ANSWER ASAP!!!! PLS HELP

Answer:

using electric cars , Transitioning to energy sources that do not emit greenhouse gases, such as solar, wind, biofuels, and nuclear ☢️

Explanation:

Answer:

Explanation:

in set up A the fresh soil contains carbon (iv) oxide which reacts with lime water to form an insoluble white precipitate of calcium carbonate. In set up B carbon (iv) oxide is not present in the soil since it has been boiled the gas has been expelled. Therefore there is no observable change in B

Answer:

Water is one of the most precious resources the earth provides to mankind. Its use in modern age is manifold. We drink water to satisfy our thirst. We use it for domestic needs, irrigation, industrial use, transportation, power production and waste disposal. Water is universal solvent.

Thanks to our nature; it is very rich in water. About three-fourth of the earth's surface is covered with water. But only a small portion of total water resources is actually available for human use. Majority, about 97.3% is present in oceans and is salty in nature.

The fresh water constitutes only 2.7%. Out of this, inland" surface waters i.e. lakes, rivers, and ponds account for hardly 0.02%. This relatively negligible portion of the earth's water is crucially important to all form of terrestrial and freshwater aquatic life. We get water mainly from three sources;

1 Rain water.

2 Surface water

3 Ground water

Answer: c, and my yt is ChezBeed

Explanation:

The balloon will burst if the volume of the balloon is less than 1.68 L since 8 g of sodium bicarbonate produces 1.68 L of carbon dioxide gas.

The volume of carbon dioxide produced is obtained from the equation below:

[tex]CH_3COOH + NaCO_3 \rightarrow CH_3COONa + H_2O + CO_2 \\ [/tex]

1 mole of sodium bicarbonate reacts with one mole of acetic acid in vinegar to produce 1 mole of carbon dioxide.

The volume of 1 mole of carbon dioxide is 22.4 L

Moles of sodium bicarbonate in 8 g = mass/molar mass

molar mass of sodium bicarbonate = 106 g

moles of sodium bicarbonate = 8/106 = 0.075 moles

Moles of carbon dioxide produced = 0.075 moles

Volume of carbon dioxide = 0.075 × 22.4 = 1.68 L

Therefore, the balloon will burst if the volume of the balloon is less than 1.68 L.

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Answer:

States of Matter

Solid has fixed volume.

Solid has fixed shape.

Solid has high density.

Solids are heavy.

Solid does not flow.

Molecular mass is the total of the atomic masses of all the atoms in the molecule. The minimum molecular mass of the protein is 11,363.64 g/mol.

The percent by mass is the percentage composition of the mass of the solute in the mass of the solution.

As the percent by mass of zinc is 0.579 then in 100 gm of substance 0.579 gm zinc will be present. The molar mass of zinc is 65.38 u. Moles of zinc will be calculated as:

[tex]\begin{aligned} \rm moles &= \rm \dfrac {mass}{molar\; mass}\\\\&= \dfrac{0.579}{65.38}\\\\&= 0.0088\;\rm moles\end{aligned}[/tex]

So, the molecular mass of the protein will be:

[tex]\dfrac{100}{0.0088} = 11,363.64 \;\rm g/mol[/tex]

Therefore, 11,363.64 g/mol is the minimum molecular mass of the protein.

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All these terms describe a mind map detailed graphic , colorful , unordered and creative

The terms that describes a mind map are detailed , as lots of detailing is done using connection symbols

Graphic , they are graphical representation of an information

Colourful , They are colourful as to make it more visually interesting .

Unordered , They information might not be in sequence and so can be called unordered also

Creative , Yes it is creative as it brings out the artist inside you and you think more ideas to make it look more beautiful and understandable .

So All these terms describe a mind map detailed graphic , colorful , unordered and creative.

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Answer:

granulated sugar

Explanation:

the rate of dissolving can be increased by mixing stirring and agitating the

solution. hope this answers your question

Answer:

See below

Explanation:

1)

.897 J / g-C  *  100 gm  * 120 C  = 10764 J    (see how the 'units' cancel out?)

2)  spec heat =   963.6 J / (120 gm (90-80 C) =

                              963.6 / ( 120 * 10) = .803  J / g-C

              from the table,  this is granite

The required mass of argon in given number of atoms of argon is 155.61 grams.

Avogadro's number is the number of atoms which are present in 1 mole of any substance and it is equal to 6.022×10²³.

Relation between the mass and moles of any substance will be represented as:

So, moles of argon will be calculated by using given number of atoms as:

Moles = 2.4×10²⁴ atoms / 6.022×10²³ atoms per mole

Moles = 3.9 moles

Now mass will be:

W = (3.9mol)(39.9g/mol) = 155.61 g

Hence required mass of argon is 155.6g.

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Answer:

move in convection currents

Explanation:

When different parts of the oceans are heated unevenly this causes the water to move in convection currents.

The rate of the reaction is the speed at which the reactants are used to produce the products. An increase in temperature and concentration of the reactant increases the rate of reaction.

The rate of the reaction is the speed at which the products are used to produce products. The rate increases when the concentration of the reactants in a reaction is increased. Also, the smaller grounded pieces of reactants increase the reaction rate as the surface area gets increases.

The rise in temperature and the addition of the catalyst also increases the rate of reaction as temperature and the catalysts increase the chemical reaction by increasing the speed.

