I have a homework and I need help please.​

Answers

Answer 1

Answer:

yeah we cant see it

Explanation:


Related Questions

Contrast the three types of intermolecular forces.

Answers

Answer: The three major types of intermolecular interactions are dipole–dipole interactions, London dispersion forces (these two are often referred to collectively as van der Waals forces), and hydrogen bonds.

Hope this helps............ Stay safe and have a Merry Christmas!!!!!!! :D

In what eon did single-celled organisms appear?

Answers

Archean is what I think but there isn’t a clear answer

Heated gaseous atoms of elements emit light in unique colored patterns as electrons drop from
excited energy states to ground energy states. Heated hydrogen atoms have only four colored
lines, red, green, blue and violet. What prediction did Niels Bohr make about electrons based on
this information?

Answers

Answer:

b

Explanation:

Why does an ionic bond transfer electrons instead of sharing?

Answers

The modern definition of electronegativity is due to Linus Pauling. It is the power of an atom in a molecule to attract electrons to itself.

When the electronegativity difference between the two atoms is greater than 2.0, the bond is considered ionic; i.e. there is complete transfer (between the two atoms) of the electrons in the bond. The electronegativity (according to Pauling scale) of chlorine is 3.0, while the electronegativity of sodium is 0.9.

So, electrons are transferred because of a larger electronegativity difference.

When there is a whole transfer of valence electron between the atoms is called an ionic bond. In this type of bond construction, the atoms get contrarily charged.

The ionic bonds are formed due to electronegativity. According to Pauling, the capability of an atom to draw electrons towards itself is called electronegativity.

When there is a huge contrast in electronegativity between the atoms, the electrons are completely transferred between the atoms.

The atom that relinquishes an electron are called a cation and is positive whereas the atom that acquires an electron are called anions and are negatively charged.

Therefore, due to electronegativity, ionic bonds are formed.

To learn more about ionic bonds follow the link:

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What is the density of laughing gas (N2O) at STP?

Help please

Answers

Answer:

1.977 g/L

Nitrous oxide

Names

Molar mass 44.013 g/mol

Appearance colourless gas

Density 1.977 g/L (gas)

Melting point −90.86 °C (−131.55 °F; 182.29 K)

SO H20 IS IN YOUR MOM
BCECASE

If you have 23mg of water, at what temperature will it Boil?

Answers

Answer:

i believe it is in the 200

Explanation:

What constitutes a solar system?

Answers

The Solar System may be divided by its components into three major regions: the inner system, the near outer system, and the far outer system. The near outer system might also be referred to as the middle system.

Our solar system consists of our star, the Sun, and everything bound to it by gravity — the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune, dwarf planets such as Pluto, dozens of moons and millions of asteroids, comets and meteoroids.
Goodluck my friend!!

What is the condensation point and freezing point of neon in KELVIN.

Answers

Answer:

-415.5°F (-248.6°C)

Explanation:

Answer: The melting point/condensation point of neon is 24.53888889. Of course, I'm sure you can round that. The freezing point would be 521.74. All of this is in Kelvin

MgO + HBr → MgBr2 + H2O​

Answers

Answer:

MgO + 2HBr → MgBr2 + H2O​

Explanation:

Isomers are molecules with the same molecular formula, but different structural formulae.
How many isomers are there in C7H16?
A.6
B.7
C.8
D.9

Answers

Answer:

D 9 is the answer

Explanation:

Hope it helps you

Please mark as brainliest answer

Mass = 35g
Density = 5 g/cm3
∙What is the Volume?

Answers

Answer:

7cm3

.........

A radioactive substance has a half life of 2.5 days. How much of 25.0 z is left after 10 days? ​

Answers

1.563 g

Further explanation

Given

A half life of 2.5 days ⇒ t1/2 = 2.5 days

initial sample ⇒ 25 g

duration of decay ⇒ 10 days

Required

sample left after 10 days

Analysis

Use decay Formula :

[tex]\tt Nt=No.\dfrac{1}{2}^{T/t1/2}[/tex]

Solution

[tex]\tt Nt=25.\dfrac{1}{2}^{10/2.5}\\\\Nt=25.\dfrac{1}{2}^4\\\\Nt=\boxed{\bold{1.563~g}}[/tex]

