The distance time graph for four objects is shown below:

Which objects is moving at constant speed?
A. Object A
B. Object B
C. Object C
D. Object D

Materials are transferred between individual cells and their internal environment through the cell membrane by diffusion, osmosis, and active transport. During diffusion and osmosis, molecules move from a higher concentration to a lower concentration. Osmosis: Osmosis is the movement of solvent particles across a semipermeable membrane from a dilute solution into a concentrated solution. Diffusion: Diffusion is the movement of particles from an area of higher concentration to lower concentration. This would be the diffusion.

Answer:

try to calcutlae on paper

Explanation:

try to calculate on paper

Answer:

Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

Explanation:

Answer:

a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

Explanation:

Here's an example. When you burn wood, It releases Carbon dioxide, water vapor, and ashes. It just depends what chemicals you use ^^

Answer:

water droplets falling on the clay

Explanation:

i finished this test and it was the right answer so lol

Answer:True

Explanation:

Answer:

False

Explanation:

Its false, the bonds become weaker.

Answer:

sun

Explanation:

source means where it comes from and the source of energy comes from the sun

Answer:

The limiting reagent is the reactant that is completely used up in a reaction, and thus determines when the reaction stops. From the reaction stoichiometry, the exact amount of reactant needed to react with another element can be calculated.

Explanation:

The Reactant That Limits The Rate (or Speed) Of A Chemical Reaction. The Reactant That Can Produce The Greatest Amount Of Product.

The reactant that is used up before the others best describes a limiting reactant.

Reactant is a starting material in a chemical reaction.

Hence, the reactant that are used up before the others best describes a limiting reactant.

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Answer:

A D-cell is a source of electric energy. A bulb is an energy receiver that produces light. To make a complete circuit, electricity must travel in a circle from one end of the battery to the other.

Explanation:

Answer:

It is balanced

Explanation:

There is 1 Carbon, 2 Hydrogen, and 1 Oxygen on the right and 1 Carbon, 1 Oxygen and 2 Hydrogen on the left. This equation is balanced.

Answer:

[tex]9.40x10^{23}molecules[/tex]

Explanation:

Hello!

In this case, since we are given the volume of N2O3 and pressure and temperature for the STP (1.00 atm and 273.15 K), we can compute the moles, considering the ideal gas equation as shown below:

[tex]PV=nRT\\\\n=\frac{PV}{RT} \\\\n=\frac{1atm*35L}{0.08206\frac{atm*L}{mol*K}*273.15K}\\\\n=1.56mol[/tex]

Now, by using the Avogadro's number it is possible to compute the molecules of this case in 1.56 moles:

[tex]molecules=1.56mol*\frac{6.022x10^{23}}{1mol} =9.40x10^{23}molecules[/tex]

Best regards!

Answer:

gas X

Explanation:

Answer/Explanation:

193.96 g/mol

Explanation:

true true true true true true

Answer:

False

Explanation:

Because that is your friend and your friend is helping you in other things that you need some help.

The chemical formula : 3HgBr₂(Mercury(II) bromide)

Given

The chemical formulas of Mercury and Bromine

Required

The appropriate chemical formula

Solution

A molecular formula is a formula that shows the number of atomic elements that make up a compound.  

The number of molecules is determined by the coefficient in front of the compound

the number of atoms is determined by the subscript after the atom and the coefficient

Three molecules⇒ coefficient = 3

one atom of Mercury ⇒Hg

two atoms of Bromine ⇒ Br₂

The chemical formula : 3HgBr₂

Answer:

0.246M

Explanation:

0.123M x 2 = 0.246M

Due to Sr(OH)2  has the coefficient of 2.

The [OH⁻] concentration for 0.123 M Sr(OH)₂  solution at 25°C  is 0.246M

The amount of a solution's solute to either the solvent or the entire solution is called Concentration.

The most common way to express concentration is in terms of mass per unit volume.

