Someone pls help me I will make you brain

Someone Pls Help Me I Will Make You Brain

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Answer 1

Answer:

The answer is true. ozone in the stratosphere is a toxic pollutant that can cause tightness or shortness of breath.


Related Questions

I need help pleaseee

Answers

the answer is d!!!!!!!

Calculate the number of moles of NH3 formed by the reaction of 2 moles of N2 and 2 moles of H2,N2(g) + 3H2(g) forms 2NH3(g)

Answers

Answer:

we have to find the number of moles of NH₃ formed by reaction of 2 moles of N₂ and 2 moles of H₂. ... ∴ 2 moles of hydrogen will give = 1.33 moles of ammonia. therefore the no of moles of ammonia after the reaction would be 1.33 moles

How does a balanced chemical equation demonstrate the Law of Conservation of Mass? (1 point)

O it shows that only physical changes follow the Law of Conservation of Mass

O it shows that no atoms have been gained or lost during the reaction

O it shows that the properties of the elements stay the same after the reaction

O it shows that all compounds remain bonded after the reaction

Answers

Explanation:

A balanced equation demonstrates the conservation of mass by having the same number of each type of atom on both sides of the arrow. enjoy

Answer:

It show that no atoms have been gained or lost during reaction

Explanation:

how should the mass of copper metal at the end of the reactions compare to the starting mass of copper?

Answers

Answer:

The produced mass of copper should equal the starting mass of copper.

A scientist introduces an unknown type of particle into a cathode ray tube. The unknown particles travel in the same direction as the cathode ray. Which of the following statements is true?



A. The charge of the unknown particles is positive.
B. The charge of the unknown particles is negative.
C. The charge of the unknown particles is neutral.

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Answer: B

Explanation:

Which of the following are directly proportional? *
volume and temperature
pressure and volume
pressure and temperature

Answers

Volume and temperature.

cân bằng phương trình Al + HCl → AlCl3 + H2­

Answers

Answer:

Explanation:

Balance the reaction of Al + HCl = AlCl3 + H2 using this chemical equation balancer!

It takes 40 mL of 0.10 M of hydrochloric acid (HCl) to neutralize 50 mL of sodium hydroxide (NaOH) for the following chemical reaction

HCl + NaOH → NaCl + H2O

The concentration of sodium hydroxide is _____.
0.125 M
0.08 M
0.10 M
0.04 M

Answers

Answer:

0.08 M

Explanation:

here...

1. water and a salt

2. Magnesium hydroxide reacts with HCl to produce a solution that is neutral.

3. titrant

4. 0.08 M

5. indicator

{quizlet: captncrun}

The concentration of sodium hydroxide is 0.08 M. The correct option is the second option 0.08 M

From the question,

We are to determine the concentration of sodium hydroxide

The given reaction is

HCl + NaOH → NaCl + H₂O

This means

1 mole of HCl is required to completely neutralize 1 mole of NaOH

To determine the concentration of sodium hydroxide,

We will use the formula

[tex]\frac{C_{A}V_{A} }{C_{B}V_{B}} = \frac{n_{A}}{n_{B}}[/tex]

Where

[tex]C_{A}[/tex] is the concentration of acid

[tex]C_{B}[/tex] is the concentration of base

[tex]V_{A}[/tex] is the volume of acid

[tex]V_{B}[/tex] is the volume of base

[tex]n_{A}[/tex] is the mole ratio of acid

[tex]n_{B}[/tex] is the mole ratio of base

From the give information

[tex]C_{A} = 0.10 \ M[/tex]

[tex]V_{A} = 40 \ mL[/tex]

[tex]V_{B} = 50 \ mL[/tex]

From the balanced chemical equation

[tex]n_{A} = 1[/tex]

[tex]n_{B} = 1[/tex]

Putting the above parameters into the formula, we get

[tex]\frac{0.10 \times 40}{C_{B} \times 50} = \frac{1}{1}[/tex]

Then

[tex]C_{B} \times 50 = 0.10 \times 40[/tex]

∴ [tex]C_{B}=\frac{0.1 \times 40}{50}[/tex]

[tex]C_{B}=\frac{4}{50}[/tex]

[tex]C_{B}=0.08[/tex]

Hence, the concentration of sodium hydroxide is 0.08 M. The correct option is the second option 0.08 M

Learn more here: https://brainly.com/question/14753195

We are the family members and love to
react with potassium (K).
Who we are?

Answers

Answer:wth does this even mean

Explanation:

All of the halogens react with potassium (K)

(WORD BANK - Neap, gravitational, greatest, moon, high, Spring, low, Sun)
Ocean tides are caused by the ______________ pull of the _______ and the _______. The moon has the __________ effect on the tides. When the Sun, moon and earth are in a straight line, we
have __________ tides. When the Sun, moon and earth are at right angles we have _________
tides. Spring tides are especially _________ tides while neap tides are especially _________tides.

Answers

gravitational , moon , sun , greatest , spring , neap , high , low

Answer:

Ocean tides are caused by the gravitational pull of the moon and the sun. The moon has the greatest effect on the tides. When the Sun, moon, and earth are in a straight line, we have Neap tides. When the Sun, moon, and earth are at right angles we have spring tides. Spring tides are especially high tides while neap tides are especially low tides.

Explanation:

brainliest please. . . <3

the smallest unit of matter that retains the properties of that matter is

Answers

Answer:

here is your answer.

Explanation:

atom.

thanks for asking:)

A 10.0 cm sample of copper has a mass of 89.6 g. What is the density of copper?​

Answers

Answer:

19.3 g/cm3

Explanation:

plz give branliest

what if water didnt have a negative charge?

Answers

Answer:

Explanation:

It would be positively charge

It would be positively charged

how does a phenol red-containing solution look if co2 level is low?

Answers

Answer:

The variables to be examined in relation to carbon dioxide use are the amount of light exposure and amount of dissolved CO2. Phenol red is yellow/orange under acidic conditions, that is when the pH of the solution is less than 7 (e.g. pH = 6). This occurs when the concentration of CO2 is high.

Explanation:

is this correct

A phenol red-containing solution with low CO2 level will appear red.

Phenol red is a substance that serves as an indicator. It changes in colouration in response to the acidity or alkalinity of solutions.

In acidic solutions, phenol red turns yellow while the colour is red in basic solution.

Solutions with high CO2 levels are acidic while those with little to no CO2 concentrations are basic.

Thus, in a low CO2 solution, phenol red will turn red and the solution will generally appear red.

More on acid/base indicators can be found here: https://brainly.com/question/16284171?referrer=searchResults

What is water supply ?

Answers

Answer:

a water suppley is water that pepople buy to dreak and ues

Explanation:

The reaction of C2H4 +Cl2 is what type of reaction.

Answers

Answer:

C2H4(g) + Cl2(g)→C2H4Cl2(g)

This is an example of synthesis reaction, when compounds are joined together.

If a laser operating at a wavelength of 488 nm and a power of 123.0 mW is turned on for 18.73 minutes, how many photons has it emitted?

Answers

Answer:

3.39e+20

Explanation:

What is patagium and what do you meant by prehensile tail

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The patagium (plural: patagia) is a membranous structure that assists an animal in gliding or flight. The structure is found in living and extinct groups of animals including bats, birds, some dromaeosaurs, pterosaurs, gliding mammals, some flying lizards, and flying frogs.

A prehensile tail is the tail of an animal that has adapted to grasp or hold objects. Fully prehensile tails can be used to hold and manipulate objects, and in particular to aid arboreal creatures in finding and eating food in the trees.

Answer:

patagium in American English

1. a wing membrane, as of a bat. 2. the extensible fold of skin of certain insects or of a gliding mammal or reptile, as a flying squirrel.

Explanation:

A prehensile tail pertains to the tail of certain animals that enable the latter to grasp or hold objects. ... A fully prehensile tail is one in which the animal can fully hold on to and manipulate an object with its tail.

13. An atom has 8 protons, 8 electrons, and 7 neutrons. What is the charge of the
atom and what type of ion is it?

Answers

Answer:

oxygen

Explanation:

Answer pls ASAPPP 50 pointsss!!

Answers

Answer:

There should only be one chemical reaction, this is because toasting the bread is not only using heat, but you cannot untoast the bread, and also theres a reaction with the amino acids and sugar in bread when it's cooked. I hope this helps you! :)

Answer:

One

Explanation:

 One Chemical changes-It was when he toasted the bread. The heat changed the bread so that it has the crust on the outside

at sea level, the average height of mercury in a barometer is

Answers

Answer: 760 mm

Explanation:

At sea level, a mercury column will rise a distance of 760 mm. At higher altitudes, the atmospheric pressure is decreased and so the column of mercury will not rise as high.

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How long does it take Earth to make one rotation on its axis?

12 hours

48 hours

24 hours

Please answer ASAP

Answers

Answer:

24 hours

Explanation:

There are 24 hours in a day cause that is how long for the earth to spin on its axis

Answer:

24 hours

Explanation:

The time it takes Earth to rotate so the sun appears in the same position in the sky, known as a solar day, is 24 hours. However, the time it takes Earth to complete one full rotation on its axis with respect to distant stars is actually 23 hours 56 minutes 4.091 seconds, known as a sidereal day.

What is the order of decreasing ionization energy?
1. cesium, barium, lead
2. barium, lead, cesium
3. lead, barium, cesium
4. barium, cesium, lead
5. lead, cesium, barium
6. cesium, lead, barium

Answers

your answer would be 3!!

Which of the following would not be made in a ribosome?
O enzymes
O cholesterol
O antibodies
O water-soluble hormones

Answers

Answer:

cholesterol(lipid)

Explanation:

Ribosomes are called PROTEIN FACTORY

Ribosomes are involved in protein synthesis

Any metabolite or substance protein in nature can be synthesized on ribosomes

enzymes are protein in  natureantibodies are y shaped protective proteinswater soluble hormones are also amine or protein in nature

Since they are protein in nature hence can be synthesized on ribosome.

WRONG OPTIONS:

CHOLESTEROL IS LIPID IN NATURE

LIPIDS ARE NOT proteins and cannot be SYNTHESIZED ON RIBOSOME

LIVER DOES THIS FUNTION OF CHLESTEROL SYNTHESIS.

When the skydiver is falling at a constant velocity after the parachute is open, what is their acceleration?

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Answer:

Once the parachute is opened, the air resistance overwhelms the downward force of gravity. The net force and the acceleration on the falling skydiver is upward. ... The skydiver thus slows down. As the speed decreases, the amount of air resistance also decreases until once more the skydiver reaches a terminal velocity.

When the skydiver is falling at a constant velocity after the parachute is open, acceleration is zero.

The acceleration of the skydiver will be zero shortly after the parachute opens, but we can not call it as “acceleration due to gravity”.It's the acceleration due to gravity and air resistance together, and the forces cancel each other out to give an acceleration of zero.Once the parachute is opened, the air resistance overwhelms the downward force of gravity. The net force and the acceleration on the falling skydiver is upward.

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What metal is highly reactive and bonds easily with other elements

Answers

Answer: alkali metal

Explanation: ONLY if that is in you suggestions

if not i think this is right

Which scientist is credited with developing the fist scientific atomic theory

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Answer:

German chemist G.E. Stahl

Which of the following is the best definition of a chemical change?

A. All of these
B. The ability of something to undergo a change or reaction.
C. Something that can be observed or measured without changing the identity of the substance.
D. A change that alters the identity, or chemical composition, of a substance at the atomic level. ​

Answers

Answer:A

Explanation:

standardization is the process of titrating a solution prepared from

Answers

Standardization is the process of titrating a solution that is prepared from: a carefully measured solid mass to accurately find the concentration of titrant.

What is titration?

Titration is also known as volumetric analysis (titrimetry) and it can be defined as a chemical process in which a solution of known concentration (titrant) is carefully and slowly added to another solution of unknown concentration, so as to determine the concentration or quantity of the analyte.

Similarly, a process referred to as standardization is used to titrate a solution that is prepared from a carefully measured solid mass to accurately find the concentration of titrant.

Read more on titration here: brainly.com/question/24584140

Because only certain size electron orbits are allowable, the frequency and energy of the electron is ___ .

Answers

Because only certain size electron orbits are allowable, the frequency and energy of the electron is quantized

According to the Bohr model of the atom, an electron moves from a lower to a higher energy level when it absorbs energy. This energy is released when the electron returns to ground state.

According to the Bohr model, only certain size electron orbits are allowable hence the frequency and energy of the electron is quantized.

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