Paraphrase

Substance left after 10 days = 1.563 g

Whoever answers the question first and right will get brainly

Answers

Answer:

to question two  When plant roots grow downwards, it is an example of positive geotropism, because they are growing towards the stimulus, the soil. However, when plant shoots grow upwards, it is an example of negative geotropism as they grow away from the stimulus, the soil.Feb 21, 2018

Explanation:

2 The polar structure of water allows it to act as a solvent for many substances. Which of the
following statements best explains why water is considered polar?
F The unequal sharing of electrons results in the water molecule having a slightly negative
charge near its oxygen atoms and a slightly positive charge near its hydrogen atom.
G The equal sharing of electrons by the hydrogen and oxygen atoms form weak bonds that are
easily broken during dissociation.
H The unequal sharing of electrons results in the water molecule having a slightly positive
charge near its oxygen atoms and a slightly negative charge near its hydrogen atom.
The equal sharing of electrons by the hydrogen and oxygen atoms create a molecule that is
neutrally charged.

Answers

The answer would be F as oxygen is delta negative and hydrogen is slightly delta positive. Forming a permanent dipole.

0.190 moles cesium chloride converted to grams

Answers

Answer:

31.9881055

Explanation:

0.190*168.35=31.9881055

The ampere is a unit of

A. magnetism.
B. electric current.
C. electric charge.
D. temperature.

Answers

Answer: B

Explanation:

The reason its B because Ampere, unit of electric current in the International System of Units (SI), used by both scientists and technologists.

An electric current is a flow of electric charge in a circuit. More specifically, the electric current is the rate of charge flow past a given point in an electric circuit. The charge can be negatively charged electrons or positive charge carriers including protons, positive ions or holes.

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The answer of the question is electric current B

Which is an example of potential energy?

Question 7 options:

A fox chasing a mouse


A bowling ball rolling towards the pins


A car sitting at the top of a hill


A kite flying in the air

Answers

Probably C hope this helps
C
A car sitting at the top of a hill

Part A Read each sentence. Write the letter of the correct answer on the line.
1. Which of the following would result in a chemical change?
A boiling water
C tearing paper
B burning wood
D melting wax

Answers

Boiling water because it’s more obvious
Buring wood is the answer to that question

Which element cannot participate in hydrogen bonding?

Answers

Carbon dioxide

Explanation:

because when hydrogen mixes with oxygen carbon dioxide is canceled out

Hydrogen bonding takes place between hydrogen and either nitrogen, oxygen, or fluorine. Carbon has an electronegativity similar to hydrogen's, and will not hydrogen bond with hydrogens in other molecules. Only molecules with -OH, -FH, or -NH groups can form hydrogen bonds.

What Group would this element be in?

Answers

group 15 which is non metal
15
We’ll I think sorry if wrong .......

QUESTION 10
Which of the following is not a characteristic of ionic compounds?
A. Contains metals and non metals
B. Ions form a crystal structure
C. Conducts electricity in the solid state
D. High melting point

Answers

Answer: C. Conducts electricity in the solid state

Explanation:

Which is larger potassium or bromine

Answers

Answer:

potassium.

Explanation:

located at start of period 3, will have larger radius

Answer:

bromine

Explanation:

Consider the compound Al(OH)3. What type of solid does it form?

Answers

Answer: crystal lattice

Explanation:

Answer:

A and the next question is c

Explanation:

Edge 2020

Similarities between sliding and fluid friction

Answers

True would be the answer

Which component is soluble in water

Answers

Answer:

salt

Explanation:

How much electronic waste does Orlando produce ?


Answers

Answer:

20 to 50 million

Explanation:

Which word doesn't belong?
period, group, family, eighteen

Answers

Answer:

eighteen

Explanation:

Pls someone help ASAP

Answers

Answer:

i answed it in before

Explanation:

Why is oxygen spelt o2

Answers

Answer:

it's a diatomic molecule–which is why it is O₂.

Explanation:

Diatomic molecules are molecules composed of only two atoms, of the same or different chemical elements. Only a handful of elements on the periodic table are diatomic such as nitrogen, hydrogen, fluorine, chlorine, bromine, and iodine.

It has 2 parts of Oxygen atoms.

If the statement is true, select True. If it is false, select False.

In a physical change, some of the physical properties of the substance may be altered and the chemical composition remains the same.

True
False

Answers

Answer:

True

Explanation:

Yes this statement is true.

In a physical change, some of the physical properties of the substance may be altered and the chemical composition remains the same.

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