What is the density of a solid that has a mass of 100g and a volume of 25mL.?

Answers

Answer 1

Answer:

D = 4 g/mL

General Formulas and Concepts:

Density = Mass over Volume

D = m/V

Explanation:

Step 1: Define

m = 100 g

V = 25 mL

D = unknown

Step 2: Find D

Substitute:               D = 100 g/25 mLEvaluate:                  D = 4 g/mL

Related Questions

When you connect your evidence to your claim you are using your

1. brain
2.reasoning
3. test

Answers

Answer:

2. reasoning

Explanation:

PLS GIVE BRAINLIEST

how does sodium become an ion

Answers

Answer:

Sodium is an alkali metal so it needs to lose an electron to fill it's outer shell.

That is an ion. When an element loses or gains an electron but in this case, sodium needs to lose an electron.

please help! An ice cube (25 g) is removed from a freezer at 0 °C. How much energy is required to completely melt the ice cube?

Answers

Answer:

So it takes 80 calories of heat to melt 1 g of an ice cube, now do the math. (Hope this helped)

Explanation:

DESPERATE WILL GIVE BRAILIST AND THANKXS
Which statement is true about a rock layer deposited on top of another rock layer?
A- It is younger than the rock layer below.
B- It is older than the rock layer below.
C- It is the same age as the rock layer below.
D- It is no different than the rock layer below

Answers

Hello there!

Your answer is C.

Answer:

The right option is; A. It is younger than the rock layer below.

Explanation:

A rock layer deposited on top of another rock layer is younger than the rock layer below. This is based on the law of superposition which states that in any undeformed sequence of rocks that are laid down in layers, the youngest layer of rock will be on top of the sequence, while the oldest layer will be at the bottom of the sequence.

PLEASE HELP I'M DOING THIS IN CLASS RIGHT NOW
Explain exactly why metals are such good conductors according to the video you just watched. 2. Which conducts heat more efficiently- a solid, liquid or gas? Why is that (explain on molecular level)?

Answers

Answer:

hope this helps have a amazing day! :)

Explanation:

Metals are an excellent conductor of electricity and heat because the atoms in the metals form a matrix through which outer electrons can move freely. Instead of orbiting their respective atoms, they form a sea of electrons that surround the positive nuclei of the interacting metal ions.

What coefficient well O2 have after balancing this equation

C4H8 + O2 -> CO2 + H2O

A. 4

B. 8

C. 6

D. 2.5

Answers

coefficient of O2 will be 6

The coefficient for O₂ after balancing the equation is 4. The correct answer is A. 4.

To balance the equation C₄H₈ + O₂ → 4CO₂ + 4H₂O, we need to ensure that the number of each type of atom is the same on both sides of the equation.

Starting with carbon (C), we have 4 carbon atoms on the left side and only 1 on the right side (in CO₂). To balance carbon, we place a coefficient of 4 in front of CO₂:

C₄H₈ + O₂ → 4CO₂ + H₂O

Next, we move on to hydrogen (H). There are 8 hydrogen atoms on the left side, but only 2 on the right side (in H₂O). To balance hydrogen, we place a coefficient of 4 in front of H₂O:

C₄H₈ + O₂ → 4CO₂ + 4H₂O

Now, let's consider oxygen (O). On the left side, we have O₂, which contains 2 oxygen atoms. On the right side, there are 4 CO₂ molecules, each containing 2 oxygen atoms, and 4 H₂O molecules, each containing 1 oxygen atom. So, the total number of oxygen atoms on the right side is (4 x 2) + (4 x 1) = 8.

To balance oxygen, we need to have 8 oxygen atoms on the left side as well. Therefore, we place a coefficient of 4 in front of O₂:

C₄H₈ + 4O₂ → 4CO₂ + 4H₂O

Therefore, the coefficient for O₂ after balancing the equation is 4.

The correct answer is A. 4.

Learn more about coefficient from the link given below.

https://brainly.com/question/13431100

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How many mL of ethanol would you
add to water to make 1750 mL of a
40.0% ethanol solution (v/v%)?

Answers

Answer:

700 mL of ethanol would be added

Explanation:

Given data:

Volume of ethanol added to make 40% v/v solution = ?

Total volume of solution = 1750 mL

Solution:

We will calculate the 40% 1750 mL which will be the volume of ethanol added to the water to make 40%v/v solution.

(40/100)× 1750 mL

0.4 × 1750 mL

700 mL

700 mL of ethanol would be added.

7. Which of the following is always true when a substance undergoes a
phase change? *
O A. The molecules keep moving at the same average speed.
B. The substance becomes a liquid as it heats up.
C. The melting point of the substance changes.
D. The substance is made up of the same type of molecules.

Answers

The following answered has been deleted due to multiple violations to our Terms of Service.

Calculate the percent composition of chlorine in methyl trichloride, CHCl3.

Answers

Answer:

Chlorine --> 89%

Explanation:

Step 1) Add each element's amu up to get the total mass of the compound.

12.011+1.008+3(35.453) = 119.378.

Step 2) Divide the total mass of chlorine by the total mass of the compound.

3(35.453) = 106.359

106.359/119.378 = 0.8909430548.

Step 3) Now multiply by 100 to get the percentage.

0.8909430548*100 = 89.09430548%

Step 4) Estimate and submit your answer

89.09430548% estimates to 89%

Question 107 points)
(02.04 HC
Use examples to explain how the atmosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete
sentences. (7 points)

Answers

Answer:

Evaporation from the hydrosphere provides the medium for cloud and rain formation in the atmosphere. The atmosphere brings back rainwater to the hydrosphere. The atmosphere provides the geosphere with heat and energy needed for rock breakdown and erosion. The geosphere, in turn, reflects the sun's energy back into the atmosphere.

Explanation:

Which of the following are subatomic particles that orbit the outside of an atom?
A.
molecules
B.
electrons
C.
neutrons
D.
protons

Answers

The Electrons

Electrons are negatively charged particles that orbit the nucleus of an atom.

A natural resource that is replaceable through a cycle in nature or sustainable practice is called a ______________.

Answers

Answer:

renewable recource.

Explanation:

How many moles of acetaminophen are in a 0.8mL (0.0008L) dose of infants Tylenol

Answers

Answer:

0.007 mol

Explanation:

Step 1: Given data

Volume of acetaminophen: 0.8 mL

Step 2: Calculate the mass corresponding to 0.8 mL of acetaminophen

The density of acetaminophen is 1.26 g/mL.

0.8 mL × (1.26 g/mL) = 1 g

Step 3: Calculate the number of moles corresponding to 1 g of acetaminophen

The molar mass of acetaminophen is 151.16 g/mol.

1 g × (1 mol/151.16 g) = 0.007 mol

PLEASE HELPP!!!!
10. Using a Periodic Table, complete the chart below. Then, use the simulation to check your
answers by clicking on the appropriate elements to make each compound.

Answers

Answer:

Na the valency electrons is 1

The ion charge is positive 1

K the valency electrons is 1

The ion charge is positive 1

Explanation:

Mg the valency electron is 2 The ion charge is positive 2

Ca the valency electron is 2 The ion charge is positive 2

Al the valency electron is 3 The ion charge is positive 3

O the valency electron is 2 The ion charge

is negative 2

F the valency electron is 1 The ion charge is negative 1

Cl the valency electron is 1 The ion charge

is negative 1

N the valency electron is 3 The ion charge is negative 3

S the valency electron is 2 The ion charge is

negative 2

Na the valency electrons is 1, The ion charge is positive 1 and K the valency electrons is 1, The ion charge is positive 1.

What is Valency?

Mg the valency electron is 2 The ion charge is positive 2, Ca the valency electron is 2 The ion charge is positive 2 and Al the valency electron is 3 The ion charge is positive 3.

O the valency electron is 2 The ion charge, is negative 2 and F the valency electron is 1 The ion charge is negative 1, Cl the valency electron is 1 The ion charge is negative 1

N the valency electron is 3 The ion charge is negative 3, S the valency electron is 2 The ion charge is negative 2.

Therefore, Na the valency electrons is 1, The ion charge is positive 1 and K the valency electrons is 1, The ion charge is positive 1.

