Answers
Answer:
B
Explanation:
Malleability describes a substance's ability to deform under pressure and heat
Examples: Gold, iron, aluminum, copper, silver, and lead. Gold and silver are highly malleable. When a piece of hot iron is hammered it takes the shape of a sheet.
Related Questions
in glycolysis, what starts the process of glucose breakdown?
Answers
Answer:
That would be ATP, hope this helps! :)
1. Every summer Cheyanne drives to California. It is 3600 km to get there. If she spends 32 hours driving, what is her speed?
Answers
Answer:
Their speed = 69.9043 miles per hour
orTheir speed = 112.5 kilometers per hour
Explanation:
The aqueous fluid outside of a cell is known as
fluid.
O interstitial
O intracellular
O semipermeable
O desmotic
Answers
how should the mass of copper metal at the end of the reactions compare to the starting mass of copper?
Answers
Answer:
The produced mass of copper should equal the starting mass of copper.
hello does anyone get this????????????? pls help
Answers
Explanation:
physical changes : boiling water, freezing water, a pencil being sharpened.
chemical change : rotting cheese, exploding dynamite.
Answer:
boiling water
a pencil being sharpened
freezing water
Explanation:
A change that does not lead to any difference in chemical composition of a substance is known as a physical change.
For example, shape, size, mass, volume, density, boiling point, etc of a substance are all physical properties.
On the other hand, changes that lead to bring change in chemical composition of a substance is known as a chemical change.
For example, exploding dynamite, rotting cheese etc are all chemical changes.
Chemical change is the change in which there is rearrangement of atoms and the new substances get formed.
Boiling water only changes the phase from liquid to gas and thus is a physical change.
Pencil on being sharpened only gets smaller in size and thus is a physical change.
exploding dynamite would result into formation of new substances and hence a chemical change.
Freezing water only changes the phase from liquid to solid and thus is a physical change.
Rotting cheese would result in formation of new substances and hence a chemical change.
Therefore, we can conclude that following are the physical changes in matter.
boiling water.
a pencil being sharpened.
freezing water.
a scientist uses 52g of Na2SO4 for a chemical reaction. how many moles of Na atom does the compound contain a) 0.366 b) 0.732 c) 8.422 d)16.845
Answers
Answer:
b). 0.732
Explanation:
52g Na₂SO₄ x 1 mol Na₂SO₄ x 2 mol Na
------------------------- -------------------- = 0.732 mol Na
142.04 g Na₂SO₄ 1 mol Na₂SO₄
Atomic Mass Units
Na₂ = 22.99 x 2 = 45.98
S = 32.06
O₄ = 16 x 4 = 64
Na₂SO₄ = 45.98 + 32.06 + 64 = 142.04
There are 2 moles of Na in 1 mole of Na₂SO₄
Each school day, it takes Mrs. Wohlfert an hour to drive 50.3 miles to drop Dezzie off at daycare. While she travels on US 20, she looks at her speedometer and it says she's going 75 mph, so she better slow down! Once she arrives in Plymouth, she takes 5 minutes to get Dezzie into daycare and say goodbye. It takes Mrs. Wohlfert 10 minutes to drive the 3.9 miles between daycare and Lincoln. Mrs. Wohlfert stays at school for the day for 8 hours, then leaves Lincoln to pick up Dezzie at daycare and head home.
What is Mrs. Wohlfert's total distance traveled in a day?
What is Mrs. Wohlfert's total time travelling from when she leaves her house in the morning to when she gets back home in the afternoon?
What was Mrs. Wohlfert's instantaneous speed that she saw during her trip to school?
Answers
Answer:
7.06
Explanation:
because its improper
which element has the highest monetary value?
A) gold
B) Silver
C) nickel
D) lead
Answers
sodium atom cannot exist freely In nature but argon atom can.give reason
Answers
Answer:
argan can exist freely in nature because it has stable configuration whereas sodium atom cannot exist freely nature because do not have stable configuration.
Explanation:
brainiest!!!!!
Because that's the correct answer
If greenhouse gases in the atmosphere act like a blanket around the Earth, how is this "blanket” being changed by human activities?
It is getting thinner and keeping the Earth cooler.
It is getting thicker and keeping the Earth cooler.
It is getting thicker and keeping the Earth warmer.
It is getting thinner and keeping the Earth warmer.
Answers
Answer:
It is getting thicker and keeping the Earth warmer.
Answer:
it is getting thinner and keeping the earth warmer
2NaClO3 ——> 2NaCl + 3O2
1) if you produced 114.25g NaCl, how many grams of NaClO3 did you decompose?
2) Using the same reaction in the first exercise; how many particles of NaClO3 are needed to
produce 68.30L of oxygen?
Answers
Answer:
1) 208.09 g2) 7.11 × 10²² particlesExplanation:NUMBER ONEFind moles of Known Substance (NaCl)
Moles of NaCl = mass ÷ molar mass
= 114.25 g ÷ 58.44 g/mol
= 1.955 mol
Use Mole Ratio of Known to Unknown (NaCl : NaClO₃) to Determine Moles of Unknown
The mole ratio of NaCl to NaClO₃ is 2 to 2 or simply 1 to 1.
This means that for each mole of NaCl produced the same number of moles of NaClO₃ was decomposed.
∴ since moles of NaCl = 1.955 mol,
then moles of NaClO₃ = 1.955 mol
Find Mass of Unknown
Mass of NaClO₃ = moles × molar mass
= 1.955 mol × 106.44 g/mol
= 208.09 g
NUMBER TWODetermine the Moles of Known (O₂)
moles of O₂ = (volume × density) ÷ molar mass
= (68.30 L × 0.0828 g/L) ÷ 32 g/mol
= 0.177 mol
Use Mole Ratio of Known to Unknown (O₂ : NaClO₃) to Determine Moles of Unknown
Mole ratio of O₂ : NaClO₃ is 3 : 2. Therefore for each mole of oxygen produced, ²/₃ the moles of NaClO₃ is produced.
∴ if moles of O₂ = 0.177 mol
then moles of NaClO₃ = 0.177 mol × ²/₃
= 0.118 mol
Find the Number of Particles of Unknown
Number of particles = moles × Avogadro's Number
= 0.118 mol × (6.022 × 10²³ particles/mol)
= 7.11 × 10²² particles
Someone pls help me I will make you brain
Answers
Answer:
It is true answer. Ozone = O3
If a planet's distance from the Sun is doubled, which of the following is true?
The orbital period increases.
The orbital period increases.
The eccentricity of its orbit increases.
The eccentricity of its orbit increases.
The average speed of the orbiting planet increases.
The average speed of the orbiting planet increases.
The gravitational force between the planet and the Sun increases.
Answers
Answer:
La fuerza gravitacional entre el planeta y el Sol aumenta.
Explanation:
which scenario supports the ""one gene–one enzyme"" hypothesis of metabolic disease causation?
Answers
The scenario that supports the "one gene-one enzyme" hypothesis of metabolic disease causation is Phenylketonuria (PKU). This disease (PKU) is caused by the failure to produce a functional variant of an enzyme.
Phenylketonuria (PKU) is a metabolic inherited disorder associated with a decreased metabolism of the amino acid phenylalanine.
PKU is caused by a mutation in the gene responsible for encoding a key enzyme needed to break down phenylalanine.
Untreated PKU may lead to diverse health problems which include brain damage, intellectual disability, seizures, mental disorders, etc.
Learn more in:
https://brainly.com/question/7157066?referrer=searchResults
why are being flammable and combustible be considered to be chemical properties and not physical properties?
Answers
Answer:
Because combustion is a chemical change and not a physical change. Do, flammable and combustible gases burn and change into new substance.
As opposed to a physical change, combustion is a chemical transformation. Combustible and flammable gases do burn and transform into new substances.
