Plzzzzz helppppp it’s due already I’ll mark Brainly

Plzzzzz Helppppp Its Due Already Ill Mark Brainly

Answers

Answer 1
Is it too late to answer?

Related Questions

What causes surface water to move

Answers

Answer:

C - Wind

Explanation:

its C or wind because global wind systems control the surface water

Answer:

Wind

Explanation:

surface water from oceans move from the wind I assume it is the same for all bodies of water

ALL I ask is you answer correctly I'm having a bad day ! :(

Jimmy Fallon was playing with acids and bases and was trying to determine how many grams of Copper (I) Hydroxide he would need to create 48.76 grams of Copper (I) Phosphate when reacting it with Phosphoric Acid.

Answers

Answer:

i have no clue whats going on here but imma act like i do.....

Explanation:


What is not a mass of 1 mole of a substance?

Answers

Explanation:

been defined in such a way. It is defined as the numbers of particles in 12 g of 12C. If it were 24 g instead of 12 g, then the weight of 1 mole of substance would equal 2 times the atomic/molecular mass in grams.

Which object has the greatest inertia

Answers

Answer:

D

Explanation:

lighter objects have higher inertia

I think the answer is D :)

what physical properties can be used to separate heterogeneous mixture's?

Answers

evaporation, distillation, filtration and chromatography
Hope it help you, have a nice day

what is ionizable hydrogen and why we say it replaceable hydrogen​

Answers

Answer:

only hydrogen atoms that are part of a highly polar covalent bond are ionizable. The hydrogen atom is attracted to the lone pair of electrons in a water molecule when HCl is dissolved in water. The result is that the H−Cl bond breaks, with both bonding electrons remaining with the Cl, forming a chloride ion.

Explanation:

Answer:

In an acid molecule, hydrogen atoms may be substituted by metal atoms.

Explanation:

It is ionizable only to hydrogen atoms that are part of a strongly polar covalent bond. As HCl is dissolved in water, the hydrogen atom is drawn to the lone pair of electrons in a water molecule. The effect is that the H-Cl bond splits, with the Cl remaining with both bonding electrons, forming a chloride ion.

Type the correct answer in the box.

Anna used 900 gallons of gasoline last year driving to and from work. This year, she changed jobs. She now uses only 600 gallons of gas annually.

If each gallon of gas releases 20 pounds of CO2 when burned, Anna reduced her CO2 emissions by ______%.

WILL MARK BRAINLIEST

Answers

Answer:The answer is 3.33%. Anna reduced her CO2 emissions by 3.33% from using 600 gallons of gas annually than from using 900 gallons of gasoline annually.

Explanation:

A balloon is filled with helium gas has a volume of 1.0 L at a pressure of 1.0 atm. The
balloon is released and reaches an altitude where the pressure is now 0.4 atm. What is the
new volume of the balloon at this altitude assuming the air temperature has not changed?

Answers

Answer:

2.5 L

Explanation:

The new volume of the balloon can be found by using the formula for Boyle's law which is

[tex]P_1V_1 = P_2V_2[/tex]

Since we are finding the new volume

[tex]V_2 = \frac{P_1V_1}{P_2} \\[/tex]

From the question we have

[tex]V_2 = \frac{1 \times 1}{0.4} = \frac{1}{0.4} \\ = 2.5[/tex]

We have the final answer as

2.5 L

Hope this helps you

What Elements that have an atomic number less than 37 and atomic mass greater than 78.4u?

Answers

Answer:

krypton

bromine

selenium

If the electronnegavity difference between elements A and X is 0.8, the bond in AX will most likely be what?

Answers

Answer:

Polar covalent bond

Explanation:

When the electronegativity difference between two elements A and X is 0.8, the bond AX formed will most likely be a polar covalent bond.

A polar covalent bond is one whose electronegativity difference is between 0.5 and 2.1.

In such a bond type, we have heteronuclear species with one of the species having a higher electronegativity value.

When electronegativity difference is less than 0.5, a non-polar covalent bond forms. If the value is greater than 2.1, an ionic bond will form.

does anyone have the 2020 paper for chemistry

Answers

Answer:

Erm.......... can you clarify what "paper", you just said "paper" there's a lot.

Explanation:

How many different elements are involved in the chemical reaction shown


Ca+2H2O>ca(OH)2+H2

Answers

Explanation:

1.ca

2.H

3.O

.................

Which statement below is not part of the cell theory? a. All living things have many cells b All living things are made of one or more cells c cells are the basic unit of structure and function in living things d All cells come from other cells

Answers

D I believe is the answer

Answer:

c

Explanation:

I know it's c because I have done the test

TIME REMAINING 52:03 Considering the activity series given below for metals and nonmetals, which reaction will occur?

