* I’ll give you brainlist* The skeletal system has many functions. Which of the following body functions does the skeletal system NOT do?

Answer:

4/5 of a bottle

Explanation:

Sarah, Leah, Haley, Lindsay, and Kim bought 4 bottles of water to share among themselves. They divided each bottle of water into 5 equal portions. Sarah took 1 portion from each bottle of water. Which equation represents how much of a bottle of water Sarah took?

Sarah must have taken 4/5 of a bottle

First, the 4 bottles of water were divided into 5 equal portions;

4 x 5 = 20 portions.

Sara too 1 portion from each bottle;

1 portion x 4 bottles = 4 portions

Which equation represents how much of a bottle water Sarah took?

Since each bottle water was divided into 5 equal proportions and assuming that the bottle waters are of the same volumes, then Sarah has taken 4 out of 5 portions of a bottle water.

Answer: 4 ÷ 5 ﹦4/5  ♡♡♡

Explanation: When you see eqautions like these, always remember that                          the first number goes on the top and the second one goes on the bottom. Hope this helps! (～﹃～)~Hi☆

Answer:

Lithium Bromide

Explanation:

Answer:

El bromuro de litio es un compuesto químico de litio y bromo. Su carácter higroscópico extremo hace que LiBr sea útil como desecante en ciertos sistemas de aire acondicionado.

Explanation:

Answer:

B.) Photosynthesis uses the carbon dioxide that is exhaled by living things to make oxygen.

Explanation:

Answer:

0.125

Explanation:

i took a test and got it right choosing this answer hopes this help

Answer:

OH-

Explanation:

Answer:

The particle represented by X(aq) is  A) H₂PO₄⁻(aq)

Explanation:

According to the Brønsted-Lowry Theory, a base is a substance capable of accepting protons (H⁺) in solution. Conversely, a substance acts as an acid if it acts as a proton donor.

A proton transfer then occurs, requiring the presence of a proton donor (an acid) and a base that accepts them.

When an acid gives up a proton, it becomes an anion, generating a conjugate base. That is, a conjugate base is an ion or molecule resulting from the acid that loses the proton. Conversely, a conjugated acid is an ion or molecule resulting from the base that the proton gains.

In this NH₃ / NH₄⁺ pair that NH₄⁺ is the conjugate acid of the NH₃ base, the latter acting as a base since it accepts a proton. H₃PO₄ then acts as an acid, yielding a proton and generating the conjugate base H₂PO₄⁻.

So, the particle represented by X(aq) is  A) H₂PO₄⁻(aq)

Answer:

People who live in hot, dry climates often rely on desalination plants for their drinking water.

Explanation:

This is your answer.

Answer:

0.132

Explanation:

is the only part i know

Answer:

B

Explanation:

first find the no. Of moles of H2SO4

=  75/98.1

= 0.7645

Next step

In on mole of H2SO4 the no.of oxygen atom is 4.

1 H2SO4 : 4 O

0.7645  : x                     x= 0.7645x4= 3.0581

next multiply avogadros constant

3.0581 x 6.022× 10^23 =1.84x10^24

Mass present in 1 gram of mole substance is called molar mass. Molar mass is calculated by: dividing the mass of the compound in grams by the number of moles present in the substances.

The correct answer is:

option B. 1.84 × 10²⁴

Given,

1.The moles of sulfuric acid can be calculated by

M = m ÷ n

where M is molar mass, m is mass and n moles.

moles of sulfuric acid = mass ÷ molar mass

= 75 g ÷ 98.1 g/mol  

=0.7645 moles

Hence moles of sulfuric acid present is 0.7645 moles.

2. 1 mole of sulfuric acid = 4 oxygen atoms.

Then, 0.7645 moles of sulfuric will contain: 0.7645 × 4 = 3.0581 atoms of oxygen

3. Oxygen atoms present in 75.0 g of H₂SO₄ will be calculated by multiplying it with Avogadro's constant:

= 3.0581 x 6.022× 10²³

= 1.84x10²⁴

Therefore, 1.84 × 10²⁴ oxygen atoms will be found in 75.0 g of H₂SO₄.

To learn more about moles follow the given link:

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Answer:

They can use man made materials or they can also have designed areas that people can’t go into

Explanation:

Answer:

The correct option is;

Cylinder A contains a gas that has a temperature closest to absolute zero

Explanation:

From the kinetic theory of gases, the average speed of a gaseous molecule is found from the following equation;

[tex]v_{rms} = \sqrt{\frac{3\cdot R \cdot T}{MW} }[/tex]

Where:

[tex]v_{rms}[/tex] = rms speed which is the square root of the average of the velocities of the gas molecules squared which is used in place of the average of the gas molecules as the sum of the velocities of all the gas molecules in the cylinder is zero

R = Universal gas constant = 8.3145 J/(mol·K)

MW = Molecular weight of the gas

Hence where we have;

[tex]v_{rmsA}[/tex] = Average velocity of gas A = 0.0000001 m/s

[tex]v_{rmsB}[/tex] = Average velocity of gas B = 0.3 m/s

Since, R and MW are constant for the gas in cylinder A constant, therefore, as [tex]v_{rmsA}[/tex] ≈ 0 m/s, the temperature, [tex]T_A[/tex], of gas A is closest to absolute zero.

Answer:

1. carboxylic acid

2. ether

3. ester

4. aldehyde

5. ketone

6. amine

7. alcohol

Explanation:

Know the functional groups. If you would like to learn them, let me know.

- Hope that helps! Please let me know if you need further explanation.

Answer:

I actually have no idea

Explanation:

Sorry my man

Answer:

Explanation:

generator

Answer:

sunlight

Explanation:

Answer:

An internal combustion engine is a heat engine in which the combustion of a fuel occurs with an oxidizer in a combustion chamber. The force of combustion is converted into mechanical energy through the use of levers and gears. The by products of combustion include energy, water vapor, carbon dioxide (CO2), nitric oxide (NO), nitrogen dioxide (NO2), and carbon monoxide (CO). The two primary drawbacks to the internal combustion engine are the primary energy source is non-renewable (fossil fuels) and the by products can have damaging effects on the environment.

Explanation:

Answer:

b calcium

Explanation:

Answer:

c

Explanation:

the map shows water near the factories go into moth lake so all of the waist will end up there

Answer: A) Nebular Theory

Explanation:

Answer:

A)

Explanation:

As the frequency of the radiation increases further, into the visible light spectrum, it can cause electronic transitions in atoms and molecules, leading to the emission of light and other optical effects.

Electromagnetic radiation is a form of energy that travels through space in the form of waves, without the need for a medium to propagate. It is characterized by oscillating electric and magnetic fields that are perpendicular to each other and the direction of propagation.

At low frequencies, such as radio waves and microwaves, the radiation typically only causes heating of the matter, as it transfers energy to the molecules in the material.

At higher frequencies, such as infrared radiation, the radiation can cause vibrations in the atoms and molecules of matter, leading to heating and thermal effects.

Thus, When matter absorbs electromagnetic radiation, the effects that it has on the matter depend on the frequency of the radiation.

To learn more about the electromagnetic radiation, follow the link:

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Answer: 8.1 days

Explanation:

Expression for rate law for first order kinetics is given by:

[tex]t=\frac{2.303}{k}\log\frac{a}{a-x}[/tex]

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant = x

a - x = amount left after decay process= [tex]\frac{x}{4}[/tex] 

a) to find rate constant

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

[tex]t_{\frac{1}{2}}=\frac{0.693}{k}[/tex]

[tex]k=\frac{0.693}{2.7days}=0.257days^{-1}[/tex]

b) for completion of one fourth of reaction

[tex]t=\frac{2.303}{k}\log\frac{x}{\frac{x}{4}}[/tex]

[tex]t=\frac{2.303}{0.257}\log{4}[/tex]

[tex]t=8.1days[/tex]

Thus after 8.1 days , one fourth of original amount will remain.

The student cannot prove that if the compound is ionic or covalent because not all ionic compounds dissolves in water. Some ionic compounds have higher lattice energy results in lower solubility. Thus, option D could be correct.

Ionic compounds are formed between metals and non metals. Metals are electron rich and they easily donate electrons to the non-metals. Non-metals are generally electronegative and they easily gains electrons from the metals.

Donating electrons make metals acquire positive charge and the non-metals acquire a  negative charge. This charge separation make the compound possess a permanent dipole moment. Which make them easily soluble in water by ion-dipole interaction.

However, some ionic compounds have very strong ionic bonds and their binding energy will be greater so that cannot be easily dissolved in water. For example, AgCl. Therefore, we cannot predict weather the compound is ionic or not by simply noting it solubility in water.

To find more on ionic compounds, refer here:

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Answers:

in the wild of over 100 years,...

A captive individual lived at least 255 years!

Explanation:

The giant Galapagos tortoises (Chelonoidis nigra) are famous because this species was observed by Darwin during his travel. This species is native from the Galapagos Islands and currently is in danger of extinction. Galapagos tortoises are recognized as one of the longest vertebrates. In this regard, it is worthy to note that a giant tortoise named Harriet lived 255 years, this specimen was in the Australian Zoo.

Answer:

b

Explanation:

i read this once and remember,trust me!

Answer:

20 is b and 21 is a.

Answer:

C. equal to, elements, products

Explanation:

I took a quiz and it said this was right

Answer:

A, B, D, E

Explanation:

correct on Edge 2020

Answer:

1) are isomers of each other

2) are isomers of each other

4) are both hydrocarbons

5) have same number of each kind of atom

Explanation: edg 2020

Answer:

Renewable energy

Explanation:

on the other hand, typically emits less CO2 than fossil fuels. In fact, renewables like solar and wind power—apart from construction and maintenance—don't emit any CO2 at all. With renewable energy, you can breathe easier, stay cooler, and create a more comfortable world for generations to come.

Answer:

renewable energy comes from natural resources that can be replenished or replaced during an average human lifetime ; eg, Hydro, solar, wind etc.

fossil fuels can take thousands or even millions of years to naturally replenish; eg, natural gas, coal, oil.

Answer:

0.57 mol/L

Explanation:

Molarity (M) is defined as the number of moles of solute per liter of solution (moles/Liter).

Molarity  =  [tex]\frac{moles of solute}{liters of solution}[/tex] or Moles  =  molarity × litres

so, the mass of Nacl in 1 mol is 58.44 g,

Moles of NaCl = 50.0g x 1 mole NaCl / 58.44 g

                          = 0.855 mol NaCl

Moles  =  molarity × litres

0.855 = 1.5 M x L

L = 0.57 mol/L

Hence, 0.57 mol/L can be prepared from 50.0 g of NaCl.

Answer:

Hydrogen has the highest rate of effusion