The volume of an unknown liquid is shown in the graduated cylinder. The mass of the liquid is 105 grams.

What is the density of the unknown liquid?

A 3500 g/mL
B .33 g/mL
C 3.0 g/mL
D 3.3 g/mL

The Volume Of An Unknown Liquid Is Shown In The Graduated Cylinder. The Mass Of The Liquid Is 105 Grams.What

Answers

Answer 1
The answer I got is C. 3.0 g/mL .
Answer 2

Answer:

the answer is c

Explanation:


Related Questions

Which one of the following is the symbol used in a chemical equation for a
gas?
A. (g)
B. (aq)
C. (gas)
D. (a)

Answers

Answer:

A. (g)

Explanation:

Since it asks for a gas, it is A.

Answer:

A (g)

Explanation:

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 100 N of force to the chair from the right
C. Applying 200 N of force to the chair from the right
D. Applying 200 N of force to the chair from the left
SUBMIT
PREVIOUS

Answers

the answer should be c
i’m not for sure but i hope this helps!
In order to overcome static friction, a force greater than 175 N would have to be applied to the chair, leaving only C and D as possible options. Since you want to move the chair to the left, you’d have to push from the right so the answer is
C) applying 200 N of force to the chair from the right

Find the mass of an object that has a density of 1.5g/cm^3 and has a volume of 8cm^3 power

Answers

Answer:

The answer is 12 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 = 8 cm³

density = 1.5 g/cm³

We have

mass = 8 × 1.5

We have the final answer as

12 g

Hope this helps you

The unknown element (Johnsonium, Jo) contains three naturally occurring isotopes. The relative abundances and atomic mass are:
Moorium-36: abundance = 1.32%, mass = 35.978amu
Moorium-38: abundance = 3.25%, mass = 37.963amu
Moorium-40: abundance = 95.43%, mass = 39.962amu
What is the average atomic mass of "Moorium?"

Answers

Answer:

Average atomic mass of moorium is 39.844 amu.

Explanation:

Given data:

Atomic mass of moorium-36 = 35.978 amu

Relative abundance of  moorium-36 = 1.32%

Atomic mass of moorium-38 = 37.963 amu

Relative abundance of  moorium-38 = 3.25%

Atomic mass of moorium-40 = 39.962 amu

Relative abundance of  moorium-38 = 95.43%

Solution:

Average atomic mass moorium = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)+ (abundance of 3rd isotope × its atomic mass)  / 100

Average atomic mass of moorium = (1.32×35.978)+(3.25×37.963)+(95.43×39.962) /100

Average atomic mass of moorium =  47.491 + 123.380 +3813.574  / 100

Average atomic mass of moorium = 3984.445 / 100

Average atomic mass of moorium = 39.844 amu

what are Atoms?
what do they do?

Answers

Answer:

atoms are small particles that make up everything even living things and non living things

Explanation:

Which contribution is a modification to Thomson's plum pudding model?

Atoms are indivisible.
Electrons are scattered in an atom.
A positively charged nucleus sits at the center of an atom.
Atoms of the same element have the same properties.

Answers

Answer:

Option C: A positively charged nucleus sits at the center of an atom.

Explanation:

Thompson’s plum pudding model was a model proposed by Thompson to show that an atom consisted of more than one fundamental unit.

In Thompson's model, he suggested that the atom consisted of a cloud of positive charges which were surrounded by electrons which are negative charges distributed throughout.

Now, Thompson's experiment was later rejected by Ernest Rutherford when he carried out the gold foil experiment and came to the conclusion where he proposed a model that the atom consisted of mainly empty space and that all its positive charge are concentrated at its center and further surrounded by a cloud of electrons.

From the given options, the correct one is Option C.

Answer: Option C: A positively charged nucleus sits at the center of an atom.

Explanation:

how many molecules are in CO²​

Answers

Answer:

53.11× 10²³ molecules

Explanation:

Given data:

Number of molecules of CO₂ = ?

Mass of CO₂ = 388.1 g

Solution:

Formula:

Number of moles = mass/ molar mass

Molar mass of CO₂ = 12× 1 + 16×2

Molar mass of CO₂ = 44 g/mol

Now we will put the values in formula.

Number of moles = 388.1 g/ 44 g/mol

Number of moles = 8.82 moles

Now we will calculate the number of molecules by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ molecules

8.82 mol × 6.022 × 10²³ molecules / 1 mol

53.11× 10²³ molecules

Brainliest plz?

Answer:

Now times by Abogadros constant: 1* 6.022*10^23=6.022*10^23 molecules of CO2 are present.

Explanation:

We know the molar mass of CO2(g) is 44.01⋅g⋅mol−1 . And so Avogadro's number of carbon dioxide molecules have this mass... And we take the product of the quotient... Molecules of carbon dioxide=5.00⋅mol×6.022×1023⋅mol−1≅30×1023⋅carbon dioxide molecules.

5. What is a hypothesis and how is it used?

Answers

Answer: a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

A hypothesis is used in an experiment to define the relationship between two variables. The purpose of a hypothesis is to find the answer to a question. A formalized hypothesis will force us to think about what results we should look for in an experiment. The first variable is called the independent variable

i hopes this helps :)

hello~i will really appreciate it if you answer all this♡


1.How many valence electrons do noble gases like Ne,Ar and Kr have?

a.1.
b.2
c.6
d.7

2.The following describe ionic bonding,EXCEPT____.

a.It involves the transfer of electrons.

b.It involves sharing of electrons.

c.atoms either gain or lose electrons.

d.It is a bond between a metal and a non-metal.

3.Which of the following pairs of atoms is most likely to form a covalent compound?

a.C,O
b.Na,O
c.Mg,Br
d.Ba,CI

4.Which of the following is a metal?

a.O
b.S
c.K
d.C

5.Which is not a type of a chemical bonding?

a. Polar bonding
b.Metallic bonding
c.ionic bonding
d.covalent

||. A. Use Lewis structures to show . the transfer of electrons in the given combinations.

1.K +Br
2.Ba + I
3.Be + O
4.Na + S
5.AI + F

B.What ionic charge will the following elements have?PLEASE JUSTIFY YOUR ANSWER.

1. Group 2A
2. Group 5A
3.Group 6A

C.Predict whether the bonding in the oxides of the following elements is covalent or ionic.EXPLAIN YOUR ANSWER.

1.Aluminum
2.Magnesium
3.Phosphorus
4.silicon
5.sodium

|||. Write the electron configuration of the following elements.

1. Ti
2. V
3. Se
4. Ag
5. Zr

thank you!
to your hardwork★

Answers

Explanation:

1)Noble gases have stable valence electron of 2 and 8.

2)B- ionic compounds do not require sharing of electron.

3)B- sodium and oxygen will likely form a covalent compound.

4) C- potassium

5) A- polar bonding

6)

can anybody help me? ill mark brainliest!!! please ITS TIMED

Answers

Density = Mass/Volume but it can also be rearranged to:

Mass = Volume x Density

Given in the question:

Volume - 44.9 cc

Density - 19.3 g/cc

Calculation

Mass = Volume x Density

= 44.9 x 19.3

= 866.57 g

Formula for all possible isomers of hexane​

Answers

Answer:

1) n-Hexane. 2) 2-Methyl pentane(IUPAC name) or Isohexane(common name). 3) 2,2-Dimethylbutane(IUPAC name) or Neohexane(common name). 4) 3-Methylpentane

Explanation:

Calculate the entropy change when 4.31 g of H2 reacts with O2 according to the reaction

2 H2(g) + O2(g) → 2 H2O(l)

at 298 K and 1 atm pressure. The standard molar enthalpy of formation of H2O(l) at 298 K is −285.8 kJ/mol. The corresponding free energy of formation is −237.2 kJ/mol.

Answer in units of J/K.

Answers

Answer:

Explanation:

ΔG  =  Δ H - T ΔS

Given , ΔG = -237.2 kJ / mol

Δ H = - 285.8 kJ / mol

T = 298

Putting the values in the equation

-237.2 = - 285.8 - 298 x ΔS

ΔS  = .163 kJ / mole K

moles of water formed = 4.31 / 2 = 2.155

entropy change required = 2.155 x .163 kJ / K

= 351.26 J / K .

BE FIRST TO ANSWER FOR SUM GOOD!!!!!:D

Answers

Answer is B can you like btw??

If an unknown sample contains 39.04% sulfuric acid by mass, then a 0.9368 g of that sample would require _____ mL of 0.2389 M NaOH for neutralization.
A) 31.22
B) 39.98
C) 7.80
D) 79.96
E) 15.61

Please give an answer and an explanation, thanks!

Answers

Answer:

A) 31.22

Explanation:

The reaction of sulfuric acid with NaOH is:

H₂SO₄ + 2 NaOH → Na₂SO₄ + 2H₂O

To solve this problem we need to determine the moles of acid that will react, and, using the chemical equation we can determine the moles of NaOH and the volume that a 0.2389M NaOH solution would require to neutralize it.

Moles H₂SO₄ (Molar mass: 98.08g/mol):

0.9368g * 39.04% = 0.3657g H₂SO₄ * (1mol / 98.08g) =

3.7289x10⁻³moles H₂SO₄

And moles of NaOH that you require to neutralize the acid are:

3.7289x10⁻³moles H₂SO₄ * (2 moles NaOH / 1 mole H₂SO₄) =

7.4578x10⁻³ moles NaOH

Using a 0.2389M NaOH solution:

7.4578x10⁻³ moles NaOH * (1L / 0.2389mol) = 0.03122L = 31.22mL

Right answer is:

A) 31.22

The relative formula mass (M) of a Group 2 metal carbonate is 197
Relative atomic masses (Ar): C = 12
O = 16
Calculate the relative atomic mass (Ar) of the Group 2 metal in the metal carbonate
Name the Group 2 metal.​

Answers

The relative atomic mass (Ar) : 137 and the element : Ba

Further explanation

The naming of chemical compounds is giving a special name to a compound that aims to facilitate the classification of compounds and facilitate the identification of a compound. The rules for naming chemical compounds have been determined by the IUPAC (International Union of Pure and Applied Chemistry)

This nomenclature includes the naming of ion compounds, covalent compounds, and polyatomic

The molar mass of a compound is given by the sum of the relative atomic mass of Ar  

M AxBy = (x.Ar A + y. Ar B)  

Group 2 metals have a +2 charge : M²⁺

So the compound of metal carbonate : MCO₃

Ar C = 12, O = 16

M MCO₃ = (1.Ar M + 1. Ar C+ 3. Ar O)  

[tex]\tt 197=1. Ar~M+1.12+3.16\\\\197=Ar~M+12+48\\\\Ar~M=137[/tex]

The element with relative atomic masses 137 is Ba

So the compound : BaCO₃

what's the difference between series and parallel circuit in table form?​

Answers

Hey :)

In a parallel circuit, a different amount of current flows through each parallel branch of the circuit.

In the series circuit, different voltage exists across each component in the circuit.

Whereas in the parallel circuit, the same voltage exists across the multiple components in the circuit.


Hope this helps :)
When there are two or more electrical devices in a circuit with an energy source, there are a couple of basic ways by which we connect them. They can either be connected in series or parallel. A series circuit is a circuit in which two components share a common node and the same current flows through them. However, in a parallel circuit, components share two common nodes. In this article, let us look at more differences between series and parallel circuit.

2. Which atom is larger, Na or Al? Explain why.

Answers

Answer:

Na

Explanation:

Because it has the highest protons and electrons(Atomic mass)

40POINTS AND BRAINLIEST Discuss the orders in which electrons are filled in the s and d subshells of the first three elements in group11​

