What quantity is needed to convert between the moles of a
given sample of a substance and its mass in grams?
a the molar mass of the substance
b the density of the substance
с
the physical state of the substance
d all of the above
Check it

Answers

Answer 1

Answer:

a

the molar mass of the substance

Answer 2

Answer: a

The molar mass of the substance

Explanation:


Related Questions

1. The heat absorbed when ice melts can
be measured in a unit called a
(1) torr
(2) degree
(3) mole
(4) joule

Answers

4 a joule is the answer

Answer:

joule

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 patterns do you observe in the data?

Answers

Explanation:

What type of graph is most appropriate to present the data in Table 4? Create a graph of the data in Excel or another graphing software and submit it to your instructor.

Develop a detailed hypothesis for your experiment.What would your experimental approach be to test this hypothesis? Be detailed in your description of the experiment.

6.What are the independent, dependent, and controlled variables in your experiment?

What type of graph would be appropriate for this data set? Why?

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

What do you think caused this land formation ?

Answers

Erosion has caused it

(02.03 LC)
What term is used to describe the lowest energy level of a particle? (5 points)

Answers

Explanation:

Answer and Explanation: Photon is the basic unit of light. The excited state refers to the state when any specified electron gained some energy from surrounding. In the ground state, the electron carries no energy and this refers to its lowest energy level.

The law of unbalanced forces is also known as? :

Answers

Answer:

Newton's 2nd Law

Explanation:

Newton's Second Law of Motion is concerned with the effect that unbalanced forces have on motion.

Law of unbalanced forces is also know as Newton's 2nd Law

Elements that readily lose electrons tend to have
A) high ionization energy and high electronegativity
B) high ionization energy and low electronegativity
C) low ionization energy and low electronegativity
D) low ionization energy and high electronegativity

Answers

Answer:

C) low ionization energy and low electronegativity

Explanation:

What part of the atom tells you what element it is?
Number of electrons
Number of Photons (the light particle)
Number of Neutrons
Number of Protons

Answers

Answer: I believe it is the number of protons.

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.

What Group would this element be in?

Answers

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

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 is larger potassium or bromine

Answers

Answer:

potassium.

Explanation:

located at start of period 3, will have larger radius

Answer:

bromine

Explanation:

If an element has 11 protons and 11 neutrons in its nucleus it must be ?

Answers

Answer:

the answer is 11

Explanation:

Ok, let us understand what is an atomic number, an atomic number is simply the proton number, the atomic number is always seen at the bottom left corner in a element of a periodic table, it is the number of proton in a atom of a certain element.

The atoms in SBro6 are most likely being held together by what type of bond?
A. O metallic bonds
B.
ionic bonds
c. O polar covalent bonds
D
covalent bonds

Answers

Answer:

b

Explanation:im not really sure sorry if its wrong

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

the density of seawater is ____ fresh water?

Answers

Answer:

Since salt ions are heavier than water molecules, seawater is denser than freshwater. The density of seawater ranges from 1020 to 1030 kg/m 3 while the density of freshwater is about 1000 kg/m 3. Variations in salinity also cause the freezing point of seawater to be somewhat lower than that of freshwater.

Explanation:

A photon has a wavelength of 299 nm. What is the frequency of this photon?
1. 1×10^16 Hz
2. 1×10^15 Hz
3. 6.65 × 10^−37 Hz
4. 6.65 × 10^−28 Hz
5. 0.00100 Hz
6. 1.98 × 10^−31 Hz
7. 8.97 × 10^10 Hz
8. 1×10^6 Hz
9. 6.65 × 10^−18 Hz

Answers

The frequency(f) of this photon : 1 x 10¹⁵ Hz

Further explanation

Radiation energy is absorbed by photons

The energy in one photon can be formulated as

[tex]\large{\boxed{\bold{E\:=\:h\:.\:f}}}[/tex]

Where

h = Planck's constant (6,626.10⁻³⁴ Js)

f = Frequency of electromagnetic waves

f = c / λ

c = speed of light

= 3.10⁸

λ = wavelength

A photon has a wavelength of 299 nm.

