Chemistry High School

I WILL GIVE BRAINLIEST TO YOU IF YOU ANSWER THIS (I KNOW THE ANSWER, SO IF YOU SOLVED WRONG, I WONT GIVE BRAINLIEST) SO YOU BETTER GIVE CORRECT ANSWER OR IM NOT GOING TO GIVE BRAINLIEST

Answers

Answer 1

Answer:

Corona Virus outbreak

Related Questions

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Answers

Answer:

Explanation:

A year is a complete revolution around the Earth

A block of lead displaces 50.5ml of water. The block weighs 698 g. From this
information, calculate the density of lead.

Answers

Answer:

13.82 g/mL

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\ [/tex]

From the question we have

[tex]density = \frac{698}{50.5} \\ = 13.8217...[/tex]

We have the final answer as

13.82 g/mL

Hope this helps you

Etiquetas de productos de casa formula química, nombre de la formula, y el nombre del producto. Ejemplo NaCL, Cloruro de sodio, sal.

Answers

Answer:

Azucar, bicarbonato de sodio, lavandina, vinagre, amoniaco.

Explanation:

Podemos numerar estos compuestos

Azucar → Sacarosa → C₁₂H₂₂O₁₁

Lavandina → Hipoclorito de sodio → NaClO

Vinagre → Ácido acético → CH₃COOH

Bicarbonato de sodio → NaHCO₃

Amoníaco → NH₃

Explain why the Earth has four different seasons

Answers

Answer:

Earths rotation

Explanation:

Answer:

because if there was not four diferent season we would not have a day or a night because we would not be moving

Explanation:

Isopropyl alcohol is a liquid with a density of 0.785 g/cm^3. How much volume would be taken up be 50.0 grams of isopropyl alcohol

Answers

Answer:

63.94 cm³

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

[tex]volume = \frac{mass}{density} \\ [/tex]

From the question we have

[tex]volume = \frac{50}{0.785} \\ = 63.694267...[/tex]

We have the final answer as

63.94 cm³

Hope this helps you

A sealed plastic bottle of apple juice is placed in freezer. Which statement describes what is happening while the juice is changing form a liquid to a solid?

A.) Kinetic energy is increasing. B.) Particle motion is coming to a complete stop.
C.) Particle speed is staying the same.
D.) Temperature is decreasing steadily.

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Your answer is B Particle motion is coming to a complete stop.That's your answer!

Hope this helps!!!

Answer:

Explanation:

i have the same test

Clinical thermomerter

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Answer:

Here is the definition: A medical thermometer (also called clinical thermometer) is used for measuring human or animal body temperature.

a small medical thermometer with a short but finely calibrated range, for taking a person's temperature.

What does an atomic number represent in an atom? number of neutrons number of protons number of electrons number of protons and neutrons

Answers

Answer:

The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.

Answer: I'm pretty sure the answer is Number of Protons

Explanation:

I took the k-12 test

which statement is a scientific law

Answers

Answer:

It is b

Explanation:

need help asap!!!!
will mark brainliest!!!

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We can verify the properties as follows;

1) Sour taste - Put some soda on your tongue

2) Corrode metals - Put a little soda on a clean metal surface

3) Effect on Litmus paper - Dip a blue litmus paper in soda

4) Electrolysis - Add two electrodes to soda and connect a battery.

Does Soda show acidic properties?

Soda, specifically carbonated beverages like cola or soda pop, typically exhibits acidic properties. The acidity of soda is primarily due to the presence of carbonic acid (H₂CO₃), which forms when carbon dioxide gas (CO₂) dissolves in water.

When carbon dioxide is dissolved in water under high pressure, it forms carbonic acid through the following reaction:

CO₂ + H₂O ⇌ H₂CO₃

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How much eat is absorbed when 50.0g of water changes from 25.0 Celsius to 37.0 Celsius?

