Answer:
The answer is 19.8 gExplanation:
The mass of a substance when given the density and volume can be found by using the formula
mass = Density × volumeFrom the question
volume = 6 cm³
density = 3.3 g/cm³
We have
mass = 3.3 × 6
We have the final answer as
19.8 gHope this helps you
How can you remove energy from matter?
A By increasing its volume
B By lowering its temperature
C By increasing its pressure
D By boiling it
Answer:
you can remove energy from the matter by lowering its temperature
Lowering matter's temperature is an efficient way to take energy out of it.
B) By lowering its temperature is correct
What is energy?Energy is the quantifiable quality that is transferred to a body or a physical system and is noticeable in the performance of work as well as in the form of heat and light.
Energy is a conserved resource; according to the law of conservation of energy, energy can only change its form; it cannot be created or destroyed.
Primary energy sources come in a variety of forms, such as nuclear energy and fossil fuel energy.
Learn more about energy here:
https://brainly.com/question/13881533
#SPJ6
Mohs Scale of Mineral Hardness Hardness Mineral Absolute Hardness 1 Talc 1 2 Gypsum 2 3 Calcite 9 4 Fluorite 21 5 Apatite 48 7 Quartz 100 8 Topaz 200 According to the Moh's Scale of Mineral Hardness, the sample mineral that will scratch gypsum but not apatite is MOST LIKELY A) calcite. B) quartz. C) talc. D) topaz.
Answer: A) calcite
Explanation:
Hardness can be defined as the ability of the mineral to resist the scratch. It is the property to judge the hardness of the mineral. Mineralogist study this property of hardness using Mohs hardness scale.
Talc is the least hard substance after that gypsum, then calcite, fluorite, and then apatite.
The gypsum can be scratched by the calcite but the calcite cannot scratch apatite as it is softer than apatite.
ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
Nitrogen(N) is made up of 99.632% 14N and 0.368% 15N.
The atomic mass of 14N is 14.003 amu. The atomic mass of 15N is 15.000 amu.
What is the average atomic mass of nitrogen?
14.0 amu
14.006 amu
15.00 amu
15.50 amu
Answer:
14.006
Explanation:
Which of the following is a homogeneous mixture? a. Na(s) b. H2O(l) c. Cl2(g) d. NaCl(aq)
pls help
Answer:
H²0 is answer is H20 ok please
When a carbon atom joints chemically with an oxygen atom it makes carbon monoxide what is the term for carbon monoxide?
a. a molecule
b. a mixture
c. an alloy
d. an element
Answer:
A
Explanation:
I learned this last year
which of the following is a part of daltons atomic theory select all that apply
Answer:
Stewie Griffin
Explanation:
Florida is the __________________ "capital" of the US?
Answer:
Orange
Explanation:
Answer:
tropical
Explanation:
tropical tropical
If someone takes a material that looks pure, and then they do something to it that results
in two separate materials, how can they know if they originally had a pure-looking
mixture of two things that they simply separated into its parts, or if they originally had a
pure material that was a compound that was chemically broken down into new
compounds or elements?
lile
Answer:
The determination of the nature of the combination of the two separate materials in the original material that looks pure is based on the characteristic of the change process they undergo to become two separate materials.
Therefore, they can know if they initially had a mixture or a compound by the following steps;
1) If the two separated materials can be easily remixed to form the original material, then they likely have a mixture of the two separate materials
2) If the process that results in the formation of the two separate materials, involves the absorption or evolves heat or other forms of energy, then the original substance was a compound
3) If the two newly formed materials is seen to be a permanent change, then the original material was a compound
Explanation:
Calculate the mass of 9.75x1021 atoms of helium.
Answer: 99.5475
Hope this helps(:
is mechanical potential or kinetic energy
-2(-x-3) - 4x-1=13
gig
Answer:
that means a train railroad track dude
do you mean -2(-x--3) - 4x-1=13 without the gig
Explanation:
Which material is the best conductor? Which material is the best insulator? Which material would enable you to warm your hands the fastest?
LDPE
HDPE
latex
Mylar
Neoprene
Answer:
Mylar
Explanation:
The metals are good conductors of electricity whereas plastics and wood are referred to as the insulators. Here all the given options are insulators. The best insulator is Mylar. The correct option is D.
What are conductors and insulators?The materials which allow electricity to flow through them is defined as the conductors whereas the substances which resist or do not allow the current to pass through them are called the insulators.
The human body is a best conductor and the conductor has free electrons on their surface. The insulators are solid in nature and they do not have free electrons at all.
The term Mylar is also called the plastic films. It is one of the most recognized and widely used polyester films. It is an excellent electrical insulator which can effectively trap heat.
Here LDPE is a poor conductor of electricity and HDPE is chemically inert. The latex and neoprene are forms of rubber which does not conduct electricity.
Thus the correct option is D.
To know more about conductors, visit;
https://brainly.com/question/28582532
#SPJ3
what is 0.000980 in scientific notation
Answer:
9.80x10^-4
Explanation:
Answer:
9.80 x 10⁻⁴
Explanation:
The negative means that the decimal place was moved to the right and the exponent tells you how many places it was moved.
Explain what is Thermal Energy
Answer:
Thermal energy refers to the energy contained within a system that is responsible for its temperature. Heat is the flow of thermal energy. A whole branch of physics, thermodynamics, deals with how heat is transferred between different systems and how work is done in the process
Explanation:
thermal energy Is just heat
What’s the compound name for V2(S2O3)3
Answer: I HOPE THIS HELPS, HAVE A GREAT EARLY HALLOWEEN
Explanation:
PubChem CID: 1084
Molecular Formula: S2O3(2−) or O3S2-2
Synonyms: Thiosulphate THIOSULFATE ION sulfurothioate UNII-LLT6XV39PY Thiosulfate (S2O32-) More...
Molecular Weight: 112.13 g/mol
Which activity is the result of cell division at work
1. A bone breaks
2. A plant wilts
3. A wound heals
4. A meal is digested
19. Why should all measurements be done multiple times?
Answer:
Increasing precision with multiple measurements
Explanation:
The more measurements you take (provided there is no problem with the clock!), the better your estimate will be. Taking multiple measurements also allows you to better estimate the uncertainty in your measurements by checking how reproducible the measurements are.
Answer:
All measurements should be done twice to absolutely make sure that you have the correct measurement and to avoid any mistakes if you are like building lets say a table or doing a equation. The saying is measure twice cut once
Explanation:
WILL GIVE BRAINLIEST! URGENT!
In the vinegar and salt solution, is it possible there was some other compound that formed on the egg shell instead of the food coloring? Based on what you know about the charge on the egg shell and the ions in the solution, what might have reacted to form a compound on the shell instead of the food coloring?
Answer: Vinegar
Explanation:
The vinegar and salt affects the shell because food coloring does not affect anything besides the color so the viniger has substances which dissolves thing and the salt just made the vinegar a stronger substance. The Vinegar reactes to form a compund on the shell.
As you move left to right across a period, which of the following always increases?
A)
Atomic number
B)
Atomic mass
C)
Atomic weight
D)
Shell number
Answer:
A) Atomic number
Explanation:
if the latitude is high does it mean it’s is hot or cold PLEASE HELP
Answer:
cold
Explanation:
cold is when it get high on lattitude
how many atoms are in 3Mg(OH)2
In a formula unit of Mg(OH)₂, there are one magnesium ion and two hydroxide ions; or one magnesium, two oxygen, and two hydrogen atoms.
What is Formula Unit ?A formula unit is the chemical formula of an ionic compound that lists the ions in the lowest ratio that equals a neutral electrical charge.
In chemistry, we use chemical formulas to describe the number of elements or molecules that make up a substance.
Therefore , In a formula unit of Mg(OH)₂, there are one magnesium ion and two hydroxide ions; or one magnesium, two oxygen, and two hydrogen atoms.
Learn more about formula unit here ;
https://brainly.com/question/21494857
#SPJ2
Scandium (II) Oxide
A. ScO2
B. Sc2O2
C. ScO
D. ScC2O4
why do covalent bonds melt faster and have low melting points than ionic bonds?
Answer:
Covalent compounds have bonds where electrons are shared between atoms. Due to the sharing of electrons, they exhibit characteristic physical properties that include lower melting points and electrical conductivity compared to ionic compounds.
Explanation:
Which scenario BEST describes how an atom produces light?
electron loses energy as it transitions to lower energy level
electron gains energy as it transitions to lower energy level
electron gains energy as it transitions to a higher energy level.
electron loses energy as it transitions to higher energy level
Answer:
electron loses energy as it transitions to lower energy level
Explanation:
An atom is capable of absorbing and releasing electrons. The atom of a substance is said to be at its GROUND LEVEL STATE when it contains the lowest energy level. However, when it absorbs or takes in energy, it moves to a high energy level called EXCITED STATE. This level is unstable and hence, subject to declination.
Due to the instability of the excited state of an atom, it tends to lose the absorbed electrons and in the process of doing so, it emits or produce light. Therefore, according to this question, light is produced by an atom when the electron loses energy as it transitions to lower energy level i.e excited state to ground level state.
Materials
Crayon
Table 2. Investigating crayons and candle when heated
Property before
heating
Property after heating
Answer:
1 - Crayon
Before heating is solid
After heating is liquid
2 - Candle
Before heating is solid
After heating is liquid
Explanation:
Crayon when heated become liquid at a temperature of 115 degrees Fahrenheit or above. When the temperature reached to 120 degrees Fahrenheit for crayon it melts down completely.
When Candle is heated it melts and liquid form of wax falls off which again becomes solid in second after reaching the floor. The melting point of candle is 130 degree Fahrenheit or above.
A trainer wanted to train a dolphin to do a different trick every day and compare it with the trick on the original day to see how many tricks the dolphin
could learn to do.
if anyone can sole I give big brain
___. CO(g) +. ___ H2(g) ---> ___ C8H18(l) +. ___ H2O
Answer:
. 8 CO(g) + 17 H2(g) 1 C8H18(l) + 8 H2O
Explanation:
The following chemical reaction is balanced, but
the coefficients used are larger than necessary. Rewrite this balanced equation using the smallest coefficients possible.
9Fe(s) + 12H20(I) — 3Fe3O4(s) + 12H2(9)
Answer:
Explanation:
Divide each coefficient by 3:
3Fe(s) + 4H2O(l) ---> Fe3O4(s) + 4H2(g)
The balanced equation using the smallest coefficients possible:
3 Fe (s) + 4 H₂O (I) → Fe₃O₄ (s) + 4 H₂ (g)
What is the balanced chemical equation?A chemical equation can express a chemical reaction in terms of chemical symbols of the substances. A chemical equation exhibits reactants, products, and an arrow representing the direction of the reaction.
A balanced chemical equation exhibits an equal number of atoms of each element is equal on either side of the equation. From the law of conservation of mass, the total mass of the elements on both sides of the chemical equation.
Given, a chemical reaction is balanced, but the coefficients used are larger than required:
9Fe (s) + 12 H₂O (I) → 3 Fe₃O₄ (s) + 12 H₂ (g)
Divide the coefficients by 3 to get the smallest coefficients:
The chemical equation becomes:
3Fe (s) + 4 H₂O (I) → Fe₃O₄ (s) + 4 H₂ (g)
Learn more about the balanced chemical equation, here:
brainly.com/question/15052184
#SPJ2
Which of these best describes the relationship between density and the rate of heat transfer?
A.) Heat transfers between objects regardless of density.
B.) The greater the difference in densities between objects, the slower the heat will transfer.
C.) The less dense the object, the faster the heat will transfer.
D.) The denser the object the faster the heat will transfer.
Answer:
C.) The less dense the object, the faster the heat will transfer.
The solution in the beaker was a green color. This is an example of
Answer:
That means its a Transition Metal!
Explanation: