Answers
Answer:
calcium+ethanoic acid= carbon dioxide + water
Zinc + ethanoic acid= zinc ethanoate+water
Answer:
calcium + ethanoic acid → calcium ethanoate + water
zinc + ethanoic acid → zinc ethanoate + water
Related Questions
What are the atomic numbers for sodium,iron and sulfur???
Answers
Answer: sodium-11 iron-26 sulfur-16
Explanation:
Answer:
sodium:11
iron:26
sulfur:16
Explanation:
pls..give..brainlist...to the..above..person..thx..u
What role does energy play in sound? Pls help this is due today
A. Sound waves have nothing to do with energy.
B. Sound waves carry energy.
C. Energy is present in loud sounds only.
D. Energy is present in high-pitched sounds but not in low-pitched sounds.
Answers
Answer:
pretty sure it is letter B
Answer:
B
Explanation:
What is the moment for the left hand side of this balance?
Answers
Answer:
18
Explanation:
6 (weights) x 3 (distance) = moment
The whole reason things stay afloat or sink is because water is
Answers
Answer:
I think the density of the object determines if it floats or sinks
I need help I really confused it doesn’t make any sense to me
Answers
Answer:
i would say shape because the other answers do not logically compute. A is a transformation from solids to liquids or vice versa what B is and C IS THE ANSWER because the only action that is occurring is the tearing of the previous shape of the paper.
Explanation:
A larger bullet does not necessarily have more momentum than a smaller bullet Explain why
Answers
Answer:
yes
Explanation:
a larger bullet weighs more then a smaller bullet so the smaller bullet goes faster.
Answer:
Explanation:
Momentum is dependent on mass and velocity. So, the smaller bullet can be moving at a much greater speed than the larger one.
I'm not getting any help here
Answers
Answer:
Oh I am sorry
Explanation:
How can I help you
Answer:
same
Explanation:
I don't know what is hapening
Which is NOT true of ionic bonding?
A:
Occurs between metals and non metals
B:
Involves the losing and gaining of electrons
C:
Positive and negative ions are formed?
D:
Involves the sharing of electrons
Answers
Answer:
D is wrong
Explanation:
it doesn't involves any kind of sharing of electrons
The statement that is NOT true of ionic bonding is:
D: Involves the sharing of electrons.What is Ionic bondingIonic bonding does not involve the sharing of electrons between atoms. Instead, it involves the transfer of electrons from one atom to another.
In an ionic bond, one atom, typically a metal, donates electrons to another atom, typically a nonmetal, resulting in the formation of positively charged ions (cations) and negatively charged ions (anions). The opposite charges of the ions then attract each other, creating the ionic bond.
Option A is true, as ionic bonding typically occurs between metals and nonmetals.
Option B is true, as ionic bonding involves the losing of electrons by one atom and the gaining of electrons by another atom.
Option C is true, as positive and negative ions are formed as a result of the electron transfer in ionic bonding.
Therefore, the statement that is NOT true of ionic bonding is option D, which states that it involves the sharing of electrons.
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A sample of a compound contains 60.0 g C and 5.05 g H. Its molar mass is 78.12 g/mol. What is the compound’s molecular formula?
Answers
Answer:
c6h6
Explanation:
How much energy is needed to heat 9.3 grams of silver metal from 21 °C to 52 °C, if the
specific heat of silver metal is 0.240 J/g °C?
Question 5
4 pts
How much heat must be added if 160 grams of water is heated from 24 °C to 85 °C?
(The specific heat of water is 4.184 J/g °C)
Look at picture
ASAP please will mark as brainlist don’t got much time
Answers
Answer:
question 4. 69.19J
question 5. 40835.84J
Explanation:
question4.
heat needed = mass × specific heat capacity × change in temperature
= 9.3× 0.240×(52-21)
=69.192J
question 5.
heat added = 160× 4.184×(85-24)
= 40835.84J
HELP FAST!
