What is known as the amount of
mass in a given volume?

Answers

Answer 1

Answer:

Density

Explanation:

Density is a measure of how much mass is contained in a given volume


Related Questions

A Sedentary lifestyle is a way of life that includes a lot of physical activity true or false?

Answers

2h-7 I had that before unless I’m tripping but I did rechecked

3rd law of thermodynamics..

2 Different Examples((Thnks))

Answers

Answer:

See explanation

Explanation:

The third law of thermodynamics states that "the entropy of a perfect crystal of a pure substance approaches zero as the temperature approaches zero" (Wikipedia).

One example of the third law of thermodynamics has to do with steam. Steam is gaseous water. Since it is a gas, its molecules are free to move around therefore its entropy is high. When the temperature of the steam is decreased below 100 degrees, the molecules of steam loose energy and turn into liquid water and do not move as freely as they did in the gaseous state. If the temperature is further decreased to yield ice at zero degrees, the molecules of water are "frozen" in their positions and the entropy of the system decreases to zero.

Also, the ions in ionic crystal solids move around when the substance is in solution or in molten state hence the substance conducts electricity. When the ionic substance is in solid state, the ions do not move about and the entropy of the solid system tends towards zero.

Convert 4.00 moles of carbon to grams

Answers

You can view more details on each measurement unit: molecular weight of Carbon or grams The molecular formula for Carbon is C. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Carbon, or 12.0107 grams.

Answer:

As you know 1.00 moles of carbon to grams 12.0107

4.00 moles of carbon to grams is 48.0428

The molecular formula for Carbon is C. The SI base unit for amount of substance is the mole.

                                                                                                                                 

Explanation:

I Hope it help you

How many moles of carbon dioxide are formed when 32 moles of oxygen gas are consumed?

CH4(g) + 2O2(g) --> CO2(g) + 2H2O(g)

Answers

Answer:

16 mol CO2

Explanation:

Answer:

16 mol CO2

Explanation:

Based on the energy requirements or generation, reactions can be classified as either endothermic or exothermic. The reactions which need energy to proceed are known as endothermic reactions. The reactions in which energy is released are known as exothermic reactions. In other words, energy is supplied to endothermic reactions and is obtained from exothermic reactions.

The given reaction is:

CH_4 (g) + 2O_2 (g) -> CO_2 (g) + 2H_2O (g)

Here, methane reacts with oxygen to generate carbon dioxide and water.

The binding energy of a molecule is defined as the difference between energy of that molecule and its elements (in their ground state). The binding energy of the various species used in this reaction are:

methane: -75 kJ/mol

oxygen: 0

carbon dioxide: -394 kJ/mol

water: -242 kJ/mol

Thus, we can see that the formation of products will release more energy than reactants. We can also calculate the energy change when this reaction takes place.

Energy change = binding energy of products - binding energy of reactants

= -394 + 2 x (-242) - (-75) + 2 x 0 = -803 kJ/mol

negative sign indicates that the energy is released.

Thus, this reaction is exothermic and generates 803 kJ of energy per mole.

Hope this helps.

A person with a mass of 105 kg moves at a velocity of 1.5 m/s what is this person momentum?

Answers

Answer:

225kg.m.s

Explanation:

Momentum equals to mass times velocity

organic acids are weaker than inorganic once it is true or false​

Answers

Answer:

false

Explanation:

PLZZZ HELP I NEED ANSWER ASAP THE FIRST ANSWER GETS BRAINLIEST

How is thermal energy transferred from Earth's core?

Through the absorption of water heated by the sun
Through convection that takes place in the atmosphere
Through conduction from magma to water and rocks
Through the sun's radiation that heats the ground

Answers

Answer:through the conduction from magma to water and rocks

Explanation:

Fe2(SO4)3 +__BaCl2 → __BaSO4 +_
FeCl3

Answers

Answer:

Fe2(SO4)3 + 3BaCl2 → 2FeCl3 + 3BaSO4

what did you include in your response?
check all that apply ​

Answers

Answer: i don't know

Explanation:

u gave no information on what you're asking

Which subatomic particle has a negative charge?
1 Proton
2 Electron
3 Neutron

Answers

Answer:

2 Electron is the required answer

PLEASE HURRY
Which of the following is a subsurface event that takes place during the rock cycle?

Deposition

Erosion

Weathering

Plate tectonics

Answers

Answer:

Option D, Plate Tectonics

In the rock cycle, surface events takes place at the surface of earth. Thus,

weathering and erosion are surface events, while the subsurface events he take place in the deeper section of the earth . Examples of sub surface events are plate tectonics and mountain building or anything that takes place in the inner core of earth.

Explanation:

Answer:

Option D, Plate Tectonics

In the rock cycle, surface events takes place at the surface of earth. Thus,

weathering and erosion are surface events, while the subsurface events he take place in the deeper section of the earth . Examples of sub surface events are plate tectonics and mountain building or anything that takes place in the inner core of earth.

