Plz help! This question is due in 10 mins!

Calculate the density of a 5cm3 cube of iron with a mass of 100 g

Answers

Answer 1

Answer: 20

Explanation: I’m in your class.


Related Questions

What mass of ethanol will All
a 250.0 ml container if its
density is 0.789 g/ml?

Answers

Answer:

The answer is 197.25 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

volume = 250 mL

density = 0.789 g/ml

So we have

mass = 250 × 0.789

We have the final answer as

197.25 g

Hope this helps you

explain how to balance the chemical equation, KClO3 ⟶ KCl + O2 and include all steps

Answers

The balance of chemical equation : 2KClO₃ ⟶ 2KCl + 3O₂

Further explanation  

Equalization (balance) of chemical reactions can be done using variables. Steps in equalizing the reaction equation:  

1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c, etc.  2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index (subscript) between reactant and product  3. Select the coefficient of the substance with the most complex chemical formula equal to 1  

Reaction

[tex]\tt KClO_3\Rightarrow KCl+O_2[/tex]

1. Coefficient

KClO₃ ⟶ aKCl + bO₂

2. Equation

K ⇒ left =1, right=a ⇒a=1

Cl⇒ left =1, right=a ⇒a=1

O ⇒ left = 3, right = 2b ⇒3=2b, b = 1.5

The equation turns into :

KClO₃ ⟶ KCl + 1.5O₂

multiplied by 2

2KClO₃ ⟶ 2KCl + 3O₂

If a gold bar is 16,000 g mass and 800 cm^3 volume what is the density?

Answers

Answer:

The answer is 20 g/cm³

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass = 16,000 g

volume = 800 cm³

We have

[tex]density = \frac{16000}{800} = \frac{160}{8} \\ [/tex]

We have the final answer as

20 g/cm³

Hope this helps you

Why is Graphite soft

Answers

Answer:

Graphite is soft because it has weak inter molecular forces between its layers.

organize the following elements in order of increasing atomic radius (Ge, He, Sr, O, Ba)

Answers

Answer:

He

O

Ge

Sr

Ba

Explanation:

An atom gets larger as the number of electronic shells increase; therefore the radius of atoms increases as you go down a certain group in the periodic table of elements.

In general, the size of an atom will decrease as you move from left to the right of a certain period.

What happens if an organism cannot carry out its life function?

Answers

Answer:

organisms cannot stay with out getting nutrients as they will not be able to repair them selves or produce energy.

Explanation:

Which of the following is the conjugate acid of H2P04- ?
A. HAP04
O B. PO 3-
O C. HP04-2
O D. H3PO4

Answers

Answer:

phosphoric acid H3PO4

The conjugate acid of H₂PO⁴⁻ is H₃PO₄. Therefore, option D is correct.

A conjugate acid is a species that is formed when a base accepts a proton (H⁺). It is the species that is one proton (H⁺) more acidic than the original base.

The base is the species that can accept a proton (H⁺), and the conjugate acid is the species that is formed when the base accepts the proton. The conjugate acid has one additional proton compared to the base.

Conjugate acids play an important role in acid-base reactions as they are formed when bases accept protons, and they can donate protons in subsequent reactions to regenerate the original base.

Learn more about conjugate acids, here:

https://brainly.com/question/31229565

#SPJ6

If a sample of copper is 215g, how many moles of copper atoms are in the sample?

Answers

Answer:

3.38 moles.

Explanation:

The following data were obtained from the question:

Mass of copper (Cu) = 215 g

Number of mole of copper (Cu) =...?

The number of mole of copper (Cu) in 215 g can be obtained as follow:

Mass of copper (Cu) = 215 g

Molar mass of copper (Cu) = 63.55 g/mol

Number of mole of copper (Cu) =...?

Mole = mass /Molar mass

Mole of Cu = 215/63.55

Mole of Cu = 3.38 moles

Therefore, 3.38 moles of copper (Cu) is present in the sample.