λ = 299 nm = 299 x 10⁻⁹ m = 2.99 x 10⁻⁷ m

The frequency  :

[tex]\tt f=\dfrac{3.10^8}{2.99\times 10^{-7}}\\\\f=\boxed{\bold{1\times 10^{15}~Hz}}[/tex]

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

Answers

Answer:

7cm3

.........

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

How can you increase the momentum of an object?

(a) by decreasing its velocity
(b) by increasing its friction
(c) by increasing its mass
(d) by decreasing its acceleration

Answers

Answer:

(c) by increasing it's mass

Answer:

(C) by increasing its mass

Explanation: Mass and velocity are both directly proportional to the momentum. If you increase either mass or velocity, the momentum of the object increases proportionally. If you double the mass or velocity you double the momentum.

In what eon did single-celled organisms appear?

Answers

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

The chemical formula for the ionic compound aluminum sulfite is Al2(SO3)3. Explain why there are 2 cations for every 3 anions in this compound.

Answers

my mom !!!Explanation:

Musscle man

Which element has a mass number of 32?

a. argon ion

b. silicon ion

C. silicon

d. sulfur

Answers

i am pretty sure it’s D.Sulfur

All of the alkaline earth metals are similar in that – they are all artificially made elements they all have similar atomic weights. they all have the same ionic charge. they all show variable valences.

Answers

Answer:

they all have the same ionic charge.

Explanation:

Alkaline earth metals are group 2 metals on the periodic table. They are divalent elements because they have two valence electrons and ionize by donating these two valence electrons. Elements in this group have the same numbers of electrons in their outermost shell of their atoms. i.e. they all have the same number of valence electrons and ionic charge.

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.

A glass of fresh milk with 4% fat is an example of *
4 points
a heterogeneous mixture.
an element.
a homogeneous mixture.
a compound.

Answers

Answer:

heterogeneous

Explanation:

composition is not uniform through out

Maggie is sitting at a table wit Fred and Florence.Maggie has 10 markers but Fred and Florence each have only 7 markers.how can they share markers so each has 8

Answers

Answer:

Give them each one so all of you is 8

Explanation:

I hope it helps:)

Fred and Florence have a combined total of 14 markers. Meaning, the amount of markers between all three is 24. If Maggie gives one marker to Fred and one marker to Florence, then each of them will have 8 markers.

Which one has more Thermal Energy? A cup of boiling water or a bathtub of warm water? Explain! Please answer if you can, thank you!! P.S this is science but i just put it as chemistry?

Answers

Answer:

See explanation

Explanation:

The thermal energy of a substance is affected both by its mass and by its temperature. Thermal energy is defined as the total kinetic energy of all particles in an object.

Even though the cup of water has a higher temperature, the bathtub has more thermal energy because it contains much more mass of water compared to the cup. It will release more thermal energy to the surroundings compared to the cup of boiling water.

The bathtub of warm water has a higher total thermal energy due to its bigger volume, but the cup of boiling water has a higher average kinetic energy per particle.

The thermal energy of a cup of boiling water is greater than that of a warm bathtub. The sum of all the kinetic energies of the particles in a substance is its thermal energy. The temperature of boiling water is higher than that of warm bathwater. The average kinetic energy of the particles is measured by temperature. The average kinetic energy of the particles in a cup of boiling water would be higher than that of the warm water in a bathtub, which is normally between 38 and 45 degrees Celsius (100 and 113 degrees Fahrenheit), because water has a boiling temperature of 100 degrees Celsius (212 degrees Fahrenheit).

To know more about thermal energy, here:

https://brainly.com/question/3022807

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Which formula represents an ionic bond? 1 NaCl 2 N2O 3 HCl 4 H2O

Answers

Answer:

1 NaCl

Explanation:

NaCl is sodium chloride, and sodium chloride is an ionic compound because it's held together with ionic bonds.
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