The solute concentration, on the other hand, can be expressed in moles or units of volume.

We assume

Sr(OH)2 is a strong base, such that

Sr(OH)₂(s) + H₂O(l) −−−→Sr²⁺(aq)+2OH⁻aq)

The [OH⁻] concentration for 0.123 M Sr(OH)₂  solution at 25°C

= 2 * 0.123

= 0.246 M

As two  [OH⁻] are being produced by Sr(OH)₂ .

The [OH⁻] concentration for 0.123 M Sr(OH)₂  solution at 25°C  is 0.246M.

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Answer:

The answer is D jessim should spin the glove quickly while walking in a circle around nancy.

Explanation:

Answer:

1) 61.8%

Explanation:

(4.2/6.8)*100

Answer:

Sodium Hydroxide + Sulfuric Acid = Sodium Sulfate + Water

2NaOH + H2SO4 → Na2SO4 + 2H2O

Explanation:

To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. The balanced equation will appear above.

Use uppercase for the first character in the element and lowercase for the second character. Examples: Fe, Au, Co, Br, C, O, N, F.

Ionic charges are not yet supported and will be ignored.

Replace immutable groups in compounds to avoid ambiguity. For example, C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but XC2H5 + O2 = XOH + CO2 + H2O will.

Compound states [like (s) (aq) or (g)] are not required.

You can use parenthesis () or brackets [].

Answer:

he ocean

Explanation:

They are sea cretures who origanly lived in water (or near i forgot)

Answer:

19.4 g/cm^3

Explanation:

Answer:

something that travels through a medium, transporting energy from one location to another location without transporting matter.

Explanation:

Answer:

A wave is a disturbance that moves energy from one to place to onother

i hope i can help

Answer:

lol thx

Explanation:

Answer:

Q = 146.25  J

Explanation:

Given that,

The mass of 10 copper pennis = 25 grams

It warm up from 23°C to 38°C.

The specific heat capacity of copper is 0.39 J/g°C

We need to find the energy absorbed by the pennies. The expression for the energy absorbed is given by :

[tex]Q=mc\Delta T\\\\Q=25\times 0.39\times (38-23)\\\\Q=146.25\ J[/tex]

So, 146.25  J of energy is absorbed by the pennies. Hence, this is the required solution.

Answer:

[tex]m_{C_6H_5Cl}=65.7gC_6H_5Cl[/tex]

Explanation:

Hello!

In this case, according to the given balanced chemical reaction:

[tex]C_6H_6 (l) + Cl_2 (g) \rightarrow C_6H_5Cl (s) + HCl (g)[/tex]

We can see there is 1:1 between benzene and chlorobenzene as the relavant product; thus, since the molar mass of benzene is 78.11 g/mol and that of chlorobenzene is 112.55 g/mol, the theoretical yield for this reaction turns out:

[tex]m_{C_6H_5Cl}=45.6gC_6H_6*\frac{1molC_6H_6}{78.11gC_6H_6 }*\frac{1molC_6H_5Cl}{1molC_6H_6}*\frac{112.55gC_6H_5Cl}{1molC_6H_5Cl} \\\\m_{C_6H_5Cl}=65.7gC_6H_5Cl[/tex]

Best regards!

Answer:

Explanation:

The formula would be PV=nRT but since were trying to find temp. the formula becomes T=PV/nR (n is the # moles and R is the ideal gas constant which equals 0.0821 for this)

The formula becomes T= 2.02 x 0.625 divided by 0.1243 x 0.0821 then just solve that in the calculator and u get 123.7K or 124K

Answer:

a power plant that runs on oil

Explanation:

A generator a power plant that runs on oil uses non-renewable sources of energy to generate electricity.

Non - renewable energy is an energy source that cannot be replenished within a short period of time. It takes geologic time scales to form such energy sources.

Oil is a fossil fuel and a non-renewable source of energy.

As it is used, the reserve is being depleted.

Answer:

a power plant that runs on oil