Al > Mn > Zn > Cr > Fe > Cd > Co > Ni > Sn > Pb > H > Sb > Bi > Cu > Ag > Pd >Hg > Pt F > Cl > Br > I

2NaBr + I2 Right arrow. 2NaI + Br2

2Fe + Al2O3 Right arrow. 2Al + Fe2O3

2AgNO3 + Ni Right arrow. Ni(NO3)2 + 2Ag

Pb + Zn(C2H3O2)2 Right arrow. Zn + Pb(C2H3O2)2

Answers

Answer:

2NaBr + I2 Right arrow. 2NaI + Br2

2AgNO3 + Ni Right arrow. Ni(NO3)2 + 2Ag

Explanation:

The activity or electrochemical series is an arrangement of elements according to their order

of reactivity.

If we look at the reactions, one thing that we must note is that the reactions that can occur are those in which an element that is higher in the series displaces another element that is lower in the series.

Br is higher in the electrochemical series than I so it can displace it. Ni is higher than Ag in the electrochemical series hence it can displace it.

Answer: c

Explanation: Edge2021

2.At 35°C, a small sample of methane gas (CH4) has a volume of 1.5 liters. The temperature of the methane gas is slowly cooled to 17°C. What is the new volume of the methane sample?​

Answers

Answer:

V₂ = 1.41 L

Explanation:

Given data:

Initial temperature = 35°C (35 +273.15 K = 308.15 K)

Initial volume = 1.5 L

Final temperature = 17°C (17+273.15 K = 290.15 K)

Final volume = ?

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 1.5 L × 290.15 K / 308.15 k

V₂ = 435.23 L.K / 308.15 k

V₂ = 1.41 L

formulas for volume​

Answers

Shape Formula Variables

Cube V=s3 s is the length of the side.

Right Rectangular Prism V=LWH L is the length, W is the width and H is the height.

Prism or Cylinder V=Ah A is the area of the base, h is the height.

Baldor's Value Formula was created more than 25 years ago to simply illustrate the equal importance of four factors that shape our customers' perception of value. Quality and Service are factors we strive to increase in order to improve perceived Value.

How many grams are equal to 413 kg in scientific notation

Answers

Answer:

[tex]4.13[/tex] x [tex]10^{2}[/tex] = 413 kg

Explanation:

4.13 x 10 = 41.3 then we multiply 41.3 by 10 agian = 41.3 x 10 = 413

so, we multiplied ten two times that = [tex]10^{2}[/tex]

= 4.13 x [tex]10^{2}[/tex]= 413 kg

Given that 1 kilogram = 1000grams, the value of 413 kilograms in grams, using scientific notation is 4.13 × 10⁵g.

How many grams are equal to 413 kg in scientific notation?

Note that;

1 kilogram = 1000grams

Given that;

Mass in kilograms = 413kgMass in grams = ?

Since, 1 kilogram = 1000grams

413 kilograms = ( 413 × 1000 )grams

413 kilograms = ( 413000 )grams

413 kilograms = 4.13 × 10⁵ g

Given that 1 kilogram = 1000grams, the value of 413 kilograms in grams, using scientific notation is 4.13 × 10⁵g.

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calculate the mass of a sample of cobalt containing 3.31x10^22 atoms

Answers

Answer:  

Mass = 3.24 g

Explanation:

Given data:

Number of atoms of cobalt = 3.31 × 10²² atoms

Mass of cobalt atoms  = ?

Solution:

We will calculate the number of moles of cobalt by using Avogadro number.

1 mole contain 6.022× 10²³ atoms

3.31 × 10²² atoms  × 1 mol / 6.022× 10²³ atoms

0.549 mol × 10⁻¹

0.0549 mol

Mass of cobalt:

Mass = number of moles × molar mass

Mass = 0.0549 mol × 58.93 g/mol

Mass = 3.24 g

Step 2: measure the area of the top of the syringe

Answers

I am unsure if this is correct, but this might be the whole section:

The top of the syringe is a circle. You need to compute its area for use in later computations of pressure values. Start by using a ruler to measure the diameter. Estimate to the nearest 0.01 cm. Answer: 3.60 cmDivide by two to find the radius. Maintain significant figures. Answer: 1.80 cmSubstitute the radius into the formula A = πr² to find the area of the top of the syringe. Maintain significant figures. Answer: 10.2 cm²

Which nuclear equation represents a spontaneous decay?

(1) Rn 21% Po + He

(2) 13 Al + He 18P + on

(3) 235 U + in ~ 13% Ba + Kr + 3n

(4) Li + H → He + He

a. 1

b. 2

C 3

d. 4

Answers

Answer:

a. 1

Explanation:

Radon is a member of group 18. It is an odorless heavy gas, that emanates from materials that contain uranium.

