PLSSS HELP WILL GIVE A LOOT OF POINTS

The diagram below shows two metal plates at different temperatures. Plate X is 30 degrees Celsius ( oC) and Plate Y is 50 degrees Celsius ( oC).

A.Plate X will become cooler and Plate Y will become cooler.
B.Plate X will become warmer and Plate Y will become cooler.
C.Plate X will become cooler and Plate Y will become warmer.
D.Plate X will become warmer and Plate Y will become warmer.

Answer: the longest a virus that can be kept on a plastic bag is a few hours to a couple of days.

Explanation: hope that helped!(:

Copper has the highest conductivity of any metal used in electronics. The statement is false.

Silver is the element that conducts electricity the best, followed by copper and gold.

The earth's most conductive metal is by far silver. Silver only has one valence electron, which explains this. This one electron can also go about freely and encounter little opposition. As a result, some of the metals with this particular property are silver and copper.

Silver is the metal with the highest thermal and electrical conductivity because of its distinctive crystal structure and lone valence electron.

Since copper is the non-precious metal with the highest conductivity, it has a higher electrical current carrying capacity than other non-precious metals. The strength of the metal rises when tin, magnesium, chromium, iron, or zirconium are added to copper to create alloys, but its conductivity decreases.

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Answer:

4.41 × 10²⁴ molecules SO₂

General Formulas and Concepts:

Atomic Structure

Stoichiometry

Explanation:

Step 1: Define

[Given] 7.32 moles SO₂

[Solve] molecules SO₂

Step 2: Identify Conversions

Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Step 3: Convert

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

4.4081 × 10²⁴ molecules SO₂ ≈ 4.41 × 10²⁴ molecules SO₂

Answer:

4.41 × 10²⁴ molecules SO₂

Explanation:

The Person is right

Answer:

A mixture

Explanation:

Answer:

yo what's the tool??

Explanation:

You have to give the tool. If this is from Edmentum, I'm also doing the same thing but with scissors.

Answer:

The energy required to completely separate the molecules, moving from liquid to gas, is much greater that if you were just to reduce their separation, solid to liquid. Hence the reason why the latent heat of vaporization is greater that the latent heat of fusion.

Answer:

It takes longer to boil water than to melt ice because of the difference in the amount of heat required to overcome the forces of attraction by keeping the temperature constant during this time. ... This is the reason it takes longer in boiling than in melting.

The molecular activity at the water's surface increases as the temperature rises. This means that more water molecules will be converted to gas. If the volume of the container remains constant, the vapour pressure would rise as more gas molecules were added. The vapour pressure would rise as the temperature rose.

Vapor pressure, also known as equilibrium vapour pressure, is the pressure exerted by a vapour in thermodynamic equilibrium with its condensed phases in a closed system at a given temperature.

The equilibrium vapour pressure indicates the rate of evaporation of a liquid. It refers to the proclivity of particles to escape from a liquid. A volatile substance is one that has a high vapour pressure at normal temperatures.

The pressure exerted by vapour above a liquid surface is referred to as vapour pressure. The kinetic energy of a liquid's molecules increases as its temperature rises. As the kinetic energy of the molecules increases, so does the number of molecules that transition into vapour, increasing the vapour pressure.

According to the Clausius-Clapeyron relationship, the vapour pressure of any substance increases nonlinearly with temperature.

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Answer:

yes

Explanation:

This is because all living tissues

have magnetic properties that are affected to some extent by the existence of electromagnetic radiation in the environment.

Answer:

The answer is

Explanation:

The percentage error of a certain measurement can be found by using the formula

\(P(\%) = \frac{error}{actual \: \: number} \times 100\% \\ \)

From the question

actual volume = 22.4 L

error = 22.4 - 19.3 = 3.1

The percentage error is

\(P(\%) = \frac{3.1}{22.4} \times 100 \\ = 13.839285714...\)

We have the final answer as

Hope this helps you

Because there is so much empty space between the gas particles, most of a gas' volume is made up of compressible gas molecules, Hence option c is correct. i.e, Its particles are spread far apart.

The greater compressible nature of gases compared to liquids or solids is explained by the kinetic-molecular hypothesis. The average distance between the gas molecules at standard pressure and room temperature is roughly 10 times the diameter of the molecules.  Gas particles are pushed closer together when a gas is compressed, such as when the diving tank is then being filled.

There are various uses for compressed gases. Patients with damaged lungs are frequently given oxygen in hospitals to help them breathe better. When a patient is having a major procedure, a compressed gas is usually used to give anesthetic. 

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Answer:

In a periodic table the average atomic mass of magnesium is given as 24.312 u.

Answer: The partial pressure of oxygen is 187 torr.

Explanation:

According to Raoult's law, the partial pressure of a component at a given temperature is equal to the mole fraction of that component multiplied by the total pressure.

\(p_1=x_1p_{total}\)  

where, x = mole fraction  

\(p_{total}\) = total pressure  

\(x_{oxygen}=\frac{\text {moles of oxygen}}{\text {total moles}}\),  

\(x_{oxygen}=\frac{3.0}{12.33}=0.243\),  

\(p_{oxygen}=0.243\times 770torr=187torr\)  

Thus the partial pressure of oxygen is 187 torr.

Answer:  The second one. 26 m/sec

Explanation: i hope this helps! have a great day :)

Answer:

The three main subatomic particles that form an atom are protons, neutrons, and electrons.

Explanation:

Answer:

The three main subatomic particles that form an atom are protons, neutrons, and electron

The values for the reduction potential are: Mn2+ = +1.51 V, NO3 = +0.96 V. According to the results shown, NO3's reduction potential is lower than Mn2 reduction potential. Thus, NO3 cannot oxidize Mn2+.

Considering half reactions:

MnO4(aq) + 8H (aq) + 5e Mn2+(aq) + 4H₂O(1)

NO3 (aq) + 4H (aq) + 3e NO(g) + 2H2O(1)

Both the reactions are reduction reactions involving gain of electrons. Nitrate ion is itself reduced to NO and can oxidize any ion which is losing electrons.

Reversing the first given reaction:

Mn2+ (aq) + 4H₂O(l) → MnO4¯(aq) + 8H+ (aq) + 5e-

NO3-(aq) + 4H +(aq) + 3e- NO(g) + 2H2O(1)

(l)According to this equation, Mn (II) loses electrons to get oxidized to permanganate ion and nitrate ion is reduced to NO. These 2 reactions give result to redox reaction where Nitrate can reduce itself to NO, and oxidize the corresponding Mn (II) ion.

An oxidation and a reduction are the two components of a redox process. These two processes, which are referred to as half reactions, entail altering the oxidation state of the reacting atoms.

Chemical processes known as oxidation-reduction reactions involve the exchange of electrons between the reacting species. The oxidation status of the reactants changes in conjunction with these electron exchanges.

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Answer:

Magnetic Force

Explanation:

All three types can be converted to kinetic energy through a force. Is there more potential energy when a magnet moves with (same direction as) or against (opposite direction from) a magnetic force? There is more potential energy when a magnet moves AGAINST (opposite direction from) a magnetic force.

And So B. is the Right answer

Answer:

6 days

Explanation:

The following data were obtained from the question:

Original amount (N₀) = 100 mg

Amount remaining (N) = 6. 25 mg

Time (t) = 24 days

Half life (t½) =?

Next, we shall determine the decay constant. This can be obtained as follow:

Original amount (N₀) = 100 mg

Amount remaining (N) = 6. 25 mg

Time (t) = 24 days

Decay constant (K) =?

Log (N₀/N) = kt / 2.303

Log (100/6.25) = k × 24 / 2.303

Log 16 = k × 24 / 2.303

1.2041 = k × 24 / 2.303

Cross multiply

k × 24 = 1.2041 × 2.303

Divide both side by 24

K = (1.2041 × 2.303) / 24

K = 0.1155 /day

Finally, we shall determine the half-life of the isotope as follow:

Decay constant (K) = 0.1155 /day

Half life (t½) =?

t½ = 0.693 / K

t½ = 0.693 / 0.1155

t½ = 6 days

Therefore, the half-life of the isotope is 6 days

Answer:

The answer is animals

Explanation:

Plants and fungi have a cell wall, and although most bacteria lack a cell wall, the question is asking in which kingdom do ALL organisms lack a cell wall. Hope this helps.

Answer:Bacteria

Explanation:

Answer:

invalid

Explanation:

Just imagine doing this experiment MULTIPLE TIMES and one of the trials you get 72 Kcal while in another u get 12kcal. It doesn't make sense. Somewhere in the experiment she went wrong. So its invalid

The stroke volume of the subject is approximately 8000 mL or 8 liters per beat, the subject has a cardiac output of 4.5 L/min. and an R-R interval.

To calculate the stroke volume (SV) of the subject, we need to use the formula:

SV = cardiac output/heart rate

However, the heart rate is not directly provided in the given information. The R-R interval represents the time between consecutive R waves in an electrocardiogram (ECG) and can be used to calculate the heart rate (HR).

The heart rate (HR) is the reciprocal of the R-R interval:

HR = 1 / R-R interval

Given that the R-R interval is 1.3333 seconds, we can calculate the heart rate:

HR = 1 / 1.3333 sec ≈ 0.75 Hz

Now, we can use the calculated heart rate and the given cardiac output to find the stroke volume:

SV = cardiac output/heart rate

SV = 4.5 L/min / 0.75 Hz

To convert the cardiac output from liters per minute to milliliters per minute, we multiply by 1000:

SV = (4.5 L/min * 1000 mL/L) / 0.75 Hz

SV ≈ 6000 mL / 0.75 Hz

SV ≈ 8000 mL/beat

Therefore, the stroke volume of the subject is approximately 8000 mL or 8 liters per beat.

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Answer:

Earth

Explanation:

The Earth and the sun are the part of the solar system and the earth and other planets revolve around the Sun. The solar system is placed in the universe.

Answer:

SO3

Explanation:

mS/ mO = 32x/16y = 16/24

x/y = 1/3