This food chain is one part of a ____ within an ecosystem.
A)
biome
B)
community
C)
population
D)
species
Answers
Answer:
Species
Explanation:
How many reactants are there in a single replacement reaction?
Answers
Answer:
One reactant
Explanation:
Determine the number of particles present in 8.6 moles of Aluminum
Answers
Answer:
5,18*10^{24}
Explanation:
N=n*Na
N=8.6*6.02*10^{23}
N=5,18*10^{24}
How do most diamonds get their color?
Answers
Answer:Most naturally-coloured diamonds are created when trace elements interact with the carbon atoms during the diamond's creation. The presence of chemical elements such as nitrogen, sulphur, and boron can colour diamonds in shades of yellow, green, and blue. ... Trace elements have never been found in pink diamonds.
in other words it depends on the heat of how it is made
what family and group nitrogen and phosphorus in?? I know they are both non-metals, just want to know the name, thanks
Answers
Nitrogen group element, any of the chemical elements that constitute Group 15 (Va) of the periodic table. The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), bismuth (Bi), and moscovium (Mc).
They are also known as reactive metals !
What is changes in a chemical reaction
Answers
between vertebrae
2-The backbone contains.......
c. joints
b. tendons
a. cartilages
Answers
if a piece of aluminum has a density of 2.7g/cm^3. the mass of 5.2g,what is the volume
Answers
Answer:
Gold has a density of 19.3 grams per cubic centimeter, that is, 19.3 g/cm3 or 19.3 g cm-3. Aluminium has a density of 2.7 grams per cubic centimeter, that is, 2.7 g/cm3 or 2.7 g cm-3.
Explanation:
Answer:2.7 g cm-3.
Explanation:Gold has a density of 19.3 grams per cubic centimeter, that is, 19.3 g/cm3 or 19.3 g cm-3. Aluminium has a density of 2.7 grams per cubic centimeter, that is, 2.7 g/cm3 or 2.7 g cm-3.
How did life evolve from nonliving matter?
Answers
Please help thank you!
Answers
Water can dissolve many other molecules.
Question 2 options:
True
False
Answers
Answer:
true
Explanation:
took the test
Which will not appear in the equilibrium constant expression for the reaction below?
H.O(g) + C(s) >H(g) + CO(9)
[H2O]
[C]
[Ha]
[CO]
Answers
Answer:
[C]
General Formulas and Concepts:
Chemistry
Kinetics
Rate LawsEquilibrium
Equilibrium ExpressionsExplanation:
Equilibrium Expressions are only written for either aqueous solutions or gases. Solids and liquids are negligible for equilibrium. Our equilibrium constant expression would be [tex]\displaystyle K = \frac{[CO][H]}{[H_2O]}[/tex].
∴ Carbon C (s) is not included in the expression and is our answer.
i hate chemistry sm pls help
Answers
c
O2: 7 mol
CO2: 4 mil
What is the name of the following ionic compound?
AlF3
ASAP QUICCKKKM
Look at picture
Answers
Aluminum fluoride is the name of the following ionic compound. The recognised authority on chemical terminology and nomenclature is IUPAC.
IUPAC is the widely acknowledged authority on chemical terminology and nomenclature, and two IUPAC organisations play key roles in this activity: The Interdivisional Commission on Terminology, Nomenclature, as well as Symbols and Division VIII - Chemical Nomenclature or Structure Representation. Unambiguous, uniform, and reliable nomenclature as well as terminology for particular scientific fields are developed by IUPAC as one of its main activities. These recommendations are typically presented as glossaries of terms for particular chemical disciplines. Aluminum fluoride is the name of the following ionic compound.
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What is the result of the following calculation? Record to the correct number of significant figures.
7.830 g x 1.041 = ?
Answers
Answer:
8.15103
g
x
Explanation:
i don’t know:(
please help!