Rn is a decay product of 226-Ra, a member of the uranium decay series. The spontaneous  decay of Rn decay leads to the emission of an alpha particle.

Rn has a half-life of about 3.8 days and its decay product is 218Po.

The nuclear reaction which shows a spontaneous decay is Rn 21% Po + He.

What is spontaneous reaction?

Those reaction in which value of their enthalpy change and change in Gibb's free energy is negative, are spontaneous in nature.

Among all of the given reaction, only first reaction is spontaneous in nature because the given element Radon (Rn) is the product of the decay of uranium series. And in this reaction energy is emitted in the form of alpha particles.

Hence, option (1) is correct.

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___ organisms only need one cycle of cell division to create offspring

Answers

Answer:

asexual organisms because they

self reproduce by fissure division instead of meiosis

Which is a statement of the second law of thermodynamics?
O A. Entropy tends to increase in a system.
O B. Molecular motion stops at absolute zero.
O C. The net reaction rate is zero at equilibrium.
O D. Energy cannot be created or destroyed.

Answers

Answer:

A: Entropy tends to increase in a system

Which is a statement of the second law of thermodynamics?

O A. Entropy tends to increase in a system.

O B. Molecular motion stops at absolute zero.

O C. The net reaction rate is zero at equilibrium.

O D. Energy cannot be created or destroyed.

ITS A

How many liters are in 3.00 moles of Ar

Answers

How many liters are in 3.00 moles of Ar
A: 67.2

What does it mean when you ask your dad whats he going to do with the chikens and hes says feed them some fried chiken?

Answers

Answer:

It means your dad is making those chickens cannibal's.......

Explanation:

Answer:

Hes gonna cook those chickens.....

Distance and mass are factors that affect the force of

Answers

Answer:

Gravity is a fundamental underlying force in the universe. The amount of gravity that something possesses is proportional to its mass and the distance between it and another object.

Explanation:

Hope it helped, brainliest???

model and Schrodinger's atom model?

Answers

Explanation:

the model assumes that the electron is a wave and tries to describe the regions in space orb orbitals where most likely to be found

An element whose atoms have the electron configuration 2-8-18-1 is
А
a transition element
B
a noble gas
an alkali metal
D
an alkaline earth metal

Answers

Answer:

A transition element atomic number 29 copper Cu

Explanation:

What does x mean- like person x person?

Answers

Answer:

× = and

Explanation:

person and person

To me it means two people u would like to see be a couple or like people u ship

A small amount of solid potassium dichromate is added to water and stirred until all of the solid has dissolved and a clear orange liquid is produced. This process may be described as: Group of answer choices the formation of a heterogeneous mixture. dissolution of the molecular compound sublimation. dissolution and dissociation of the ionic compound.

Answers

Answer: dissolution and dissociation of the ionic compound.

Explanation:

Ionic compound is formed by the transfer of electrons.

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

Here potassium metal forms [tex]K^+[/tex] cation and [tex]Cr_2O_7^{2-}[/tex] anion which exchange their oxidation states to form [tex]K_2Cr_2O_7[/tex].

When ionic compound is dissolved in water, it dissociates to its respective ions.The ions form bonds with oppositely charged ions of water molecules and thus get dissolved in water called as dissolution.

What is the percent composition of C3H8?

Answers

Answer: Hydrogen - 18.286%( mass present)

              Carbon - 81.714%(mass present)

Explanation:

Mass percentage does not have any unit as numerator and denominator contains the same unit. Therefore, the percent composition of C and H in C[tex]_3[/tex]H[tex]_8[/tex] is 81.8% and 18% respectively.

What is percentage by mass?

Mass percentage represents the the percentage of each element that is making a particular compound.

Mathematically,

Percentage of mass = (component’s mass ÷ total mass) x 100%

Atomic weight of different element of calcium phosphate

C= 12g/mol , H=1g/mol

Total mass of Carbon element in C[tex]_3[/tex]H[tex]_8[/tex] = 12 × 3 = 36

Total mass of hydrogen atom in C[tex]_3[/tex]H[tex]_8[/tex] = 1 × 8 = 8

Total molar mass of  C[tex]_3[/tex]H[tex]_8[/tex] =36 + 8 =44 g/mole

Percentage of carbon in C[tex]_3[/tex]H[tex]_8[/tex] =36/44× 100  =81.8%

Percentage of hydrogen in C[tex]_3[/tex]H[tex]_8[/tex] =(8÷44)×=18%

Therefore, the percent composition of C and H in C[tex]_3[/tex]H[tex]_8[/tex] is 81.8% and 18% respectively.

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