What all indicates a CHEMICAL change? *
A Solid melting into a liquid
After the change the substance is still reactive with oxygen
One substance becomes two new substances
The melting point was 100 deg C but after the change the melting point was 256 deg
C.

Answers

one substance becomes two new substances

I
ER
FLINE JE PELENE BI
OSE ELETTES
SELFS EEE
BER
LE
0

Answers

ososlwkwkwlwkemmwmwmwwmkwkwmw

Answer:

WOWKFBBAI9AIEHEBFKCOAKQQ

Please answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!!!!!!

Answers

Answer: uuhhhh pass

Explanation:

Answer:

It should be 0.8mL.

Explanation: Because you would subtract what the rock would be without the water.

[tex]5.6-4.8=0.8[/tex]  Simple C:

Find the percent of oxygen in CaClO3)2 Show your work

Answers

So in calcium chlorate, there is one calcium, 2 chlorines, and 6 oxygens. To find the percent of oxygen in the compound, find the weight of the oxygen and divide it by the total weight of the compound:

weight of oxygen (95.94g/mol) / weight of entire compound (206.98g/mol)
= 0.4635

Finally, to convert this to a percentage you multiply it by 100

0.4635 x 100 = 46.35% Oxygen by mass

What element is the only Noble Gas in the s-block?

Answers

Answer:

Helium

Explanation:

Answer:

helium i guess i m not sure

The kinetic energy of a moving object depends on its mass and its
a. volume.
b. velocity.
c. distance.
d. acceleration.

Answers

I think the answer is a, volume, but I still might be wrong.
It’s the volume of the object

The maximum amount of statie friction between this chair
and the floor is 175 N.
Which action would cause the chair to move to the left?
A. Applying 100 N of force to the chair from the left
B. Applying 200 N of force to the chair from the left
O c. Applying 200 N of force to the chair from the right
O D. Applying 100 N of force to the chair from the right

Answers

In order to overcome static friction, a force greater than 175 N would need to be applied to the chair, so we can eliminate A and D. Since you want to move the chair to the left, you’d have to push from the right, so the correct answer is
C) applying 200 N of force to the chair from the right

Answer:

C

Explanation:

A p ex

Which can change from one state of matter to another at the temperatures and pressures experienced at Earth’s surface?
oxygen

carbon dioxide

water

nitrogen

Answers

The answer is for that will be Water

1 point
Nitrogen has three occurring isotopes: Nitrogen-13, Nitrogen-14, Nitrogen-15. Which isotope is the most abundant?

Answers

Explanation:

Nitrogen-14 is the most abundant isotopes of Nitrogen.

K+ Cl2 → КСІ balance equation​

Answers

Answer: 2K + Cl2 —> 2KCl

The rows in the periodic table are called periods.
What is true about elements in the same period?

Answers

Answer:

elements in the same period have the same number of shells

the period number the element is in, that is the number of shells it has.

A star's mass determines the —
A) shape of a Star
B) location of a star
C) length of its lifecycle
D) galaxy it belongs to

Answers

It’s either A or C sorry I can’t help more

What volume of silver metal will weigh exactly 2500g. The density of silver is 10,5 g/cubic centimeters.

Answers

Answer:

26250 cubic centimeters

Explanation:

Compounds are created when atoms of different elements _____.

1.form chemical bonds
2.have different chemical properties
3.form physical bonds
4.have similar chemical properties

Answers

Answer:

1.form chemical bonds

What is the frequency of an event?
Group of answer choices

Probability

Degree

Expected occurrence

Identification

Answers

the answer is probability!

hope this helps :)

Answer:

Probability

Explanation:

If a football is 625 mL volume and 0.64 g/mL density what is the mass

Answers

the mass is 400

explanation

the formula for density is density equals mass divided by volume so you plug in .64 for the density and 625 for the volume. .64= m/625. to solve for mass you would multiply both sides by 625 to get the mass

the number of protons will tell you what elements it is. T or F plzz help​

Answers

Answer:

True

Explanation:

There are two ways to tell elements apart from each other: the atomic number or the number of protons. The atomic number tells the number of protons in the element.

