Chemistry High School

write the molecular fotmula of water​

Answers

Answer 1

Answer:

H20

Explanation:

Answer 2

Answer:

hope it helped you

Explanation:

H2O (u have to write ✍️no 2 below H.

Related Questions

The elements least likely to form bonds are found in which group? 15 16 17 18

Answers

Answer:

i think 15 but dont get mad if not (❁´◡`❁)

Explanation:

Answer:

The answer is 18

Explanation:sorry if im wrong TwT

what is the density of an object with a mass of 100 grams and a volume of 50 cm​

Answers

Answer:

2

Explanation:

because 100÷50=2m÷v=d

2
A train travels 25 km in 0.5 hrs. How fast is the train going?​

Answers

Answer:

15

Explanation:

Answer:

50 km/h

Explanation:

Since in half an hour it has gone 25km, double that (25 x 2) and you get your answer in km/h. Therefore, the train is going 50km/h.  

helpppppppppp please
what did max planck discovery?

Answers

Answer:

Max Planck discovered the quantum of action

Explanation:

He discovered the quantum of action

What mass of ethanol will All
a 250.0 ml container if its
density is 0.789 g/ml?

Answers

Answer:

The answer is 197.25 g

Explanation:

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

mass = Density × volume

From the question

volume = 250 mL

density = 0.789 g/ml

So we have

mass = 250 × 0.789

We have the final answer as

197.25 g

Hope this helps you

Is it true or false??. . .Help me please

Answers

Answer:

I think the answer is true

Can someone please help

Answers

Answer:

3

Explanation:

3 ampers (it says in the problem)

how many molecules are in 3.40L of H2O vapor at STP?*

Answers

Answer:

9.14 x 10^22 molecules

Explanation:

Which element would be the least similar to magnesium (Mg)?
A. Sr
B. Na
C. Be
D. Ca

Answers

Answer:

B: NA

Explanation:

this is the apex answer

1s^ 2 2s^ 2 2p^ 6 3s^ 2 3p^ 6 4s^ 2 3d^ 10 4p^ 2 what element is this

Answers

Answer:

please use shell notation

Compare and contrast Transverse Waves and Longitudinal Wave

Answers

there, so you can have choices, though they all mean the same thing.


Convert the following to Celsius
16) 100°K
17) 200°K
18) 273°K
19) 350°K

Answers

Answer:

16) -173.15cel

17)-73.15cel

18)-0.15

19)76.85

Explanation:

I converted kelvins to cel

Brainly pls

In an isotope, what does the 'u' stand for?
For example: Lithium isotope: Li-6 6u
The u after 6

Answers

The u is called atomic mass unit.
It is a unit of weight
Like we have kilograms,grams,milligrams, On the atomic level,the unit of weight measurement is AMU or just u for short.


Jose adds five grams of a chemical to one liter of liquid and observes a reaction. If the reaction is endothermic, what will happen?
A
The liquid's mass increases; therefore, the volume of the liquid will increase
B
The liquids' mass decreases; therefore, the volume of the liquid will decrease.
С
Energy is released during the reaction; therefore, the temperature of the liquid will increase.
Energy is absorbed during the reaction; therefore, the temperature of the liquid will decrease.
D

Answers

Answer:

D. Energy is absorbed during the reaction; therefore, the temperature of the liquid will decrease

Explanation:

In a chemical reaction, the reaction is said to be ENDOTHERMIC if the reaction utilizes or uses energy instead of given it off. In this reaction, Jose adds five grams of a chemical to one liter of liquid and observes the reaction.

According to this question, the reaction is ENDOTHERMIC. This means that energy is absorbed or used up during the reaction; therefore, the temperature of the liquid will decrease i.e. the liquid used in the reaction will become COLDER.

2.18 x 10^6 ng = 2.18 x 10^? mg

Answers

Answer:

2.18 * 10^12 mg

Explanation:

1 nanogram [ng] = 10^6 milligram [mg]

2.18 * 10^6 ng/ 1 ng = X mg / 10^6 mg

X mg = 2.18 * 10^12 mg

Answer:

2.18 * 10^12 mg

Explanation

If its density is 34 g/ml, what is the mass of 120.0 ml of the liquid?