Answers
Answer:
its b , Symmetrical and nonpolar
Explanation:
Its c
Answer:
Explanation:
hiii please help i’ll give brainliest
Answers
Answer:
C option
Explanation:
Use what you know about the orbits of Earth and the moon to sort the phrases into the correct Category.
Answers
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Astrophysics.
Let's categorize them eventually ==>
1.) Earth ==> 1.) travels around the Sun
2.) takes 365.25 days .
2.) Moon ===> 1.) travels around the Earth
2.) Takes 27.3 days.
Explain how cells are organized within a multicellular organisms
Answers
Answer:
For any multicellular organism to survive, different cells must work together. The right type of cell must be in the right place to do the work that needs to be done. Organization starts with the cell. Cells in multicellular organisms are specialized for a specific function.
Explanation:
Answer:
Cells in multicellular organisms are organised into tissues and tissues are organised into organs, organs are organised into organ system, and finally, organ systems are organised into an organism
When scientist want to measure the brightness of a star while considering the distance from the observer what are they going to
measure?
O Absolute brightness
O Apparent brightness
O Absolute magnitude
O Apparent magnitude
Answers
Answer:
apparent brightness
Explanation:
thats it not sure buttt
Answer:
This wide-field view of the sky around the bright star Alpha Centauri was created from photographic images forming part of the Digitized Sky Survey 2. The star appears so big just because of the scattering of light by the telescope's optics as well as in the photographic emulsion. Alpha Centauri is the closest star system to the Solar System. Image released Oct. 17, 2012. (Image credit: ESO/Digitized Sky Survey 2)
A glance at the night sky above Earth shows that some stars are much brighter than others. However, the brightness of a star depends on its composition and how far it is from the planet.
Astronomers define star brightness in terms of apparent magnitude — how bright the star appears from Earth — and absolute magnitude — how bright the star appears at a standard distance of 32.6 light-years, or 10 parsecs. (A light-year is the distance light travels in one year — about 6 trillion miles, or 10 trillion kilometers.) Astronomers also measure luminosity — the amount of energy (light) that a star emits from its surface.
Measuring star brightness is an ancient idea, but today astronomers use more precise tools to obtain the calculation.

From Greek to modern times
More than 2,000 years ago, the Greek astronomer Hipparchus was the first to make a catalog of stars according to their brightness, according to Dave Rothstein, who participated in Cornell University's "Ask An Astronomer" website in 2003.
"Basically, he looked at the stars in the sky and classified them by how bright they appear — the brightest stars were 'magnitude 1,' the next brightest were 'magnitude 2,' etc., down to 'magnitude 6,' which were the faintest stars he could see," Rothstein wrote.
Human eyes, however, are not very discerning. Large differences in brightness actually appear much smaller using this scale, Rothstein said. Light-sensitive charged-coupled devices (CCDs) inside digital cameras measure the amount of light coming from stars, and can provide a more precise definition of brightness.
Using this scale, astronomers now define five magnitudes' difference as having a brightness ratio of 100. Vega was used as the reference star for the scale. Initially it had a magnitude of 0, but more precise instrumentation changed that to 0.3.
Orion is the brightest and most beautiful of the winter constellations. Some of its stars, including Betelgeuse and Rigel, are among the brightest stars. (Image credit: Starry Night Software)
Apparent magnitude vs. absolute magnitude

When taking Earth as a reference point, however, the scale of magnitude fails to account for the true differences in brightness between stars. The apparent brightness, or apparent magnitude, depends on the location of the observer. Different observers will come up with a different measurement, depending on their locations and distance from the star. Stars that are closer to Earth, but fainter, could appear brighter than far more luminous ones that are far away.
"It is the 'true' brightness — with the distance dependence factored out — that is of most interest to us as astronomers," stated an online course on astronomy from the University of Tennessee.
"Therefore, it is useful to establish a convention whereby we can compare two stars on the same footing, without variations in brightness due to differing distances complicating the issue."
Explanation:
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