For example:

There are two given elements. One has 3 protons and an atomic number of 3 while the other has 7 protons and an atomic number of 7. Which one is Lithium?

Lithium has an atomic number of 3, which means it has three protons, which means Lithium is the one with 3 protons.

how long will take an object traveling at 25 m/s to reach a distance of 125 meters? ​

Answers

Answer:

5s

Explanation:

Egg + Heat

Proof of a Chemical Reaction

Answers

Answer:

Water+Heat

proof of physical reaction

Explanation:

Chemical reactions are reactions that can't be undone ex cooking and egg.

Physical reactions are reactions that can be undone ex boiling water.

Answer:

Egg + Heat = Chemical Change

Explanation:

This is a chemical change because it cannot be undone. Once it changed its form you could not revert it back to its original self.

I hope this helps you! :)))))

3. compounds in which elements are held together by covalent bonds...keeps their own properties
A polar molecule
B. element
C. compound
D. molecule

Answers

The anserr is c that what i think

Which of the following is NOT a characteristic of a compound?
A. has different properties from the elements that formed it
B. pure substance made of two or more elements
C. can be represented by a chemical formula
D. different samples have different properties

Answers

Answer:

I think it's D

sorry if I'm wrong.

Explanation:

Options that are not characteristics of compound in the question is D. different samples have different properties.

A compound can be regarded as a substance which is formed by chemical  combination of two or more elements.Examples of compound are water ( H2O), Sodium chloride ( NaCl)

Some of the properties of a compound are;

A compound will always has a different properties which is different from the properties of each of the elements making up the compound.A compound are formed as a result of  two or more elements that combined chemically.A compound can be identified with its chemical formula.

Therefore, option D is correct because a compound will only has its own properties not that

Learn more at : https://brainly.com/question/13516179?referrer=searchResults

Why were enslaved Africans in high demand in the southern colonies?

Answers

Answer:

Slaves were in high demand in the southern colonies because they were the main source of labor. ... Bacon and others colonists wanted to take the Natives land.

Explanation:

HOPE THIS HELPED ❤✨

Slaves were in high demand because they were the main source of labor meaning they would do all of their owners work and without the slaves it was hard for them to keep up with their house, farm, work etc
Other Questions
What role did Congress have in influencing the 1876 presidential election? A. They vetoed the Democratic nominee during the election B. Congress would reinforce Reconstruction plans against the South C. They made a deal to vote for Hayes and help rebuild the South D. Congress would falsify who won the popular vote , glucose is converted into what three products? science List the steps for developing a model. Which of the following represents two molecules of carbon dioxide?C 2O 2CO 22C 2O 22CO 2 Ultrasound is used for pre nature scanning. This is much safer than using x rays. However doctors were only sure it was safe after experiments on mice. Explain whether or not you think that these experiments were justified Everyone is at the school store looking for the supplies they need. Tell which supplies they need byadding the appropriate form of the verb necesitar, followed by the name of the object in the pictureFollow the model. Complete the verb chart before you start. Give three reasons why social media is bad Select all of the nets that can be folded and assembled into a triangular prism like this one. helpppp meeeeeeeeeee Rotations are usually how many degrees? The middle class in ancient Egyptian society was made up of ____________. A.peasantsB.slavesC.skilled workersD.nobles and priestsPlease select the best answer from the choices providedABCD which of the following determines the identity of an element? a. atomic numberb. mass number c. atomic mass d. overall change 1)How can we teach our daughters to protect herself?2) what can society do better to reduce the incidents of violence against women? Please, help, this is for my best friend! I will mark Brainliest. 8. Calculate the length of r or st 4. Changer =to an equiv-1 + 2 sin ealent rectangular equation. - 9/14 over 2/7 in simplest form step by step Right 20 7 and 500/22000 in decimal form Our Sun is a sphere of plasma held together by _______. Plzz answer fastt!!! When did most of the Eastern European gain their independence from the Soviet Union?1980197020001990