Answers

27 I think beacuse if you subtract

4.186 j/g. X 50g x (37-25) =
2,511 joules or 2.5 kilo joules
Or 2.38 btu

4.186 is specific heat of water per gram per deg C at sea level
Times mass of 50 grams
Times delta T of the water

2530 joules when cross checked by plugging into an online calculator

After pollen lands on the stigma of a flower, which of the following happens first?

Help I will give brainlist

Answers

The correct answer is:

Pollination

Glycerol has a density of 1.26g/mL. What is the mass of 3000.mL of glycerol?

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Hey you got a picture you can call the number one phone call you got it and send

Which of the following is a subsurface event that takes place during the rock cycle?

Group of answer choices

Cementing

Erosion

Melting

Weathering

Answers

Answer:

Melting

Explanation:

Could not have been erosion because erosion happens on the surface.

Could not have been weathering because weathering happens on the surface.

So we only have Cementing and Melting left....

The answer is melting, I got 100% on my test.

Hope this helps!!!! :D

Please give brainliest!!!

Answer:

Explanation:

In the rock cycle, surface events takes place at the surface of earth. Thus,

weathering and erosion are surface events, while the subsurface events he take place in the deeper section of the earth . Examples of sub surface events are plate tectonics and mountain building or anything that takes place in the inner core of earth.

Examine the layers of rock. How does layering provide evidence for determining geologic age?

Answers

Well I can’t see the rocks but, to determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones.

Hope this helped! <3

Answer:

the deeper you go down in to the rock the older the fossils get.

Explanation:

layering can provide evidence because the deeper you go down in to the rock the older the fossils get. So when the scientists go in to the rock they can say what animals lived in that time and what animal was the oldest.

please help this is worth half of my grade! what letter represents the trough of the wave a,b,c,d,e

Answers

Hello good afternoon...God bless the answer to your following question is D

because...A crest point on a wave is the maximum value of upward displacement within a cycle. A crest is a point on a surface wave where the displacement of the medium is at a maximum. A trough is the opposite of a crest, so the minimum or lowest point in a cycle.

Which type of bond is salt? a. covalent b. valence c. metallic d. ionic

Answers

Answer:

D. Ionic

Explanation:

It has ionic bonding! Good luck ^^

Describe how sodium (Na) and chlorine (Cl) interact to form an ionic compound. Specifically, what is happening to an electron?

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When a sodium atom transfers an electron to a chlorine atom, forming a sodium cation (Na+) and a chloride anion (Cl-), both ions have complete valence shells, and are energetically more stable. The reaction is extremely exothermic, producing a bright yellow light and a great deal of heat energy.
Here you go its agin me answering you

This is a science question.

What is the acceleration of this helicopter?

Answers

Answer:

7m/s

Explanation:

Is the acceleration of the helicopter

The first noble gas with a Lewis Structure with 8 dots is

A. Ar
B. Kr
C. He
D. ne

Answers

Answer:

C) He

Explanation:

Helium is one of the noble gases and contains a full valence shell. Unlike the other noble gases in Group 8, Helium only contains two valence electrons.

What effect does the spinning of the earth's core have?
A.it creates gravity
B. it creates matter
C. it creates mass
D. it creates the earths magnetic field.

Answers

Answer:

Explanation:

its c

Earth contains a spinning electric filed. The spinning of earth core creates its magnetic field. Thus, option D is correct.

What is a spinning body?

A body which rotates in its own axis is called a spinning body. Earth rotates about its along with revolving around sun. The outer core of earth generates electric current. This is called telluric current.

Flow of this current creates an electric current which is parallels to the surface of earth. The direction of magnetic field lines will be perpendicular to the direction of current. But it comes stronger when parallel to current.

A rotating electric current results in the generation of a magnetic field. Thus spinning of earth core generates a magnetic field and therefore, option D is correct.

To learn more about magnetic field, refer the link below:

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The element magnesium is a
O Group 12, Transition Metal
O Period 3, Alkaline Earth Metal
Period 4. Alkali Metal
O Period 4, Halogen

Answers

Group 2
Period 3
Alkaline Earth Metal

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Rst is a right triangle rs=12 rt=20 st=15 what is sin r PQ and RS are two lines that intersect at point T, as shown below:Two lines PQ and RS intersect at point T. Angles PTR and STQ are shown congruent.Which statement is used to prove that angle PTR is always equal to angle STQ?choices: a. Lines PQ and RS do not have a fixed length.b. Angle PTR and angle PTS are supplementary angles.c.Lines PQ and RS intersect at an angle less than a right angle.d.Angle PTR and angle PTS are complementary angles. sergio must ride 7.5 miles in 1/4 hour to achieve this target speed, so he needs to ride an additional ____ mile per 1/4 hour Which sentence from the narrative portion of Monster reveals that it is written using a first-person point of view? If anybody knows that you are crying, theyll start talking about it.I wonder if I will look like myself when the trial is over. Theyre strangers but they still find reasons to hurt each other. It is a strange movie with no plot and no beginning. 2. Theof a sentence is the person, place, thing, event, etc. beingdescribed or referred to in a sentence.a. subjectb. articlec. claused. predicate Fill in the blank to complete the equation below. 99 + 33 = 11(?+3) cooper's jump rope is for 4 2/5. luke's jump rope is 4 3/4 ft long. whose jump rope is longer? how much longer? show your work GIVING BRAINLIEST TO FIRST GOOD ANSWER! A LOT OF POINTS PLS ADD EXPLANATION MARINE SCIENCE A scientist wants to test whether the pH, salinity, or temperature of seawater impacts coral development. He sets up an experiment with three conditions:Aquarium 1: Normal pH, normal salinity, normal temperatureAquarium 2: High pH, high salinity, high temperatureAquarium 3: Low pH, low salinity, low temperatureWhat factor would improve experimental design the most? (3 points)Select one:a. Eliminating Aquarium 1 since it only uses normal conditionsb. Testing one variable at a time and keeping the other two variables constantc. Using one aquarium and changing the variables from day to dayd. Setting up the variables on a gradient in each aquarium Q17: The coefficient of linear expansion of steel is a = 11 x 10-6 / C. A steelball has a volume of exactly 100 cm3 at 0C. When heated to 100C, itsvolume becomes in (cm3):ABDE100.33100.11100.0011100.0033None of them Venn diagram is shown below:What are the elements of (A B) ' ? simplify x X x^5 divided by x^2 X x a long walk to water chapter 6 summary? Which of the following is the most important political result of the election of 1800? (5 points) aIt proved that the nations who thought the United States would not last were right. bIt proved that unpopular laws and actions could get a sitting President reelected. cIt showed that Adams and Jefferson could still be friends even though they were bitter political enemies. dIt demonstrated that the ideas in the U.S. Constitution were stronger than the ideas of a political party. A student wants to investigate competition between two organisms. For the investigation, itis most important that the student should choose organisms thatO require the same resources.O reproduce at the same rate.O are both active during the day.o have the same adaptations.(help please!!! due today!!!) 5 stars and a thank you PLZ HELP IM TIMEDDDRead the excerpt from The Diary of Anne Frank.Anne. Mouschi! Mouschi! Mouschi! (She picks up the cat, walking away with it. To Peter) I love cats. I have one . . . a darling little cat. But they made me leave her behind. I left some food and a note for the neighbors to take care of her . . . I'm going to miss her terribly. What is yours? A him or a her?Peter. He's a tom. He doesn't like strangers. (He takes the cat from her, putting it back in its carrier.)Anne (Unabashed). Then I'll have to stop being a stranger, won't I? What does this dialogue reveal about Anne?A.She is stubborn and impolite.B.She is clever and confident.C.She is quiet and understanding.D.She is sad and confused. Please help i will make the first correct answer BRAINLIEST If you flip 3 coins what is the probability of NOT getting three Heads? P(not getting 3 Heads) what is 111 111 14 Are the similarities between public relations and journalism practices a good thing for the public? Why or why not?