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The density of the metal beads is 12.47 g/mL (option c).

1. Determine the mass of the metal beads:

  Mass of beaker + metal beads = 205.5 g

  Mass of empty beaker = 82.0 g

  Mass of metal beads = (Mass of beaker + metal beads) - (Mass of empty beaker)

                    = 205.5 g - 82.0 g

                    = 123.5 g

2. Determine the volume of water displaced by the metal beads:

  Initial volume of water in the graduated cylinder = 60.9 mL

  Final volume of water in the graduated cylinder = 70.8 mL

  Volume of water displaced = Final volume - Initial volume

                           = 70.8 mL - 60.9 mL

                           = 9.9 mL

3. Calculate the density of the metal beads:

  Density = Mass / Volume

  Density = 123.5 g / 9.9 mL

  Density = 12.47 g/mL

Therefore, the density of the metal beads is 12.47 g/mL (option c).

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Answer:The age can be determined by utilizing carbon-14, a radioactive isotope of carbon.

Explanation:

Answer:

to the right of the steps

Explanation:

the metals stop at the stair step

Answer:

Argon, neon, krypton, Xenon, Radon and Organesson

Convert 68 Millimeters to Kilometers (mm to km) with our conversion calculator and conversion tables. To convert 68 mm to km use direct conversion formula below.

68 mm = 6.8E-5 km.

You also can convert 68 Millimeters to other Length (popular) units.

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Answer: Is it sewage checks

A compound is formed when two or more elements are chemically combined.

Ex: [tex]H{2}O[/tex]

A mixture is formed when two or more elements and/or compounds are physically combined.

Ex: [tex]NaCl + H{2}O[/tex]

Answer:

Covalent or molecular compounds form when elements share electrons in a covalent bond to form molecules. Molecular compounds are electrically neutral. Ionic compounds are (usually) formed when a metal reacts with a nonmetal (or a polyatomic ion). Covalent compounds are formed when two nonmetals react with each other.

Explanation:

Hope this helps.

Not all chemical reactions are spectacular. They do not always involve substances that you think of as chemicals like the ones in the lab or in acid rain. ... When molecules of sulfenic acid get to your eyes, they can react with the water in your eyes to produce a new substance, a form of sulfuric acid.

Answer: 2.85 moles of flourine

Explanation:

find the atomic/molar mass of flourine on your periodic table.

multiply the given mass (54.1g) by (1 mole of flourine/atomic mass of flourine)

54.1g flourine * 1mole of flourine/18.998g flourine

(g flourine) in the above equation cancel each other.

54.1/18.998 = 2.85 mole of flourine

Answer:

The sun reflects off different parts of the moon as it orbits the earth

Explanation:

Answer:

the sun reflects off different parts of the moon as it orbits the Earth.

Answer:

The volume of the gas therefore becomes large as the temperature of the gas increases, the frequency of collisions with the walls of the container must increase. This, in turn, leads to an increase in the pressure of the gas.

Explanation:

hope it helps.

Answer:

The answer is D.) Beaker.  Hope this helps! :)

Answer:

destruction of protein bonds

Explanation:

bleach dyes the hair by opening the hair cuticle and dissolving the color (melanin). The longer you leave it on, the more the protein bonds (keratin) are destroyed.

The heat denatures the protein in the egg by disrupting some of its weak bonds that held the molecule into shape

Explanation:

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 calcium is having an oxidation state of +2 called as Ca^{2+}Ca2+ cation and NO_3^{-}NO3− is a polyatomic anion with oxidation state of -1.. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral Ca(NO_3)_2Ca(NO3)2

Answer:

i

Explanation:

The most common oxidation states of chromium are +6, +3, and +2. On the metal area of the periodic table.

Explanation:

Actual answer: 6

Well I also need help with this, this should help the both of us:

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

Explanation:

The first two period elements can form maximum 4 covalent bonds. However, third or higher period elements can make higher number of bonds for example; SF6.

Answer:

Atomic mass

Explanation:

It is the unit used o express atomic and molecular weights.

Answer:

D

Explanation:

Lamps

Answer:

11

Explanation:

because jrjrbd kiubsk luvs jd8uga

The force exerted on the parked car by the moving car is –30000 N

To solve this question, we'll begin by calculating the deceleration of the moving car. This can be obtained as follow:

Initial velocity (u) = 10 m/s

Final velocity (v) = 0 m/s

Time (t) = 0.5 s

[tex]a = \frac{v - u}{t} \\\\ a = \frac{0 - 10}{0.5}\\\\a = \frac{- 10}{0.5}[/tex]

Finally, we shall determine the force exerted by the moving car on the parked car. This can be obtained as follow:

Mass of moving car (m) = 1500 Kg

Acceleration (a) = - 20 m/s

F = ma

F = 1500 × (-20)

NOTE: The negative sign indicate force is in opposite direction to the parked car.

Therefore, the force exerted on the parked car by the moving car is –30000 N

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Answer:

thank you for the update on

Answer:

es la dos

Explanation:

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{6.20 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 10.299003[/tex]

We have the final answer as

Hope this helps you

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{4.36 \times {10}^{25} }{6.02 \times {10}^{23} } \\ = 72.425249[/tex]

We have the final answer as

Hope this helps you

Answer:

Water cooled down and contracted.

Explanation:

When water contracts, its volume decreases. When the volume of the water in the bottle system decreases, the water is pulled farther down the clear pipe.