To learn more about valency, refer to the link:

https://brainly.com/question/12744547

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.) 1. The Lewis valence dot electron structures are used to illustrate the number of valence electrons of atoms of representative elements. Considering this, use the Periodic Table to predict the number of "dots" that should be drawn around Antimony (Sb) to represent its Lewis Dot Structure.​

Answers

Answer:

put 5 dots

Explanation:

it has 5 valence electrons

Answer:

5

Explanation:

Antimony is in group 15 of the periodic table which means it has 5 valence electrons. Therefore, its Lewis Diagram should contain 5 dots to represent these 5 valence electrons.

Hope this helped!

Pls help will give Brainlist
If a sealed 3.0L container has a pressure of 1.0 atm at 20.0 C and is heated to a temperature of 450. K. What is the pressure inside of the container at this temperature?

Answers

The pressure : 1.536 atm

Further explanation

Same container=same volume⇒the volume is constant

Gay Lussac's Law  

When the volume is not changed, the gas pressure in the tube is proportional to its absolute temperature  

[tex]\tt \dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}[/tex]

P₁=1 atm

T₁=20+273=293 K

T₂=450 K

the pressure :

[tex]\tt P_2=\dfrac{P_1.T_2}{T_1}\\\\P_2=\dfrac{1\times 450}{293}=\boxed{\bold{1.536~atm}}[/tex]

A train travels 846 miles in 9 hours. What is the average speed of the train?

Answers

Answer:

The answer is 94 miles an hour.

Explanation:

Speed equals distance divided by the time taken to cover that distance. So to find the average speed of the train just divide the distance covered (846 miles) by the time taken by the train to cover that distance (9 hours) and that equals 846/9 equals 94 miles in one hour.

What does unsaturated zone mean?

Answers

The unsaturated zone is the portion of the subsurface above the groundwater table. The soil and rock in this zone contains air as well as water in its pores. ... Unlike the aquifers of the saturated zone below, the unsaturated zone is not a source of readily available water for human consumption
the unsaturated zone is the area above the water table that carries no water

Which of the following elements would you expect to be ductile and
malleable?
Germanium (Ge)
Argon (Ar)
O O O O
Nitrogen (N)
O Zirconium (Zr)

Answers

Answer:

ductile - germanium

mellabe - zirconium

What is the smallest substance? molecule mixture compound

Answers

the smallest substance is molecule substance and we don’t know . that is the answer to ur question, hope this helps

Answer:

Molecule is the smallest i took the quiz and it was that!

Explanation:

Hope I helped! :>

You have a 155-g sample of Al2O3. If there are 22.5 g of Al in the solution, what is the percent by mass of the solute? Use details to support your answer.

Answers

Answer:

14.52%

Explanation:

The percentage by mass (WW%) is calculated by using the formula:

Mass of solute/mass of solution ×

100

The solute (Al) is 22.5g while the solvent (Al2O3) is 155g

Hence, percent by mass is:

22.5/155 × 100

= 0.1452 × 100

= 14.52%

When two balls collide, the momentum of the balls after the collision is explained by?

Answers

Answer:

(m1+m2)v

Explanation:

where m1 is the mass of the first body

m2 is the mass of the second body

v is the velocity

In each case, state whether the forces are balanced or unbalanced. If unbalanced, calculate the net force and describe the direction of the resultant force.

Answers

Answer:

Check explanation section.

Explanation:

In order to understand balanced force and unbalanced forces the first law of Newton should be considered as a basic knowledge.

For Balanced forces, there is equal equality in the direction of the forces. In balanced forces, there is no acceleration.

For unbalanced forces, there is acceleration that is go say there is going to be movement. Therefore, net force is equal to unbalanced forces.

(i) Suitcase dropped from a height.

Answer: since there is movement that is acceleration, then the force here is unbalanced force. The resultant force is downwards.towards the greater force direction.

(ii) A bicycle moving with constant velocity on a straight road.

Answer: As the bicycle moves at constant velocity on the straight road the force here is Balanced. Frictional forces balances the forces from the cyclist.

(iii) The rope does not move in a tug of war on applying force at both ends.

Answer: Balanced force.

Differentiate between physical and chemical change​

Answers

Explanation:

Physical Change is a type of change where by no new chemical substance is formed. Physical changes are reversible. whilst Chemical change is a change where new chemical substance is always formed. Chemical changes are usually irreversible.

Examples of Physical Change include;

Melting of Ice

Melting of Candle

Grinding of chalk

Magnetization of Iron

Examples of Chemical Change includes;

Cooking of food

Rusting of Iron

Burning of Charcoal

Pls help: What is the net equation for CNO cycle?

Answers

Answer:

The CNO cycle (for carbon–nitrogen–oxygen) is one of the two known sets of fusion reactions by which stars convert hydrogen to helium, the other being the proton–proton chain reaction (pp-chain reaction). Unlike the latter, the CNO cycle is a catalytic cycle.

Calculate the wavelength of microwaves that have a frequency of 5.67 x 10¹¹ Hz. Please give your answer in scientific notation to the hundredths place. (Don't forget unit!) *

Answers

100000000000 times 5.67 is 567000000000

Write the type of each chemical reaction


Answers

1. Double Displacement

2.Double Displacement

3. Single Displacement

4.  Decomposition

5. Synthesis

6. Combustion

Which of the following is not an example of biased language?
a.
“You are too short to reach that.”
b.
“Are you deaf?”
c.
“Move along, grandpa!”
d.
“I think I’ve been gypped.”

Answers

Answer:

I think it is D.

Explanation:

Answer:

b

Explanation:

can you help please??

Answers

Answer:

no

Explanation:

Answer:

The answer is B

why water can be consider as an acid as well as base .explain briefly​

Answers

It depends on the pH level of the water.
Its neither because water is actually neutral since it has a Ph of 7
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Divide (-3x^2 - 9x) (x + 3) please explain/show work! How would I copy this image?There is an image from a scientific research pdf that I would like to use for one of my research papers in school, but I am unable to find out how to copy it and then paste it into my paper.Thank you for your hep what is 2 over 5 simplafied Write an equivalent addition expression to : -10 (-4) Evaluate: 21x: 8 when x = 4* riddleWhat runs around the whole yard without moving? Which of the following mixtures will have a stronger coffee flavor? explain please thank you!!A) Mixture BB) Mixture AC) Both the mixtures are equally strong. .) 1. The Lewis valence dot electron structures are used to illustrate the number of valence electrons of atoms of representative elements. Considering this, use the Periodic Table to predict the number of "dots" that should be drawn around Antimony (Sb) to represent its Lewis Dot Structure. Which expression is equivalent to (4-3)?A. -2(to the power of 2) + 3B. -2(to the power of 2) 3C. -3 - 2(to the power of 2)D. -3 +2(to the power of 2) who is the intended audience for this story ? ( children, teen or adult ? ) what evidence helps identify the audience? ( options seen in picture ) Patterns can be described asA. Random shapesB. An exact repetition of elementsC. Disorganized lines What does unsaturated zone mean? Help pls help pls help pls help pls help pls 1. I thought I was prepare for what our family would expect on the wide-open planes of the frontier. I was wrong.2. The letter from Father's brother arrived at our home in Philadelphia on May 1, 1867, coincidentally the Day Nebraska became the 37th state in the Union. Uncle Matthews have been searching for land in Nebraska for 2 years and have secured a land for our family, if we want it. Was father interested?3. Of course he was interested! Ever since my uncle and his family mood West, it's been all father could talk aboutthe adventures, the awards of being reaped from working on the land, the freedom, the wide open space. Mother was not so sure about living on the prairie, but she had hitched her dreams to Father's long ago. So it was when we set off with everything we owned tied down to a solitary wagon covered with a large white canvas cloth.4. weeks later we stood with Uncle Matthew by a small stream on our new landanchors and anchors of earth blanket with the tall prairie grass. "The first chore," he said "is to build a house." But there was almost no stone to use for construction. The the few trees within sight were not suitable for lumber, Andy clay needed for bricks and scarce.5. "What kind of house?" I posed out loud.6. He chuckles ruffling my hair. "A soddie." 7 So a sod house it would be. I was set to cut the long grass short with help of scythe scythe swing back and forth over the land. 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