

Someone pls help me I will make you brain

Answers

Answer:

the 3rd option is the answer

Why can some mixtures not be classified as solutions?

A. Not all mixtures have solutes
B. Not all mixtures are heterogeneous
C. Mixtures are made of only one substance
D. Not all mixtures are homogenous

Answers

Answer:

not all mixture have solutes

What is the formula for the ionic compound formed when aluminum bonds with arsenic?

Answers

Answer:

AlAsO4

Explanation:

Aluminium arsenate is an inorganic compound with the formula AlAsO4. It is most commonly found as an octahydrate. It is a colourless solid that is produced by the reaction between sodium arsenate and a soluble aluminium salt.

What direction would this plate move? (the plate is gray in color)

options:

from West to East


from East to West


from South to North


from North to South

Answers

Answer:

from south to north thats what it look like

Explanation:

Pots and pans that are used for cooking are often
made of copper, aluminum, and iron. Explain how metallic bonding makes these
metals suitable for this use.

Answers

Cooking materials are made of copper, aluminum, and iron because they contain free, mobile electrons owing to the metallic bond.

Metallic bonding involves a sea of electrons that is bonded to metal cations by electrostatic attraction. The electrons in the metallic bond are free to move around the material.

Because there are free electrons, when the material is heated, the electrons receive energy and move faster, this energy spreads throughout the material by conduction.

Hence, good conductors of heat such as copper, aluminum, and iron are used for cooking materials.

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I will brainless who can answer this all pleaseeeeejxmx Ms ​

Answers

answer:

black

Explanation:

black is visible

Mrs. Sprague wants to determine which type of ball has the highest bounce. she
drops a tennis ball, soccer ball, then a basketball from a height of 15 feet, and
measures and records how high each type of ball bounces back up.

What is the Independent Variable in this experiment?

A.the different types of balls being tested
B.the height of the drop
C.the height of each bounce
D.the measuring tape

PLEASE HELP

Answers

Answer:

Explanation:

It's going to be the height of the drop. That is kept as a constant. The dependent variable is how high each ball bounces.

100.0 grams of an isotope with a half-life of 36.0 hours is present at time zero. How much time will have elapsed when 25.00 grams remains?

Answers

We have that  the time that will have elapsed when 25.00 grams remains is

T=72hours

From the question we are told

100.0 grams of an isotope with a half-life of 36.0 hours is present at time zero. How much time will have elapsed when 25.00 grams remains?

Generally the equation for the Half life  is mathematically given as

Where

[tex]X=\frac{25}{100}\\\\X=0.25\\\\Therefore\\\\\frac{1}{2}^n=0.25\\\\n=2 half lives[/tex]

Therefore

T=2*36

T=72 hours

Hence

 the time that will have elapsed when 25.00 grams remains is

T=72hours

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What is a unique quality of the halogens/halides?

Answers

Answer:

Halogens are highly reactive

Can matter be created or
destroyed?

Yes or No

Answers

Answer:

No

Explanation:

The same amount of matter is present before and after chemical and physical changes. Matter cannot be created or destroyed

Answer:

none is created or destroyed. This concept is called the Law of Conservation of Mass.

how many grams of HCl is produced from using just 1.5 moles of water​

Answers

27 grams of HCI is produced from 1.5 moles of water
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