When an inhibitor is added to a reaction then the rate of the reaction decreases as they inhibit the formation of the products and block the reaction pathways.

Therefore, the inhibitors decrease the rate of the reaction.

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Answer:

1 Nitrate

2 sulphate

3 ammonium

4 carbonate

5 permanganate

6 phosphate

7 acetate

8 chromate

9 dichromate

10 sulphite

Answer:

answer is 60

Explanation:

Answer:

Double helix

Explanation:

Its like two starcaises intertwined.

Answer:

D

Explanation:

D is the answer had to find out the harder way

The number of molecules of hydrogen will be required to produce 1.60 mol of water are 9.6×10²³.

Stoichiometry of the reaction gives idea about the relative amount of moles of reactants and products present in the given chemical reaction.

Given chemical reaction is:

2H₂ + O₂ → 2H₂O

From the stoichiometry of the reaction,

2 moles of hydrogen = produces 2 mole of water

1.6 moles of hydrogen = produces 1.6 mole of water

As we know that in 1 mole of any substance 6.022×10²³ entities of that substance are present.

In 1.6 mole of H₂ gas = (1.6)(6.022×10²³) = 9.6×10²³ molecules of hydrogens are present.

Hence 9.6×10²³ molecules of hydrogens are present.

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Answer:

c.) riding your bike

Explanation:

Playing chess doesn't require any physical challenges, just mental

While watching basketball, you don't physiclly move

Riding a bike requires physical movement and acceliration

Therefore  C is the correct answer

Avocados and tomatoes were mainly eaten by the Aztecs and Maya.

"Mayans cooking method includes digging a shallow pit, lining it with stones or clay balls.

Avocados and tomatoes were mainly eaten by the Aztecs and Maya, with different types of fruit. Corn was made into a kind of porridge, called atole in Mesoamerica and capita in Inca territory.

Avocados and tomatoes were mainly eaten by the Aztecs and Maya.

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The statement is true because  asphalt in the la brea tar pits  can not be burnt to produce energy henece they are not fossil fuels.

Fossil fuels are those hydrocarbons that are burnt to liberate energy. They include; crude oil, natural gas, coal, etc,

The statement is true because  asphalt in the la brea tar pits  can not be burnt to produce energy henece they are not fossil fuels.

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Answer:

False

Explanation:

The answer is false I just took the test , the other answer is incorrect.

Answer:

Bromine (Br)

Explanation:

Im assuming thats the answer you are looking for since you didnt include any options :,)

Answer:

.59 g

Explanation:

5.6 d / 3.9 d /half life = 1.436 half lives

(1/2)^1.436 = .3696 of original left

.3696 * 1.6 = .59 gm

Answer:

equation

Explanation:

Answer:

it's A

Explanation:

The given element is, fluorine is a non-metal with symbol (F). It is a gas and belongs to the group 17 and period 2.

The atomic number of fluorine = 9

The number of electrons = 9

Answer:

its the first one... sorry for the wait was doing my homework :)

[tex]\huge\bf\maltese{\underline{\red{J0|N}}}\maltese[/tex]

Answer:

Sublimation

Explanation:

An increase in temperature at constant volume will increase the kinetic energy and the distance. Thus, option c is correct.

Gay-Lussac's law is the ideal gas law that defines the direct relation of the temperature to the pressure of the gas at a constant volume.

With an increase in the temperature of the gas, the pressure also rises causing the distance between the particle to expand by the increase in the kinetic energy.

Therefore, option c. the kinetic energy, particle distance, and the pressure increases with tempearture rise.

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This can be solved according to Le C ha.tellors principle

So

Here to increase NO_2

We need to increase the temperature or increase the concentrations of reactants

The addition of N₂O₄(g) to the system would result in an increase of nitrogen dioxide, NO₂.

The balanced equation provided shows the equilibrium between nitrogen dioxide (NO₂) and dinitrogen tetroxide (N₂O₄). According to Le Chatelier's principle, a change in conditions will cause the system to shift in a way that opposes the change. In this case, if N₂O₄ is added to the system, the equilibrium will shift to the right to consume the added N₂O₄ and produce more NO₂.

Based on the given information, the enthalpy change (AH°) for the reaction is 58 kJ. This indicates that the forward reaction (from N₂O₄ to 2NO₂) is endothermic, meaning it requires heat to proceed. Adding N₂O₄ to the system will provide more reactant molecules, increasing the concentration of N₂O₄ and causing the equilibrium to shift towards the products (more NO₂) to minimize the effect of the added N₂O₄.

Therefore, the addition of N₂O₄ to the system will result in an increase in nitrogen dioxide, NO₂, as the equilibrium shifts to the right to restore equilibrium.

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The sample which has the largest volume is 5 grams of aluminum.

Density is the mass of per unit volume.

Given, density of aluminum is 2.7 g.cm

The density of copper is 9. 0 g.cm

Step1: Calculate the volume

a. volume of copper of 1.0 gram

[tex]\dfrac{mass}{density} = \dfrac{1}{9} = 0.112[/tex]

Volume of copper of 5.0 gram

[tex]\dfrac{mass}{density} = \dfrac{5}{9} = 0.55[/tex]

b. aluminum of 1 gram

[tex]\dfrac{1}{2.7} = 0.370[/tex]

Aluminum of 5 gram

[tex]\dfrac{5}{2.7} = 1.851[/tex]

Thus, 5 gram of aluminum has the largest volume.

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