Explanation:

Option D, Plate Tectonics

In the rock cycle, surface events takes place at the surface of earth. Thus,

weathering and erosion are surface events, while the subsurface events he take place in the deeper section of the earth . Examples of sub surface events are plate tectonics and mountain building or anything that takes place in the inner core of earth.

The Quantum Mechanical model of electrons within an atom says______________

Answers

Answer:

See explanation

Explanation:

According to the wave mechanical model of the atom, electrons in the atom exhibit wavelike properties.

Unlike in Bohr's model where electrons were believed to be found in orbits of specified energy, electrons are found in orbitals which are defined as regions in space within which there is a high probability of finding an electron in accordance with the Heisenberg uncertainty principle.

An orbital is described by four sets of quantum numbers.

Question 8 of 10
What is R in the ideal gas law equation?
A. The kinetic energy of the gas
B. The number of moles of the gas
C. The molar mass of the gas
D. The ideal gas constant
SUBMIT

Answers

Answer:

D

Explanation:

The ideal gas law is: pV = nRT, where n is the number of moles, and R is universal gas constant. The value of R depends on the units involved, but is usually stated with S.I. units as: R = 8.314 J/mol·K

Kinetic energy increases as________?

Answers

Answer:

THE 1st one

Explanation:

how does the concentration of sodium thiosulphate affect the rate of reaction in between hydrochloric acid and sodium thiosulphate​

Answers

Answer: C

Explanation:

I know because i did it.


Which statement correctly compares electric charge with electric current?
A.They both require a human to make them.
B.Neither require charged particles.
C.They both require a battery and a bulb.
D.They both require a movement of charged particles.

Answers

Answer:

A. They both require a human to make them.

Explanation: The main difference between current and charge: Current: It is the rate of flow of charge (generally electrons). Current (I) is the physical quantity measured in amperes (A). Charge: It is the deficiency or excess of electrons on a body surface.

How many molecules of carbon dioxide are in 12.2 L of the gas at STP?

Answers

Answer:

Converting Between Moles and Liters of a Gas at STP. To convert between moles and the volume of a gas at STP, we will use the factor label method discussed in the first unit. This conversions relies on the fact that a mole of gas at STP has a volume of 22.4 L.

Explanation:

One molecule of carbon dioxide at STP has a volume of 22.4 liters . Thus number of molecules of carbon dioxide in 12.2 L is 3.27 × 10²³ molecules.

What is one molecule?

A molecule is formed by the combination of same or different kinds of atoms. A number molecules together form a compound. Water, carbon dioxide etc. are compounds.

One mole of a molecule contains 6.022 × 10²³ number of atoms. Similarly, one mole of a compound contains, 6.022 × 10²³ number of molecules.This number is called Avogadro number.

At standard temperature and pressure (STP) that is at 298 K and 1 atm pressure, one mole of any substance carry 22.4 L. Thus number moles of 12.2 L of carbon dioxide is 12.2 / 22.4 = 0.54 moles.

Number of molecules = 0.54 moles × 6.022 × 10²³

                                     =  3.27 × 10²³

Hence, number of molecules of carbon dioxide in 12.2 L is 3.27 × 10²³ molecules.

To find more about Avogadro number, refer the link below:

https://brainly.com/question/11907018

#SPJ2

Name the method that is used to separate cream and skim milk from each other

Answers

Answer:

the separator is a centrifugal device that separates milk into cream and skimmed

I hope it helps you

All of the devices below either use or produce electrical energy. Which one converts mechanical energy to electrical energy?
battery
electric drill
wind turbine
electric guita

Answers

Answer:

C- Wind turbine

Explanation:

Answer:

its c wind turbine

Explanation:

2. Put the following steps of scientific inquiry in order, please number 1‐3.
_______Make an observation
_______ Ask a question
_______ Form a hypothesis

Answers

Answer:

1. Ask a question

2. form a hypothesis

3. Ask a question

Explanation:

If I have one mole of sulfur, how many atoms would that be?

Answers

Answer:

Atoms of sulfur = 9.60⋅g32.06⋅g⋅mol−1×6.022×1023⋅mol−1

Explanation:

because the units all cancel out, the answer is clearly a number, ≅2×1023 as required.

burning methane in air is an exothermic reaction

true
false

Answers

Answer:

Hydrocarbon fuels like methane (CH4) burn in the presence of oxygen to produce carbon dioxide and water. This process of combustion releases energy. When energy is released during the course of a chemical reaction, it is said to be an EXOTHERMIC reaction. The combustion of of methane gas releases 50.1 kJ/g.

true

The burning of methane in the presence of air is an exothermic reaction. The given statement is true.

Exothermic Reaction:

The chemical reaction in which heat energy is released during the reaction.

For example-  the burning of 1 mole of methane in the air releases 810 kJ of heat energy.