Answers

Step 1: add electrons to fill the 1s subshell (maximum of 2 electrons), when this is full, go to step 2. Step 2: add electrons to fill the 2s subshell (maximum of 2 electrons), when this is full, go to step 3. Step 3: add electrons to fill the 2p subshell (maximum of 6 electrons), when this is full, go to step 4. Step 4: add electrons to fill the 3s subshell (maximum of 2 electrons), when this is full, go to step 5. Step 5: add electrons to fill the 3p subshell (maximum of 6 electrons), when this is full, go to step 6. Step 6: add electrons to the 4s subshell (maximum of 2 electrons), when this is full, go to step 7. Step 7: add electrons to the 3d subshell (maximum of 10 electrons), when this is full, go to step 8. Step 8: add electrons to the 4p subshell (maximum of 6 electrons), when this is full, go to step 9. etc

So for Cu would be: 1s^22s^22p^63s^23p^63d^9

Ag would be: 1s^22s^22p^63s^23p^63d^104s^24p^64d^105s^1

Au would be: 1s^22s^22p^63s^23p^63d^104s^24p^64d^105s^25p^64f^145d^106s^1

How has cooperation played a role in life's major evolutionary transitions?

Answers

Answer:

The cooperation of a species is shown throughout history. Including in our history. Where it be physical evolution or technological. We have helped each other with building, advice, locations, Reproduction, etc.

Which is a dominant trait that Mendel observed in pea plant

A. Bumpy pods

B. Short height

C. Yellow seeds

D. White flowers

it is not A

Answers

Answer:

C, yellow seeds

Explanation:

In Mandel's studies, he proved that yellow seeds were to be dominant and green seeds were to be recessive.

Answer:

c. yellow seeds

Explanation:

i toke the test

An unknown metal has a density of 10.51 g/ml and a mass of 287.8 g. What is the
unknown metal's volume?

Answers

Answer:

27.3834443387 so B

Explanation:

M/D=V

287.8/10.51=V

V=27.3834443387

Answer:

27.38

Explanation:

287.8 Divided by 10.51 = 27.38

Please mark brainliest if helped

Which changes involve forming or breaking chemical bonds?

A.burning and digesting

B.boiling and melting

C.burning and melting

D.rusting and cutting

Answers

Answer:

d

Explanation:

i took the test

Which energy transformations occur when a candle burns?
Thermal energy transforms into mechanical energy and radiant energy.
Chemical energy transforms into thermal energy and electrical energy.
Thermal energy transforms into radiant energy and chemical energy
Chemical energy transforms into thermal energy and radiant energy.

Answers

Answer:

D - Chemical energy transforms into thermal energy and radiant energy

Explanation:

Correct on edge 2020

Answer:

(D)

Explanation:

Chemical energy transforms into thermal energy and radiant energy.

Helium gas (He) is an element and not a compound. Why is this true?

Answers

If we fill up a balloon with just helium gas, it will only contain helium atoms.

.) If a solution had a pH level of 13.2, it would be considered a:
O A. strong base
O B. weak base
O C. strong acid
O D. weak acid

Answers

A pH level of 13.2 would be a very strong base!
A is the correct answer.

Remember, the high pH numbers are bases and the low ones are acidic.

The most important ELEMENT found in all living things is


A. Oxygen

B. hydrogen

C. Nitrogen

D. Carbon

Answers

Answer:

A. Carbon hope this helps

Answer:

D. Carbon. I guess that's the answer

Which option is a mixture? a.carbon dioxide b. air c. oxygen d. carbon

Answers

The answer would be A.) carbon dioxide

Answer:

Air

Explanation:

Did test 100

Can anyone explain to me how I solve 3x10^8 / 3.82x10^-7
I know the answer due to referring to the key but I'm not sure how they got it. Answer was 7.85x10^14

Answers

Answer:

You have to do this on a calculator. So when you put it in the calculator you will get 7.85x10^14.

3x10^8 is the speed of light. 3.82x10^-7 is the number in the question.

You can solve it like this

3x10^8

------------------        

3.82x10^7                  

But you would do this on a calculator.

Please help I’ll give brainiest!

Answers

Answer:

Im sorry if u get it worng but is it the 3rd one?

Explanation:

please help!! my grades dying
15 points

Answers

Answers-in-bold:

There are two common temperature scales. On the Fahrenheit scale, water freezes at 32 degrees. The Celsius scale divides the interval between the freezing and boiling points of water into 100 degrees.

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