Please help me, Thank you!

Answer:

Yes because

Explanation:

Answer:yes because the battery's electrical energy will make the wheels turn.

Answer: polar molecule.

Explanation:

The boiling point is the temperature at which the vapor pressure of a liquid equals the external pressure surrounding the liquid. The boiling point is dependent on the type of forces present.

Iodine monochloride (ICl) is a polar molecule due to the difference in electronegativities of iodine and chlorine. Thus the molecules are bonded by strong dipole dipole forces. Thus a higher temperature is needed to generate enough vapor pressure.

Bromine [tex](Br_2)[/tex] is a non polar molecule as there is no electronegativity difference between two bromine atoms. The molecules are bonded by weak vanderwaal forces and thus has low boiling point.

Answer:

The molar mass and molecular weight of Sn(CO3)2 is 238.728.

Explanation:

Molar mass of any molecule can be calculated by adding mass of all individual atoms  that comprises the compound. The Molar mass of [tex]Sn(CO_{3})_{2}[/tex] is 238.72g/mol.

Molar mass is defined as mass of one mole of a molecule or compound. It's SI unit is g/mole. The other term that is used for molar mass is molecular weight, formula unit mass. Molar mass is extensive property as it depends on the mass of individual atoms that constitutes the molecule.

Mass of tin= 118.71 g.mol

Mass of Carbon=12g/mol

mass of Oxygen= 16g/mole

Molar mass of [tex]Sn(CO_{3})_{2}[/tex] = 1×mass of tin+2×mass of carbon+6×mass of oxygen

substituting all the values we get

Molar mass of [tex]Sn(CO_{3})_{2}[/tex] = 1×118.71+2×12g/mol+6× 16g/mole

Molar mass of [tex]Sn(CO_{3})_{2}[/tex] =118.71 +24+66

Molar mass of [tex]Sn(CO_{3})_{2}[/tex]=238.72g/mol

Therefore the Molar mass of [tex]Sn(CO_{3})_{2}[/tex] is 238.72g/mol

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Answer: the water molecules become more organized and heat is released into the atmosphere as a result.

Explanation:

Answer: two unpaired

Explanation: In general, electrons are removed from the valence-shell s-orbitals before they are removed from valence d-orbitals when transition metals are ionized. And thus, V3+ is paramagnetic, because it has two unpaired 3d-electrons.

Answer:  a. 0.8 tons p. month.

Explanation:

Given: Total nuclear waste = 60,000 metric tons

Time take = 60 years = 12 x 60 months   [ 1 year = 12 months]

=  720 months

Total nuclear power plants = 104

Now , Average  waste produced by each plant = [tex]\dfrac{\text{Total waste}}{\text{Time x Number of plants}}[/tex]

[tex]=\dfrac{60000}{720\times104}\approx0.8\text{ tons per month.}[/tex]

Hence, 0.8 tons p. month is produced by each plant.

So, option a. is correct.

Answer:

A on edge 2021

Explanation:

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.

Answer:i think it is c, it explodes in water because that’s a chemical reaction

Explanation:

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.

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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Answer:

the answer is is C 465 grams

Answer:

It contains chemical potential energy.

Explanation:

Explanation:

Pure substances are elements and compounds. These substances have the following properties:

Heterogeneous mixtures have completely opposite properties as the pure substances as given above.

I hope this helped! +*♡

A segment of DNA is called a  gene.

A complex of nucleic acids and proteins that make up chromosomes is called  Chromatin

A structure in the nucleus of an eukaryotic cell that is made up of condensed DNA is called a  chromosome.

Answer:

1. Gene

2. Chromatin

3. chromosome

Explanation:

I hope this helps you :)

Answer:

O my OMG

Explanation:

Remember Nicki vs. Cardi

Answer:

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

Hope this helps you

Answer:

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

Explanation:

Answer:

single displacement reaction

Explanation:

it is because an atom(Pb) dispalces another atom(H) in H3PI4

The given chemical reaction is single displacement reaction.

When one element in a molecule gets replaced by another, is therefore called a single displacement reaction.

The given reaction is Pb + 2 H3PO4 → 3 H2 + Pb3(PO4)2

It can be seen that when lead is treated with H3PO4 then it will give Pb3(PO4)2 and hydrogen reaction. It is a kind of single displacement reaction.

Therefore, the given reaction is single displacement reaction.

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Answer:

2Na2O2 + 2H2O → 4NaOH + O2 is the balanced ver of Na2O2 + H2O - NaOH + O2

Explanation:

Answer:  B. 29.76°C

Explanation:

The melting point is known as an intensive property of matter. This means the melting point is not affected by the amount of mass. Whether the metal is really large or small, the melting point of gallium (Ga) is roughly 29.76 degrees Celsius.

Answer:

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

Explanation:

Answer:

Hes gonna cook those chickens.....

Answer:

Its 1500 meters, which is equal to 0.9320568 miles. Hope this helps!

Explanation:

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.

Answer:

A geologist would observe how the material that the sculpture is made out of reacts to the acid.

Answer:

Helium

Explanation:

Helium has the smallest atomic radius. This is due to trends in the periodic table, and the effective nuclear charge that holds the valence electrons close to the nucleus.