Answer:
ako po because I'm pilipino
Explanation:
HAHAH same too
Is halogen radioactive
Answer: yes
Explanation:
how many atoms of vanadium are in 1.28 grams of vanadium
The number of atoms in 1.28 grams of vanadium is 1.51×10²² atoms
Avogadro's hypothesisFrom Avogadro's hypothesis,
1 mole of Vanadium = 6.02×10²³ atoms
But
1 mole of Vanadium = 51 g
Thus,
51 g of Vanadium = 6.02×10²³ atoms
How to determine the atoms in 1.28 g of Vanadium51 g of Vanadium = 6.02×10²³ atoms
Therefore,
1.28 g of Vanadium = (1.28 × 6.02×10²³) / 51
1.28 g of Vanadium = 1.51×10²² atoms
Thus, 1.51×10²² atoms is present in 1.28 g of Vanadium
Learn more about Avogadro's number:
https://brainly.com/question/26141731
Can you help me solve this ?
Is this equation balanced and in the lowest form?
4NH3 → 2N2 + 6H2
Answer:
It's balanced but not in the lowest form
Explanation:
The actual equation is given by
[tex]\\ \sf\longmapsto 2NH_3\longrightarrow N_2+3H_2[/tex]
All of the following affect toxicity of a substance except*
origin of the substance
nature of exposure
duration
dosage
Answer:
durage
Explanation:
durage just doesn't make sense compared to the other 3
Answer:
Origin of the substance
Explanation:
Origin of a substance doesnt affect toxicity but all other options do
Que son Moléculas neutras
Answer:
Una molecula en que hay igual numero de cargas positivas y negativas y los electrones estan distribuidos de modo que no hay regiones con carga parcial(o sea una molecula no polar). Esto ocurre cuand los atomos tienen mas o menos igual electronegatividad para atraer los electrones.
Explanation:
Select the statements that correctly describe an comet. Check all that apply
made of metals and gas
made of ice, dust, and gas and display a tail near the Sun
have short orbits that keep them close to the sun
have huge elliptical orbits that take them past Neptune
Answer:
made up of ice dust and gas and display a tail near the sun
Explanation:
5 examples of Earth Surface .
Answer:
lithosphere (land)
hydrosphere (water)
biosphere (living things)
atmosphere (air).
Predict the reaction
HCIO4+ KOH=
Answer:
HClO4 + KOH → KClO4 + H2O
Explanation:
Answer:
HCIO4 + KOH → KCIO4 + H2O
Explanation:
nailed it
What is a small description of a molecule
Answer:
molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.
Why is volume measured with different units?
Answer:
The volume of an object can be calculated by multiplying its length, width and height. Further, depending on the shape of the object, its volume changes.
Explanation:
Hope this helps
3. Ethanol has a density of 0.800 g/mL.
a. What is the mass of 225 mL of ethanol?
Since the ethanol has a density of 0.800 g/mL, the mass of the ethanol is 180 grams.
Given the following data:
Volume of ethanol = 225 mLDensity of lead ball = 0.800 g/mL.To find the mass of the ethanol;
Density can be defined as mass all over the volume of an object.
Mathematically, the density of a substance is given by the formula;
[tex]Density = \frac{Mass}{Volume}[/tex]
Making mass the subject of formula, we have;
[tex]Mass = Density \times Volume[/tex]
Substituting the given parameters into the formula, we have;
Mass of ethanol = 180 grams.
Read more: https://brainly.com/question/18320053
helpppppppppppppppppppppppppppppppppp
Answer:
the drops of liquid are coming from the decreases. they are formed as the motion of the water particles in the air gas. this change in motion cause air in the air to change from a liquid to a water
Hello there!
The drops of liquid are coming from the air. They are formed as the motion of particles in the air decreases. This change in motion causes water in the air to change from a liquid to a gas.
Hope this helps you!
~Just a joyful teen
[tex]SilentNature :)[/tex]
✿❀❁❀✿which is more likely HON or HNO
NO- (isoelectronic or same as O2) is hard base
H+ is hard acid
bonding depends which pi* has more electron density and calc shows more on N...hence HNO is more likely (bent) molecule
whatever....
can anyone heelp me pls pls
Answer:
Lotion=liquid
suspension=semisolid
capusule=solid
Explanation:
Can someone please help me answer this
Answer:
yiur mom
Explanation:
d
A student uses a solution of potassium hydroxide to titrate a solution of nitric acid. Which question is the student trying to answer?(1 point)
What is the concentration of nitric acid?
What is the concentration of nitric acid?
How much nitric acid solution is present?
How much nitric acid solution is present?
What is the concentration of potassium hydroxide?
What is the concentration of potassium hydroxide?
How many moles of potassium hydroxide are present?
How many moles of potassium hydroxide are present?
Answer:
A. What is the concentration of nitric acid?
Explanation:
its right
Answer:
A
Explanation:
what is the bonding of hydrogen?
Answer:
A hydrogen bond is a primarily electrostatic force of attraction between a hydrogen atom which is covalently bound to a more electronegative atom or group, and another electronegative atom bearing a lone pair of electrons..
(refer the image)
Explanation:
brainliest plz
where does fertilization occurs in human beings
In human beings fertilization occurs in fallopian tube
Answer:
Fertilization usually takes place in a fallopian tube that links an ovary to the uterus. If the fertilized egg successfully travels down the fallopian tube and implants in the uterus, an embryo starts growing.
Which layer is thin, brittle, solid, and composed primarily of silica?
the crust
the mantle
the outer core
the inner core
If gas is truly to be classified as a form of matter this means it can be measured. What form of gas can be measured?
Answer:
Gas is sometimes measured in cubic feet at a temperature of 60 degrees Fahrenheit and an atmospheric pressure of 14.7 pounds per square inch. Gas production from wells is discussed in terms of thousands or millions of cubic feet (Mcf and MMcf). Resources and reserves are calculated in trillions of cubic feet (Tcf).
Answer:
A dry gas, that is a natural gas, is the form in which gas can be measured.
And gas is measured in cubic meter, that is, it's volume is measured and the size of gas can be determined.
All the best!
draw the lewis dot structure of C4H8N2O3
Explanation:
Refer to the attachment
Extrashots:-
C4H8N2O3 is called asparagine .
Biểu thức định luật Raoul là?
Answer: Định luật Raoult là một định luật hóa học vật lý, với ý nghĩa trong nhiệt động lực học. Được thành lập bởi nhà hóa học người Pháp François-Marie Raoult vào năm 1887, nó nói rằng áp suất một phần của mỗi thành phần của một hỗn hợp chất lỏng lý tưởng bằng với áp suất hơi của thành phần tinh khiết nhân với phần nốt ruồi của nó trong hỗn hợp. Kết quả là, việc giảm áp suất hơi tương đối của dung dịch pha loãng của chất tan không lây bằng với phần nốt ruồi của chất tan trong dung dịch.
Explanation: hope this helps :)
When the electron from the n=4 excited state drops to the ground state, does it absorb energy or emit energy?
Answer:
It emits energy since to move from a higher energy level to a lower energy level or ground state, it must lose energy.
Determine the total mass of 5 moles of CuSO4.5H2O
Answer:
Answer: 1247.5 grams
Explanation:
explanation on image .
Sodium (Na) and chlorine (CI) combine to form a __ of salt (NaCI)
A. Mixture
B. Molecule
Answer:A mixture
Have a nice day :D
helppppppppppppppppppppppppppp
Answer:
It's also true
Explanation:
the answer is written in this question
I hope that helps
How many hydrogen atom are in compound NH42CO3
Answer:
There are 4 Hydrogen atoms in the compound NH42CO3
Explanation:
The "H4" is used to represent the amount of Hydrogen atoms in the compound itself, which is 4.
What is the controlled variable of your experiment?
Your answer
Answer:
The controlled variable of an experiment is the one thing that stays the same in an experiment.
Explanation:
An example would be : if I have two pennies, both dunked in water, but than I change one to be dunked in vinegar, the one dunked in water still is the constant or the controlled variable.
What will happen to the pH of sodium bicarbonate if vinegar is added to it?
Answer:
The overall chemical reaction between baking soda (sodium bicarbonate) and vinegar (weak acetic acid) is one mole of solid sodium bicarbonate reacts with one mole of liquid acetic acid to produce one mole each of carbon dioxide gas, liquid water, sodium ions, and acetate ions. The reaction proceeds in two steps