[tex]\bold {CH_4 +2O_2 \rightarrow CO_2 + 2H_2 O}\ \ \ \ \ \ \ \bold{\Delta H = 810\ kJ}[/tex]

Therefore, the burning of methane in the presence of air is an exothermic reaction.

To know more about Exothermic Reactions:

https://brainly.com/question/14969584

S-L Line
760
L-G Line
LIQUID
PRESSURE OF THE SUBSTANCE mm Hg
380
SOLID
58
GAS
-S-G Line
O'c
100°C
TEMPERATURE OF THE SUBSTANCE
S-L Line: Line showing conditions in which solid
and liquid phases are in equilibrium.
L-GLine: Line showing conditions in which liquid
and gas phases are in equilibrium
S-G Line: Line showing conditions in which solid
and gas phases are in equilibrium
What is the approximate vapor pressure when the gas condenses at 80'C?
200
05
760
430

Answers

2 solid 1 liquid 3 gas 430 is the answer

what produces energy from sugar through chemical reactions it can also called the PowerHouse of cell??​

Answers

Answer:

Mitochondria are known as the powerhouses of the cell. They are organelles that act like a digestive system which takes in nutrients, breaks them down, and creates energy rich molecules for the cell. In cellular respiration sugar with the help of oxygen is broken down into ATP (energy molecule).

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Q26. Aqueous sodium oxalate (C204)2- and aqueous lead (II) nitrate react to product solid
lead (II) oxalate and aqueous sodium nitrate.
3.
I need Balanced chemical equations

Answers

Na₂C₂O₄(aq) + Pb(NO₃)₂⇒PbC₂O₄(s) + 2NaNO₃(aq)

Further explanation

Given

Word equation

Required

Balanced equation

Solution

Convert to skeleton equation

Na₂C₂O₄(aq) + Pb(NO₃)₂⇒PbC₂O₄(s) + NaNO₃(aq)

Balanced equation

Give a coefficient

Na₂C₂O₄(aq) + aPb(NO₃)₂⇒bPbC₂O₄(s) + cNaNO₃(aq)

Make an equation

C, left = 2, right =2b⇒2b=2⇒b=1

Na, left = 2, right = c⇒c=2

O, left = 4+6a, right = 4b+3c⇒4+6a=4b+3c⇒4+6a=4.1+3.2⇒6a=6⇒a=1

The equation becomes :

Na₂C₂O₄(aq) + Pb(NO₃)₂⇒PbC₂O₄(s) + 2NaNO₃(aq)

Determine the formula for iron l oxide

Answers

Fe2O is the formula for that

what are the 2 characteristics of fluids‍♂️​

Answers

I think that you should use your phone

If I fill a balloon with helium it will float. Why does it float? Estimate the mass of helium in the balloon.

Answers

Answer:

It only makes objects float if they are less dense than their surroundings, like a boat on water, or a helium balloon in air. Buoyancy works due to displacement. ... In the case of a balloon, the helium inside the balloon weighs less than the same volume of air the balloon displaces

Explanation:

Answer:

In the case of a balloon, the helium inside the balloon weighs less than the same volume of air the balloon displaces. ... So a helium balloon has two opposing forces acting on it: gravity pulling it down, and buoyancy pushing it up. Buoyancy wins, so you can't really weigh a balloon, even though it does have weight.

Knowing the volume of air displaced by the helium balloon, we can calculate the maximum mass the balloon can lift. ... Helium, which has a mass of 4.00 g/mol, has a density of 0.164 g/l. Thus, a one-liter balloon of helium can lift a mass of (1.18-0.164) = 1.02 g.

refers to the way in which atom bond with each other​

Answers

Answer:

Atoms have a central nucleus with positively charged protons and neutral neutrons; negatively charged electrons circle the nucleus. The electrons that are involved in chemical bonding are those electrons in the outermost orbit, referred to as valence electrons.

Explanation:

Chemical bond refers to the way in which atom bond with each other

What is chemical bond?

A chemical bond is a form of attraction or bond that exist between atoms, ions or molecules. This bond allows the formation of chemical compounds.

The bond can be as a result of electrostatic force of attraction.

Therefore, Chemical bond refers to the way in which atom bond with each other

Learn more on Chemical bond here,

https://brainly.com/question/819068

Large areas on the leaves of some plants lack chlorophyll and are therefore not green in color. How does this most likely affect photosynthesis?

Not enough sunlight is captured in these areas of the leaves.
Carbon dioxide cannot enter these areas of the leaves.
Too much glucose builds up in these areas of the leaves.
Oxygen cannot be released in these areas of the leaves

Answers

Answer:

Not enough sunlight is captured in these areas of the leaves.

Explanation:

Photosynthesis is the process whereby green plants manufacture their food using carbon dioxide and water in the presence of sunlight.

The sunlight is the energy source which drives this chemical change or reaction.

Therefore, to capture the sunlight, the green pigment called chlorophyll is needed. Without this sunlight, photosynthesis will not take place. Photosynthesis is a light dependent reaction. Without light, the process is greatly hampered
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