Chemistry High School

I will brainless who can answer this all pleaseeeeej​

I Will Brainless Who Can Answer This All Pleaseeeeej

Answers

Answer 1

Answer:

1. False

2. True

3. False

4. False

5. False

6. True

7. True

8. not sure

9. True

10. False

Explanation:

Related Questions

Ned help with this question​

Answers

Answer:

135.6

Explanation:

12 * 11.3 = 135.6

To find the mass you have to multiply the density and volume together

If you already have the mass you divide the mass by either the density or volume

This is my almost last question plsss help

Answers

the third one is correct, not sure abt another one

Answer:

The Government did not encourage Confucius' philosophy until more than 350 years after Confucius first began teaching.

and

Some kinds of Confucianism we're influenced by other philosophies.

Can someone solve this question? I'll give brainliest and more points.

Answers

Burning substance answer

Answer:

When a substance undergoes a chemical change it is no longer the same but a burning substance.

Explanation:

That is the correct answer.

What form do ionic compounds take when solid?

Answers

Answer:

lattices

Explanation:

Ionic compounds are crystalline solids under normal conditions, have high melting points, and form lattices at the macroscopic level. Almost all of these solids dissolve in water and conduct electricity when dissolved. These substances are known as electrolytes because they can conduct electricity when in solution.

hope this helps

Lattices
Crystalline solids under normal conditions, and have high melting points

Which group will have an electron configuration that ends in s2?

a
Alkali metals (Group 1)
b
Halogens (Group 17)
c
Alkaline earth metals (Group 2)
d
Noble gases (Group 18)

Answers

Answer:   c . Alkaline earth metals (Group 2)

Explanation:

Group 2 metals have 2 electrons in their outer shell. These two electrons are usually found in the s orbital, hence the s².

a caterpillar travels across the length of a 3.00 m porch in 10.5 minutes. what is the average velocity of the caterpillar in m/s?

Answers

Answer:

3.5 meters per second

Explanation:

10.5 divided by 3 equals 3.5

why is it important to use deionized water in an experiment

Answers

Because of the minerals in water, these minerals/ those Alkaline waters can effect your experiment

because it removes all of the charged ions in the water, making it safe to mix into medications

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:

a 47.0 ml aliquot of a 0.400 m stock solution must be diluted to 0.100 m. assuming the volumes are additive, how much water should be added?

Answers

Answer:

141 ml

Explanation:

. The best way to separate sodium chloride solution and sand is by:​

Answers

Answer:

Dissolving the mixture in water, filtering and then perform evaporation on the filtrate

Dãy các chất tác dụng được với dung dịch HCl loãng tạo thành sản phẩm có chất khí
A.BảO,FE,CaCO3 B.Al,MgO,KOH

C.Na2SO3,CaCO3,Zn D.Zn,Fe2O3,Na2So3

Answers

Na2so3 same as na2so3 you have to understand the question

what if water didnt have a negative charge?

Answers

Explanation:

The water molecule has a tiny negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms due to the unequal sharing of electrons.

PPPPPPLLLLLLSSSSS HELP IT DUE IN TWENTY MINUTES WILL GIVE THIRTY POINTS
4. Evaluate: Look at the results of your experiment. What was the relationship between crumple zone rigidity, crumple zone deformation, and maximum force on the dummy?

Answers

Answer:

Explanation:

Start by restating the question.

So how is the crumple zone rigidity, crumple zone deformation , and the maximum force of the dummy similar, and how are they different?

The crumple zone increases, the crumple zone deformation increases then decreases then repeated in increasing and decreasing , and the maximum force decreases. Hope that helps!

the melting point of a substance is also the same as the:

Answers

Answer:

The melting point of a solid is the same as the freezing point of the liquid. At that temperature, the solid and liquid states of the substance are in equilibrium.

Pure gold: 1063

Pure silver: 961

What is the molarity of 930 mL of LiCl solution that contains 139.9 g of LiCl?
O A. 3.5 mol/L
O B. 150 mol/L
hipotle and like
O C. 3.3 mol/L
O D. 3.5 x 10-3 mol/L

Answers

Answer:

3.5 mol/L

Explanation:

First convert the 139.9g of LiCl into moles of LiCl.  Don't do the sig fig rule until the very end.