What are considered combustible?Combustible materials are those that, when exposed to fire or heat, will ignite, burn, sustain combustion, or produce flammable gases in the form and circumstances anticipated for their application. Combustible materials include rubber, plastics, rubberized materials, and wood.
Are metals combustible?Depending on the environmental factors, most metals are flammable to varied degrees. With water, acids, and other chemicals, certain metals can react in ways that are hazardous. Some metals can spontaneously ignite and heat up.
To know more about Combustible visit:
https://brainly.com/question/13153771
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ANSWER ASAP
PLeAsE
?????????????
Answers
Answer:
The answer is A.) leaving a copper penny in vinegar until it turns green.
All the other options are physical changes, as you can separate the two mixtures.
I hope this helps you! :)
how much does it cost to fill a 100lb propane tank
Answers
Answer:
$500
Explanation:
G00gle.
is preferable a high percent error or a low percent
error?
Answers
Explanation:
Percent errors tells you how big your errors are when you measure something in an experiment. Smaller percent errors mean that you are close to the accepted or real value. For example, a 1% error means that you got very close to the accepted value, while 45% means that you were quite a long way off from the true value.
Your future is affected by your choices today? I agree or disagree
Answers
Answer:
The choice that we had decided on doing today factors our future because whatever choice we decide on doing in the present day can impact how our life will play out in the future. ... After all, it is your life, so whatever you chose to do, you have the power to decide and create what you think would be best for you
Explanation:
1s22s22p63s23p64s23d104p65s24d105p66s24f145d106p2
Answers
Answer:
batqyqy6w
Explanation:
We may suspend accounts that violate the Brainly Code of Conduct. Look for a follow-up email.
Is chlorine a substance or a mixture
Answers
Answer:
its a substance
Explanation:
the modern model of the atom shows that electrons are:
Answers
Which of the following is the best explanation for the fact that crushing increases the rate at which a solid dissolves in a liquid?
Select one:
a. The temperature of the solution is increased when the solid is crushed.
b. The surface area of the solute is increased when it is crushed.
c. Crushing increases the amount of solute present.
d. Crushing makes stirring the solution easier.
Answers
Using the periodic table, explain which pair of the following gases have the most similar properties and why. Nitrogen (N), Fluorine (F), Neon (Ne), Krypton (Kr), and Oxygen (O).
Answers
why are protons and electrons attracted to each other
Answers
Answer:
Protons have a positive charge. Electrons have a negative charge. The charge on the proton and electron are exactly the same size but opposite. Since opposite charges attract, protons and electrons attract each other.
Explanation:
how to calculate atomic mass of sodium ?(in process)
Answers
Answer:
Atomic mass of Sodium is 22.9897 u. Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. The unit of measure for mass is the atomic mass unit (amu). One atomic mass unit is equal to 1.66 x 10 -24 grams.
Explanation:
Which of the following properties is a chemical property?
Answers
Answer:
flammability, toxicity, acidity, reactivity are some examples.
sorry you left out your options.
Answer:
Where are the options
Explanation:
Can you be a little more specific about your question?
Explain how the fire spreading from tree to tree provides a model for conduction.
The great fire of 1910 burned through parts of north Idaho, western Montana, eastern Washington,and southeastern British Columbia. Many small fires and several large fires that were started by an electric storm coalesced into one”big blowup” of unprecedented size that lasted two days. Hurricane-force winds spread the firestorm; trees became blowtorches, sucking fire from the ground and hurling it in several directions, spreading the fire on contact. Witnesses described fireballs being flung like cannons. Trees exploded like fireworks. The fire killed 87 people, destroyed towns in its path, and burned more than three million acres of forest
Answers
the fire spreading is what represents the form of heat transferring from one atom to another within an object and direct contact
PLSSS HELP MEEE ASAPA!!
Which pair of elements has reactivity that is similar to Fluorine, F?
Answers
Answer:
halogens group 7A on the periodic
table
Which factor of production would water be considered?
A) Land
B)Labor
C) capital
D)entrepreneurship
Answers
Explanation:
land.
I think it is the answer
Answer:
land .......................