Consider the energy transfers and transformations that occur when a person rides a bicycle. Describe thi
process by selecting the correct options from the drop-down menus.
Chemical energy is transformed into
energy in the person's muscles.
Kinetic energy is
from the person's legs to the pedals.
Kinetic energy is
thermal energy due to friction when the wheels get warm.
DONE

Answer:

Name the non-metal furthest to the left on the periodic table by its elemental name.

Name the other non-metal by its elemental name and an -ide ending.

Use the prefixes mono-, di-, tri-.... to indicate the number of that element in the molecule.

im prolly wrong

Answer:

Explanation:

f the mass of an object is 35 grams and it takes up 7 cm3 of space, calculate the density.

34 pages

Answer:

About 57.60 mL.

Explanation:

We can utilize the dilution equation:

[tex]\displaystyle M_1V_1 = M_2V_2[/tex]

Where M are the molarities of the solutions and V are the volumes of the solutions.

We want to determine the volume of a 2.903 M NaOH solution to mix in order to produce 500.0 mL of a 0.3344 M solution.

Substitute and solve for V₁:

[tex]\displaystyle \begin{aligned} (2.903 \text{ M})V_1 & = (0.3344 \text{ M})(500.0 \text{ mL}) \\ \\ V_1 & = 57.60\text{ mL} \end{aligned}[/tex]

In conclusion, 57.60 mL of a 2.903 M NaOH solution is needed.

Answer:

see below

Explanation:

1- lattice

2- regular

3- positive

4- negative

5- alternate

6- strong

7- bonds

8- giant

Answer:

c is the

Explanation:

Answer:

Large molecules tend to have greater boiling points because the London dispersion forces are stronger within.

Explanation:

Explanation:

Pressure = Force/Area

therefore,

P = 15/0.00372

= 4.03 X10^³N/m²

Answer:

D — All of them

Explanation:

The activation energy in a reaction is the minimum amount of energy required for a chemical reaction to take place. Since all the options are processes in a chemical reaction, D should be the answer.

Answer:

Explanation:

H2O is a polar molecule

Answer:

polar covalent molecule

Explanation:

the unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that water has two pole a positive and a negative.

Answer:

Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena. The term law has diverse usage in many cases across all fields of natural science.

Explanation:

I hope this helps

Answer:

Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena. Scientific law differs from scientific theory. The main difference between a law and a theory is that a theory tries to explain the reasoning behind something that occurs in nature, whereas scientific laws are just descriptive accounts of how something occurs in nature.

Answer:

Chemical, Mechanical, and Nuclear Energy

Explanation:

There are 0.566 moles of carbonate in sodium carbonate.

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Answer:

the answer is A because the rest wouldnt go good with the work

Explanation:

B. All atoms of silver have the same atomic number but different numbers of neutrons in the nucleus.

Answer:

30kg

Explanation:

F=ma

Force=mass×acceleration

40=m×15

m=450/15

m=30kg

Answer:

Coordinate-bond meaning

A type of covalent bond in which both the shared electrons are contributed by one of the two atoms. ... The definition of a coordinate bond is a chemical bond between two atoms when one of the atoms shares a pair of electrons.

Explanation:

Explanation:

is a covalent bond in the sharing of electron pair equally between two atoms in which each atom contribute an electron.

it is form when atomic orbitals of atoms each containing an unpaired electron overlap to share the pair of electrons.

How many moles is 7.78 x 1024

formula units of MgCl2?

answer: 7966.72

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, there are 0.49moles of  MgCl[tex]_2[/tex] in  7.78 x 10²⁴atoms of MgCl[tex]_2[/tex] .

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity of amount of substance. It measure the number of elementary entities of a given substance that are present in a given sample. There are so many formula for calculating mole.

we know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number

mole =given number of atoms ÷ 6.022×10²³(Avogadro number)

given number of atoms of MgCl[tex]_2[/tex]= 7.78 x 10²⁴

Substituting the values

mole= 7.78 x 10²⁴÷ 6.022×10²³

mole = 0.49moles of  MgCl[tex]_2[/tex]

So, there are 0.49moles of MgCl[tex]_2[/tex] in  7.78 x 10²⁴atoms of MgCl[tex]_2[/tex] .

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that' the answer i don't need an explanation

The average reaction rate for oxygen gas is 49.26 mL/s

The average reaction rate of a substance refers to the speed at which a reaction occurs and therefore products are formed. In the reaction presented, oxygen gas is the product.

Moreover, the average reaction rate can be expressed in mL per second or mL/s, and the formula to calculate it is:

Product in mL/seconds

Let's calculate the reaction rate:

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the [moon] and stars are what most people see.

nothing will happen

if you calculate the water potiential for both solutions

you get 2(0.1)(R)(T) and 1(0.2)(R)(T)

which is the same thing, so its isotonic.

Answer:

The adaptive organ of duck is webbed feet.

Explanation:

Duck's webbed feet are designed like paddles to provide more surface area to help them swim.

the webbed feet

Explanation:

Answer:

Radioactive material

Explanation:

Since it is conventional in science to use an average not just a single result, the original average should be used because it came from three results, not just one.

The boiling point refers to the temperature when the pressure of the fluid equals the atmospheric pressure. Hence, boiling occurs at atmospheric pressure.

In scientific experiments, it is common to conduct experiments more than once and obtain an average value for the measurement. In this case, the original average should be used because it came from three results, not just one.

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Molecular substances tend to be gases because the intermolecular forces of attraction are comparatively weak. You don't have to break any covalent bonds in order to melt or boil a molecular substance.

The longest intermolecular separation and hence the strongest intermolecular pressure of attraction can be found in the gaseous state of matter.

Although solids' intermolecular interactions were sufficient to maintain themselves in locked places, gases often have weak intermolecular forces that cause them to remain considerably separated. The gases possess greater intermolecular space than solids as a result of these weak forces.

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Answer:

An earthquake's what happens when two blocks of the earth suddenly slip past one another.

located directly above its The epic Center

Explanation:

Answer:

6KCl(aq) +  Mg3(PO4)2(s)  ...  balanced equation

Explanation: