ok so im pretty sure im not writing the right thing in sooo if someone could give at least one or 2 answers, please that would be nice :)

Answer:

Digestive

Explanation:

Answer:

10 watts

Explanation:

Power = Work / time

Power = 50 J / 5 s

Power = 10 watts

The power that is necessary to do 50 joules of work in 5 seconds is 10 watts

Power is the amount of transfer of energy or converted per unit of time. Power is equal to energy divided by time. The SI unit of power is the watt. The three equations of power are:

P = Et.

P = Wt.

P = V2R.

Work is the transfer of energy from one body by the application of force. Work can be calculated by dividing force into displacement. Joule is the quantity by which work is calculated. The third equation will be used to calculate power.

There are different types of power that are used in doing work. They are legitimate, expert, reward, etc.

Given, 50 joules of work

Time is 5 seconds

Power = Work / time

Power = 50 J / 5 s

Power = 10 watts

Thus, the power is 10 watts.

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Answer:

10.5grams

Explanation:

Molarity = number of moles (n)/ volume (V)

According to this question;

Volume = 750 mL = 750/1000 = 0.75L

Molarity = 0.35M

number of moles (n) = molarity × volume

n = 0.35 × 0.75

n = 0.2625mol

Using mole = mass/molar mass

Molar Mass of NaOH = 23 + 16 + 1

= 40g/mol

mole = mass/molar mass

0.2625 = mass/40

mass = 10.5grams

10.5 grams are needed to prepare 0.75L of a 0.35 M solution of NaOH.

Answer:

23 g sodium

Explanation:

In chemistry, one mol (1mol) of a substance equals Avagadro's number or constant (6.02 × 10^23 atoms/particles/molecules).

According to this question in which the mass of different elements were given, the mass of the element that equals 6.02 × 10^23

Using the formula; mole = mass/molar mass

- Sodium = 23g/23g/mol = 1mol

- Krypton = 42g/84g/mol = 0.5mol

- Carbon = 24g/12g/mol = 2mol

- Pottasium = 78g/39g/mol = 2mol

Therefore, from the above illustration, it can be observed that only 23g of sodium contains 1 mol, hence, 23g sodium contains 6.02 × 10^23 atoms.

Answer:

different

Explanation:

A chemical reaction may be defined as the process or method by which a substance undergo a change in their structure chemically when reacting with some other substance and acquiring the property of both or sometimes forms a new substance. It leads to the chemical transformation of the chemical substance to some another substance.

The properties of the new substance formed is different form the parent substance before the reaction.

Thus, when chemical reaction occurs, the properties of the substances before the reaction and after the reaction takes place is different.

Answer:

LD50 is the amount of a material, given all at once, which causes the death of 50% ... LD100 Lethal dose for 100% of the animal test population ... Researchers can do the test with any animal species but they use rats or mice ... quoted as parts per million (ppm) or milligrams per cubic metre

Explanation: hope this helps :)

Answer:

primary

Explanation:

Answer:

It will condense.

Hope it helps,

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Thank you

0.555 atm is the pressure of a fixed volume of a gas at 30.0C if it has a pressure of 1.11atm at 15C.

The ideal gas equation, pV = nRT, is an equation used to calculate either the pressure, volume, temperature or number of moles of a gas.

According to Ideal Gas Equation,

PV = nRT

Therefore, P ∝ T

P₁T₂ = P₂T₁

Given :

P₁ = ?

P₂ = 1.11 atm

T₁ = 30.0 C

T₂ = 15 C

Solving :

P₁ x 30 = 1.11 x 15

P₂ = 0.555 atm

Hence, 0.555 atm is the pressure of a fixed volume of a gas at 30.0C if it has a pressure of 1.11atm at 15C.

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Answer:

They can check if one of the bullets is gone if the gun was fully loaded or they can see if there is any particles of gun powder on the gun. I may be wrong.

Answer: The mitochondria, as bacteria, only wanted to rob the host cells of their energy and then leave them to die. But the bacteria soon realized the benefit of working together with simple cells. The simple cells provide them with antioxidants to protect them from free radicals and toxic reactive oxygen species that the mitochondria generate as a byproduct of energy production.

Hope dis helps!

:)

1: Biosphere

2: Atmosphere

3: Hydrosphere

4: Atmosphere (I think?)

5: Stratosphere

6: Biosphere

7: Hydrosphere

8: Geosphere

:)

Answer:

yes

Explanation:

Answer:

D

Explanation:

can i get brainliest??

Answer:

1656.12grams

Explanation:

To calculate the mass of a substance in a particle, we need to calculate the number of moles (n).

n = nA × 6.02 × 10^23

nA = 8.98 x 10^24 particles

number of moles = 8.98 x 10^24 ÷ 6.02 × 10^23

n = 8.98/6.02 × 10^ (24 - 23)

n = 1.492 × 10^1

n = 14.92moles of CaCl2

Molar Mass of CaCl2 where Ca = 40g/mol, Cl = 35.5g/mol

CaCl2 = 40 + 35.5(2)

= 40 + 71

= 111g/mol

Using mole = mass/molar mass

mass = molar mass × mole

mass = 111 × 14.92

mass = 1656.12grams.

Explanation:

yes, chlorine and hydrogen form a polar covalent bond. Chlorine has a quantity of 7 electrons and hydrogen has only 1 electron, for this reason an unequal bond will form, that is, it will be uneven in distribution.

✧◝(⁰▿⁰)◜✧

Answer:

When a solid turns directly to a gas this is called sublimation. From the graph it can be seen if the pressure is raised to ~5 atm as the CO2 warms up, it will pass through its triple point.

Explanation:

Answer:If the pressure is raised to ~5 atm as the CO2 warms up, it will pass through its triple point.

Explanation:

The molarity of a substance is simply defined as the mole of solute per unit litre of the solution. Mathematically, it is expressed as:

[tex]Molarity = \frac{mole}{volume }[/tex]

From the question given above, the following data were obtained:

Molarity of KCl = 2.45 M

Mole of KCl = 0.5 mole

The volume of KCl needed can be obtained as follow:

[tex]Molarity = \frac{mole}{volume }\\\\2.45 = \frac{0.5}{Volume }[/tex]

Cross multiply

2.45 × Volume = 0.5

Divide both side by 2.45

[tex]Volume = \frac{0.5}{2.45}\\[/tex]

Therefore, 0.20 L is needed to make the solution.

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Answer:

A, Venus.

Explanation:

Temperatures reach up to 460° C on a regular basis.

Answer:

eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeiiiiiieeeeeemmmmmmmmiemeeeeeiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiimiiiimmmmmmmmmmmmmmmmmmmiimmiimiiiiiiiimiiiiiimmii

Explanation:

Answer:

0.00731 kg

Explanation:

Given that solution is a product of solute and solvent.

Hence, solution = solute * solvent

In this case, the solution is given as 0.950 grams = 0.00095 kilograms

solute is given as 130 grams = 0.13 kilograms

Hence to get the amount of solvent in kilograms, we have

Solution ÷ Solute => 0.00095 ÷ 0.13

= 0.0073076923

=> 0.00731 kilograms

Answer:

Mitochondria are the "powerhouses" of the cell, breaking down fuel molecules and capturing energy in cellular respiration. Chloroplasts are found in plants and algae. They're responsible for capturing light energy to make sugars in photosynthesis.

Answer:

In other words, the hot dog buns limit the number of complete hot dogs we can produce. ... The amount of a product that is formed when the limiting reactant is fully ... the limiting reactant and calculate the theoretical yield for an actual chemical reaction. ... Method 1: For the first method, we'll determine the limiting reactant by ...

Explanation:

Regarding the limiting reagent, it is true that:

Which of the following is true of a limiting reagent?

Regarding the limiting reagent, it is true that:

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Answer:

Yes

Explanation:

"a foreigner, especially one who is not a naturalized citizen of the country where they are living" is what we define as an alien

So we can say to ants we are aliens because we aren't a naturalized citizen in their country.

Answer:Yes aliens are real because the reason why i think this is because In the good old days, the arrival of UFOs on the front page of America’s paper of record might have seemed like a loose-thread tear right through the fabric of reality — the closest that secular, space-race America could have gotten to a Second Coming. Two decades ago, or three, or six, we would’ve also felt we knew the script in advance, thanks to the endless variations pop culture had played for us already: civilizational conflicts to mirror the real-world ones Americans had been imagining in terror since the beginning of the Cold War. And this is why i think aliens are real.

Explanation:Hope this helped also may i plz have brainlist?

Answer:

The grey squirrel.

Explanation:

This is your answer because the white one would have a harder time to blend in with the tree's and the environment, whilst the grey one is better suited for its environment better due to the fact that it can blend in with the trees, and hide better.

Answer:

6.93 J/g C

Explanation:

5200=50 g (15 C)x

5200=750x

Also I just took the test

Answer:

Explanation:

The coefficient is the number in front of a substance that indicates how many molecules or atoms are. For example, when we see 5He, it shows that there are 5 atoms of helium. When we see 5H₂O, it indicates that there are 5 molecules of water, each having 2 atoms of hydrogen and 1 atom of oxygen, so a total of 10 hydrogen atoms and 5 oxygen atoms.

Answer:

How can we decide which geologic process formed the channel on Mars? Students figure out: The channel on Mars was probably formed by water. The rover Curiosity found rocks near the channel that were made up of many smaller rocks.

Explanation:

Hope it helps! Correct me if I am wrong :>

Can you please mark me as brainlest?

Answer:Water

Explanation:

Water could have formed the channel on Mars because some of the rocks that scientists studied from the earth looks similar to the rocks on Mars.

Answer:

Environment Secretary can refer to:

Cabinet Secretary for Rural Affairs and the Environment, Scotland

Secretary for the Environment, Transport and Works, Hong Kong

Secretary of State for Environment, Food and Rural Affairs, United Kingdom

Secretary of the Environment (Mexico)