Answer:
C
Explanation:
Read it from my 8th grade text book a few years back.
Answer:
C l i f e
Explanation:
What is the chemical formula for Fluorine trisulfide ?
Answer:
F2O8S3
Explanation:
What is the purpose of the stairstep pattern on the periodic table of the elements?
Answer: The bold staircase in the periodic table allows us to classify which elements are metalloids.
Explanation: Additionally, it acts like a "divider" that allows us to properly distinguish the metals from the non-metals in the periodic table.
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Intermolecular forces and Kinetic energy together help determine whether a substance will
be a solid, liquid, or a gas
True or false
Answer:
true
Explanation:
Furnaces are typically located in basements. Which room would most likely feel the effects of the furnace first kicking
on?
the basement
a room on the first floor
a room on the second floor
the garage
Answer:
the answer is A ( The basement)
HOPE THAT HELPSSS!!!
Answer the basement
Explanation: i took the test
You are watching the Indy 500 car race on television with your brother. He says, "Did you know that these cars race at a speed of over 200 mph? That velocity is amazing!" Having learned that speed and velocity are not the same, you decide to explain the difference to your brother.
Answer:
See explanation
Explanation:
All physical quantities are broadly classified into scalar quantities and vector quantities.
Scalar quantities have magnitude but do not have direction. Vector quantities have both magnitude and direction. Hence the main difference between a scalar quantity and a vector quantity is that a vector has direction while a scalar quantity does not.
Speed is a scalar quantity while velocity is a vector quantity. You have just specified a magnitude of 200 mph without mentioning its direction. This implies that you are referring to speed of the cars in the race and not velocity because velocity of the cars must indicate the direction!
Which processes occur when energy is removed from a substance
Answer:
Note that melting and vaporization are endothermic processes in that they absorb or require energy, while freezing and condensation are exothermic process as they release energy.
is mending a broken bone chemical change and why(short answer pls)
Answer:
In a physical change, the substances involved retain their original properties. A new substance is not formed. A physical change can be reversed. Chemical changes happen on a molecular level when two or more substances chemically bond together.
Mending a broken bone is a chemical change as to heal the bone enzymes are released which are chemicals.
What is a chemical change?Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.
There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
There are three types of chemical changes:
1) inorganic changes
2)organic changes
3) biochemical changes
During chemical changes atoms are rearranged and changes are accompanied by an energy change as new substances are formed.
Learn more about chemical change,here:
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what is a liquid? can a liquid change shape or volume
Answer:
A liquid is a substance that is wet and yes it can change shape and volume
Explanation:
Will mark brainliest. Anyone willing to do this?
Answer:
ACTIVITY 1
Sample 1 has a stronger taste of lemon, and is more sour.
Sample 2 has a sweeter taste, my guess is because there's more sugar:lemon juice ratio.
Use the following terms in the same sentence chemical reaction and precipitate
Answer: Precipitate is a sign that a chemical reaction has occurred.
BRAINIEST PLS HELPP
Answer:
0.179kg/m3 hope that helps you out
The charge of the atom is _______ because there are ______ numbers of and______ in an atom.
Answer:
see below
Explanation:
the charge of the atom is neutral because there are equal numbers of protons and electrons in an atom.
hope this helps
please mark
how does a drupe fruit differ from a hesperidum fruit.
Answer:
hi
Explanation:
Answer:
Fleshy Fruits: All of most of the ovary wall (pericarp) is soft or fleshy at maturity. ... partitions, juicy seed vesicles, and a leathery exocarp similar to a hesperidium. ... This is a very common dry fruit found in many different plant families.
Explanation:
How does a material get a negative charge?
Explanation:
When insulating materials rub against each other, they may become electrically charged . Electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. The material that gains electrons becomes negatively charged. The material that loses electrons is left with a positive charge.
how many grams of NH3 are in 45.9
what kind of change is heating of mercuric oxide?
Answer:
Chemical change.
Explanation:
When it is heated it decomposes into mercury and oxygen gas. The mercury oxide reactant becomes the silver color of mercury. Hence, a color change can be noticed throughout the reaction.
Answer:
chemical change
Explanation:
In the USA 3.5 millions pounds of whole milk are used daily to make milk chocolate how many gallons of milk are used daily
Answer:
0.4193924945 million
Explanation:
3.5(0.119826427)
Which characteristic describes the traposphere
Answer:
It is the wettest layer of the atmosphere.It extends upto 10km upward from sea level.
This question is about energy transfers. Which is the correct definition of conduction.'
(1 Point)
Transfer of thermal energy when particles in a heated fluid rise.
Transfer of thermal energy as a wave.
Transfer of thermal energy by the vibration of particles.
Suppose you were to make 36 grilled cheese sandwiches, how many pieces of bread do you need? show your work
Which of these industrial processes typically involves electrolysis?
purifying water for drinking purposes
purifying copper to produce copper wiring for homes
neutralizing an acidic solution by adding a base
neutralizing a basic solution by adding an acid
Answer:
purifying copper to produce copper wiring for homes
Explanation:
Answer:
b.purifying copper to produce copper wiring for homes
Explanation:
Why do molecular compounds have low melting points and low boiling points relative to ionic substances?
Answer:
The melting and boiling points of molecular compounds are generally quite low compared to those of ionic compounds. This is because the energy required to disrupt the intermolecular forces between molecules is far less than the energy required to break the ionic bonds in a crystalline ionic compound
If I combine atoms then I must be performing which process?
A) Radiation Reaction
B) Strong Force
C) fission
D)Fusion
Answer:
D: fussion
Explanation:
The process called nuclear fussion.
for example, four hydrogen atoms combine in a nuclear fussion reaction to form one helium atom.
3. How many moles of KCl is produced according to the chemical reaction?
2KCIO3(s) -------> 2KCI(s) + 302(g) M
Answer:
the answer should be: 12.00 Mol KCIO³ × 3 Mol 0² divided by 2 mol KCIO³ = 18.00 mol 0²
b) Write a few paragraphs describing the chemical reaction and explaining the energy change in the reaction. Your document should: i. identify the reactants and products. ii. describe the change in energy that occurs as bonds are broken and formed. iii. identify how the potential energy of the reactants compares to the potential energy of the products. iv. state and explain the net change in enthalpy. v. identify whether the reaction is endothermic or exothermic. vi. explain how energy is conserved between the reaction and the surrounding environment.
Answer:
The energy change in a chemical reaction is due to the difference in the amounts of stored chemical energy between the products and the reactants. This stored chemical energy, or heat content, of the system is known as its enthalpy.
Explanation:
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Answer:
here is what i put for this project:
The reaction in this project is exothermic. The energy change in a chemical reaction is due to the difference in the amounts of stored chemical energy between the products and the reactants. This stored chemical energy, or heat content, of the system is known as its enthalpy. The potential energy in reactants is higher than the potential energy of products in an exothermic reaction. Since energy is given off, the products are lower in energy than the reactants. The energy that is given off is a result of the formation of new bonds.
The change of the enthalpy happening in the chemical reaction is different from the pathway in between the initial and the final states. The addition of the equation gives the net change of the enthalpy. Enthalpy change is the amount of heat evolved or absorbed in the reaction under constant pressure. This can be calculated by checking the amount of heat evolved during the reaction. This reaction occurs at a constant pressure.
Part B
Do you think these fish are an example of natural selection among two populations of the same species? Explain your
answer.
B I
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А
JE 3
1
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(hp
Answer:
The two fish are of the same species because they can mate with each other. Also, the characteristics of the blind cave fish enable them to live in caves. Eyes need energy. So, developing bodies with no eyes allowed these fish to function more efficiently.
Explanation:
plato answer
atoms, predict the ratio of metal cationic (+) atom
to nonmetal anionic (-) atom in the compound.
Lithium 1s22s1
Chlorine 1s22s22p6 3s23p5
A. 1:1
B. 1:2
C. 2:1
D. 3:1
D. 3:1
Answer:
A. 1:1
Explanation:
Lithium 1s2 2s1
Chlorine 1s2 2s2 2p6 3s2 3p5
Lithium is a group 1 element. When it forms a compound, it loses it's one valence (outermost) electron.
Chlorine is a group 7 element. When it forms a compound, it gains one electron to achieve a stable electronic configuration.
Since Li loses one electron and Cl gains one electron. The formular of the compound formed would be;
LiCl
The correct option is;
A. 1:1
The process plants use to make sugar for food
Answer:
PHOTOSYNTHESIS!
Explanation:
How do scientists think?
Answer:
hmmm
Explanation:
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A bond between two iodine atoms would have what as the percent ionic character
A. 53%
B. 83%
C. 0%
D. impossible to calculate
Answer:
Your answer should be 53%
I'm very sorry if I'm wrong I have not done this in forever
Explanation:
No explanation