Second, take 930mL of LiCl and divide it by 1000 to convert it to liters.

Third use the molarity formula which is M=mol/L and divide 0.930L by 3.300773877mol and you will get 3.549219223.  This is where the sig fig rule will come into play.  3.5mol/L is a reasonable answer for this problem.

is this statement true or false? the chinese knew how to produce silk by about 2700 b.c.

Answers

The answer is true, good luck

Answer:

its true

Explanation:

I took the test

Is density a characteristic property of water?

Answers

"Density is a characteristic property of water because the density of any sample of water (at the same temperature) is always the same. The density is 1 g/cm3." - Mazza

It is a characteristic property of water because the density of any sample of water (at the same temperature) is always the same.

Can I have help with this I have no idea, is this a trick question?

Answers

Answer:

yes

Explanation:yes

don’t mind them repost it^ ^:)

List a few properties that elements in Group 1 have in common.

Answers

Answer:

The alkali metals are a group of chemical elements in the periodic table with the following physical and chemical properties:

shiny.

soft.

silvery.

highly reactive at standard temperature and pressure.

readily lose their outermost electron to form cations with a charge of +1.

Explanation:

have a great day

An unknown material has a mass of 4.5 g and a volume of
6.75 cm3. What is the density

Answers

Answer:

0.67 cm³

Explanation:

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

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

From the question

mass = 4.5 g

volume = 6.75 cm³

We have

[tex]density = \frac{4.5}{6.75} \\ = 0.6666666...[/tex]

We have the final answer as

0.67 cm³

Hope this helps you

Energy is released into the cell by

Answers

Answer:

cellular respiration

Explanation:

list 5 chemical properties of water?? ​

Answers

Answer:

In the presence of a strong electron donor (strong reducing agent), water serves as an oxidizing agent. In the presence of a strong electron acceptor (strong oxidizing agent), water serves as a reducing agent. On-water reactions are a group of organic reactions that take place as an emulsion in water and have an unusual reaction rate acceleration compared with (i) the same reaction in an organic solvent, or (ii) the corresponding dry media reaction.Amphoteric nature : Water can act as both acid and base, which means that it is amphoteric in nature.Hydrolysis reaction : Water has a very strong hydrating tendency due to its dielectric constant. It dissolves many ionic compounds. Some covalent and ionic compounds can be hydrolyzed in water.Redox reactions : Electropositive elements reduce water to hydrogen molecule. Thus, water is a great source of hydrogen.

Someone help me with this pls

Answers

Answer:

D

Explanation:

Lamps

The stratosphere is cold except in its upper regions where _____ is located.



Question 6 options:

Oxygen


ozone


space


Nitrogen

Answers

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The stratosphere is cold except in its upper regions where Ozone is located.

Which statement best describes property’s of elements

Answers

Answer:

matter

Explanation:

some elements are solid

some are liquid and gas

which under one property

*20 points* Pls answer following the rules of :No files
No links
No inappropiate responce
clean comments
Thank you!!

Answers

Question 4: C-An element is a substance made up of two or more different types of atoms that
are not chemically combined.
Question 5: Coke, Aluminum foil, chicken noodle soup, Gatorade

1. Calculate the energy in joules of a photon of electromagnetic radiation whose frequency is 2.76×1014 s−1 .
Express your answer with the appropriate units.

2. Calculate the energy in joules of a photon of radiation whose wavelength is 418 nm
Express your answer with the appropriate units.

3. What wavelength (in meters) of radiation has photons of energy 6.05×10−19 J ?
Express your answer with the appropriate units.

Answers

Answer: 41.5

Explanation:

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¿Estás de acuerdo con que las industrias petroleas exploten petróleo en zonas de reservas naturales?

Answers

Answer:

si estoy de acuerdo cien por ciento

you are given an unknown liquid and asked to determine its identity. You can measure only one physical property. you decide to heat the liquid. You record that the liquid turns vapor at 100c. this demonstrates which physical property. A. melting point B. boiling point C. ability to conduct electricity D. malleability

Answers

Answer:

b. boiling point

Explanation:

Do gasses have a fixed volume ​

Answers

Answer:

No

Explanation: Gases have no fixed volume and no fixed shape. Gases expand to fill the space available. They can also be compressed into a very small space.

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