If a sample of iron with a density of 7.80 g/cm3 displaces 75.0 mL of water when placed in a beaker, what is its mass?

Answers

Answer 1

Answer: 1 mL = 1 cm³

75.0 mL = 75.0 cm³

Density = mass / volume

7.80 = mass / 75.0

mass = 7.80 x 75.0

mass = 585 g

hope this helps!

Answer 2

Answer:

If a sample of iron with a density of 7.80 g/cm^3 displaces 75.0 mL of water when placed in a beaker, its mass is 585 g.

Related Questions

What is the volume occupied by 0.108 mol of helium gas at a pressure of 0.909 atm and a temperature of 306 K ? Express your answer using three significant figures. Would the volume be different if the gas was argon (under the same conditions)? The volume would be the lower for argon gas. The volume would be the same for argon gas. The volume would be the greater for argon gas.
Define the acid rain for class 10 .???
What happens at a hot spot?
Are all metals acidic in nature and all non-metals basic? and what is the nature of their oxides?
What is the total number of moles of hydrogen atoms contained in 1 mole of (nh42c2o4?

Helen is standing in the hallway with her friend Janet, next to Helen's locker. Each girl has a body mass of 48 kilograms (kg), and thus each exerts a force of 470.4 Newtons (N) on the hall floor. What is the total force, in Newtons (N), that the hall floor exerts on the pair of girls?A. 940.8 N
B. 96 N
C. 960.4 N
D. 48 N

Answers

The right answer for the question that is being asked and shown above is that: "A. 940.8 N." Helen is standing in the hallway with her friend Janet, next to Helen's locker. Each girl has a body mass of 48 kilograms (kg), and thus each exerts a force of 470.4 Newtons (N) on the hall floor.

What is the name of the ionic compound that contains a NA+ ion for every Cl- ion

Answers

The name is sodium chloride. This is an ionic compound so you use the ionic naming system which is the name of the cation followed by the name of the anion. I hope this helps. Let me know if anything is unclear.

Chlorine melts at 172 k what is chlorines melting point in C

Answers

<HTML><META HTTP-EQUIV="content-type" CONTENT="text/html;charset=utf-8"> K = 273.15 + C K = 172 so substitute 172 = 273.15 + C C = 172 - 273.15 = -101.15 </DIV>

For each molecule, what should be determined? A) Number of pi bonds and if they are delocalized. B) Number of sigma bonds and if they are localized. C) Number of hydrogen bonds and if they are polarized. D) Number of covalent bonds and if they are ionic.

Answers

Answer:

Explanation:

A) Number of pi bonds and if they are delocalized:

Determine the number of pi (π) bonds in the molecule. Pi bonds are formed by the overlap of p-orbitals in a double or triple bond.

Assess whether these pi bonds are delocalized. Delocalization occurs when electrons in pi bonds are not localized between just two atoms but are spread out over multiple atoms or regions within the molecule. This typically involves resonance structures in organic chemistry.

B) Number of sigma bonds and if they are localized:

Determine the number of sigma (σ) bonds in the molecule. Sigma bonds are formed by the head-on overlap of atomic orbitals in single bonds.

Assess whether these sigma bonds are localized. In most cases, sigma bonds are localized between two specific atoms, meaning they involve a direct bond between those atoms.

C) Number of hydrogen bonds and if they are polarized:

Determine the number of hydrogen bonds in the molecule. Hydrogen bonds are a special type of dipole-dipole interaction involving hydrogen atoms bonded to highly electronegative atoms (such as oxygen, nitrogen, or fluorine) and other electronegative atoms.

Assess whether these hydrogen bonds are polarized. Hydrogen bonds involve a difference in electronegativity between the hydrogen atom and the electronegative atom, creating a polar bond. The extent of polarization can vary depending on the specific atoms involved.

D) Number of covalent bonds and if they are ionic:

Determine the number of covalent bonds in the molecule. Covalent bonds involve the sharing of electrons between atoms.

Assess whether these covalent bonds are ionic. Covalent bonds are typically characterized by the sharing of electrons, while ionic bonds involve the complete transfer of electrons from one atom to another, resulting in ions. Covalent bonds are typically nonpolar or polar, while ionic bonds are highly polar.

If 2a=3b and a=6 then b=

Answers

then b is 4

2a=3b since a=6

2x6=3b

12=3b

b=12/3

b=4

Answer:

b=4

Explanation:

2a=3b

2a=2*6

2*6=12

2a=12

12=3b

12/3=4

b=4

Why does the forward reaction slow down over time

Answers

As reactions proceed, they will approach equilibrium, meaning they are completely balanced. As this occurs, there will be fewer products to react. Eventually, after all products are reacted, the reaction will completely stop. Since this doesn't happen instantaneously (usually), the reaction will start quickly and slow as time progresses. hope this helps you hope i am brainliest i need it

The reaction does not stop at equilibrium. Equilibrium is the point at which the rate of the forward reaction equals the rate of the reverse reaction which makes it so that there is no net change (that means that it looks like the reaction has stopped but the forward and reverse reaction is still happening).

The forward reaction slows down over time due to the fact that the concentrations of reactants gets lower over time which makes it so that there are less collisions between reactants per unit of time. Since reactions occur when the reactants collide in the right way, when the number of collisions lowers, the rate of the reaction will also lower. This can be seen through the fact that rate of the forward reaction is rate=k[reactants]. As [reactants] gets lower, the rate of the forward reaction will get lower as well. (rate=k[reactants] is the rate law for the forward reaction with [reactants] being the concentration of reactants and k being the rate constant).

I hope this helps. Let me know if anything is unclear.

Other Questions

An unstable nucleus loses the most mass if the nucleus emits(1) an alpha particle (3) a positron (2) a beta particle (4) a gamma ray

How many grams of CaCl₂ should be dissolved in 500.0 mL of water to make a 0.20M solution of CaCl₂?

How much energy does the sun give off?

The bonds in BaO are best described ascovalent, because valence electrons are sharedcovalent, because valence electrons are transferredionic, because valence electrons are sharedionic, because valence electrons are transferred