Answers

Answer:

The answer is 4080 g

Explanation:

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

mass = Density × volume

From the question

volume = 120 mL

density = 34 g/ml

We have

mass = 34 × 120

We have the final answer as

4080 g

Hope this helps you

Electron Dot Structures

Draw the electron dot structures for the following elements:

Magnesium (Mg)


Lithium (Li)


Argon (Ar)


Carbon (C)


Sulfur (S)


Helium (He)


Aluminum (Al)


Nitrogen (N)


Silicon (Si)


Hydrogen (H)


Calcium (Ca)


Neon (Ne)


Potassium (K)


Boron (B)


Chlorine (Cl)

Answers

Answer:

surf (S)

tide (T)

champion (C)

Explanation:

wag mo nlng pansinin

A sample has a PH of 4, and another sample has a PH of 9. Which sub is the base? How many times basic is it??

Answers

Answer:

the first one

Explanation:

the first one is the base because it has a lower PH

Convert 0.0134 Liter to millimeter

Answers

Answer:

13400 millimeters.

Explanation:

Multiply the volume value by 1e+6

Apps
What do you already know about mass, weight, and gravity?

Answers

Answer:

they are the three states of matter

Hydrochloric acid and sodium hydroxide can be combined to form sodium chloride and water. Which best explains the reaction?

Answers

Answer:

Explanation:

Hydrochloric acid and sodium hydroxide can be combined in equal ratios to form sodium chloride and water. Which best explains the reaction? The total volume produced by combining hydrochloric acid and sodium hydroxide will result in the same volume of sodium chloride and water.

How can charged objects interact without touching

Answers

Electrostatic forces are non-contact forces; they pull or push on objects without touching them. Rubbing some materials together can result in something called 'charge' being moved from one surface to the other. Charged objects pull on other uncharged objects and may either push or pull on other charged objects(hopefully this helps)

What do we call the (+) ion in an ionic bond? *
O Cation
O Anion
O Metalloid
O Covalent

Answers

Answer:

cation

Explanation:

a cation is an ion with a postitive charge. This (cat)ion (+) = cats are good , anion (onion) are not good (-)

Which of the following has the smallest radius?

A. Br-

B. Br

C. I-

D. I

Answers

B) Br

..................

I’m pretty sure it’s Br

Which formula is an ionic compound?
A.NaF
B.N2
C.NO2
D.CO2

FIRST ACCUAL ANSWER GETS BRAINLIST :)

Answers

Answer:

NaF

Explanation:

Answer: the answer is Naf

Explanation
and I love pop tart kitties OWO but i hope this helped i have a in science so i got 100% on it bye bye OWO


Which element has four times as many protons in its nucleus than are found in Neon?

Answers

Answer:

Zirconium, Zr, 40

Explanation:

Protons can be found by looking at the atomic number. Neon's atomic number is 10, so just multiply 10 by 4 and you get 40.

Which statement best describes the difference between veins and arteries? *
veins carry oxygen rich blood back to the heart while arteries carry oxygen poor blood
away from the heart
veins carry oxygen poor blood back to the heart while arteries carry oxygen rich blood
away from the heart.
brings oxygen into the lungs and releases carbon dioxide and water (waste materials)
from the body
arteries carry blood that is carbon dioxide rich to the heart,

Answers

Answer:

Veins carry oxygen poor blood back to the heart while arteries carry oxygen rich blood

Can you tell me the Valence Electron of each element?​

Answers

Answer:

Lithium oxide.......................

Explanation:

6. magnicium chloride

2.Barium chloride

3. calcium nitride

4. lithium oxide

5. Aluminium sulphide

plzz mark me brainliest

What determines the carrying capacity of an environment

Answers

Carrying capacity, or the maximum number of individuals that an environment can sustain over time without destroying or degrading the environment, is determined by a few key factors: food availability, water, and space


Is carbon a metal or a nonmetal? How many valence electrons does a carbon atom have?

Answers

Answer:

Carbon is a solid non-metal element. Carbon has eight valence electrons.

Explanation:

Hope this helps!!

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