Photosynthesis reactions in green plants use carbon dioxide and water to produce glucose (C6H12O6) and oxygen. A plant has 88.0 g of carbon dioxide and 64.0 g of water available for photosynthesis

Answer:

Watch Naruto that's the answer

Explanation:

Answer: B.) -12.4

Explanation: This is because the sign of heat transfer is determined by the system's perspective. In this case, the system is releasing heat to the surroundings, which means that heat is flowing out of the system, making the heat transfer negative. The magnitude of the heat transfer is 12.4 J.

Answer:

true

Explanation:

Answer:

The balanced chemical equation for the decomposition of solid lithium chloride into chlorine gas and solid lithium can be written as:

2LiCl(s) → 2Li(s) + Cl2(g)

This equation shows that for every 2 moles of solid lithium chloride, 2 moles of solid lithium and 1 mole of chlorine gas are produced. The equation is balanced because the number of atoms of each element is the same on both sides of the equation. There are 2 lithium atoms, 2 chlorine atoms, and 0 oxygen atoms on both the reactant and product side of the equation.

The United States experienced a decrease in the real GDP, high inflation, and arising unemployment rate.

The United States appeared to be entering a recession.A recession is a decline in economic activity, characterized by declining GDP, high unemployment rates, and increased unemployment benefits. Economic analysts and the media commonly use a two-quarter consecutive decline in real GDP as a definition of a recession.

The United States is considered to have entered a recession in the 1970s, which was characterized by an energy crisis, inflation, and recession. However, by the end of the decade, the economy had improved, and it entered into the 1980s with a strong economic performance.

The 1970s were a period of high inflation, low growth, and an oil crisis, which had a significant impact on the United States economy. Therefore, it can be concluded that The United States was in the middle of an economic boom before the 1970s recession and entered a recession in the 1970s due to a decrease in the real GDP, high inflation, and arising unemployment rate.

For more such questions on inflation visit;

https://brainly.com/question/28061405

#SPJ8

kilojoules of energy have to be removed to freeze 500 grams of water when it starts at 65 C 153.7kJ.

The strength we get from food and drinks is measured in kilojoules (kJ). this is the metric term for calories. Kilojoules and energy represent the equal issue. One calorie is about four kilos of calorie content material is frequently given in kcals, which is short for kilocalories, and additionally in kJ, which is brief for kilojoules.

A kilocalorie is another word for what is normally called a calorie, so 1,000 calories can be written as 1,000kcals. Kilojoules are the metric measurement of energy.

1200 kilojoules (kJ) are equal to 286. eight energy (kcal). The formula for converting kilojoules to calories is E (Cal) = E (kJ) x 0.239, and the reverse calculation is E (kJ) = E (Cal) / four.184. In other words, multiply the kJ price by means of zero.239 to get calories, and divide the kcal fee by way of four.184 to get kilojoules.

Learn more about kilojoules  here:

https://brainly.com/question/27957293

#SPJ9

Using Newton's second law, the car is experiencing a net force parallel to the banked curve such that

\(mg \sin(\theta) = \dfrac{mv^2}r \implies \sin(\theta) = \dfrac{v^2}{rg}\)

where \(v\) is the tangential speed of the car and \(r\) is the radius of the curve. Solve for \(\theta\) :

\(\sin(\theta) = \dfrac{\left(61.0\frac{\rm m}{\rm s}\right)^2}{(1860\,\mathrm m)g} \approx 0.204 \implies \theta = \sin^{-1}(0.204) \approx \boxed{11.8^\circ}\)

Answer:

Aqueous solutions of acids are electrolytes, meaning that they conduct electrical current. Some acids are strong electrolytes because they ionize completely in water, yielding a great many ions. Other acids are weak electrolytes that exist primarily in a non-ionized form when dissolved in water.

Acids have a sour taste. Lemons, vinegar, and sour candies all contain acids.

Acids change the color of certain acid-base indicates. Two common indicators are litmus and phenolphthalein. Blue litmus turns red in the presence of an acid, while phenolphthalein turns colorless.

Explanation:

Hope this helps

Our current understanding of the atom is based on Dalton's early 19th-century idea of atomism, which was developed through meteorological investigations. John Dalton is well recognised for developing the atomism hypothesis.

When British chemist John Dalton realised that compounds usually had whole number ratios of atoms, he provided the first modern proof for the existence of atoms. Because of this, it's H2O rather than H20. A novel state of matter has been demonstrated by scientists: an electron circles a nucleus at a considerable distance while being bonded to several other atoms inside the orbit. The Bose-Einstein condensate's electron (blue) orbits the nucleus (red), and the orbit encompasses a large number of other atoms (green). Chemistry's fundamental building component is an atom. It is the lowest fraction of substance into which electrically charged particles cannot be released.

learn more about atoms here:

https://brainly.com/question/13654549

#SPJ4

A 30.5 gram sample of glucose contains 6.1×10²³ atoms of carbon.

Firstly we will calculate the number of moles and then use Avogadro's constant to find the number of atoms.

So, the number of moles of glucose will be calculated by the formula -

Number of moles = mass ÷ molar mass

Number of moles = 30.5/180

Performing division on Right Hand Side of the equation

Number of moles = 0.169 moles

As we know, one mole of any molecule contains Avogadro's number of atoms.

So, 0.169 moles of glucose will contain 6.02×10²³ atoms

Now, 1 mole of glucose will contain 6 carbon atoms. Thus, number of carbon atoms = 6.02×10²³×6×0.169

Number of carbon atoms = 6.1×10²³

Thus, there are 6.1×10²³ atoms.

Learn more about atoms -

https://brainly.com/question/17545314

#SPJ4

ANSWER

EXPLANATION

Gas pressures are experienced in the following;

Motor tyres

Lungs

In tyre, flat tire takes up less space than an inflated tyre

Lungs expand as they fill with air. Exhaling decreases the volume of the lungs

The potential energy, Pe, of the Reactants, is 20 kJ

The potential energy, Pe, of the Products is 50 kJ

The potential energy, Pe, of the Activated Complex without a catalyst is 70 kJ

The potential energy, Pe, of the Activated Complex with a catalyst is 55 kJ

The activation energy, Ae, of the Foward Reaction with a catalyst is +35 kJ

The activation energy, Ae, of the Foward Reaction with no catalyst +50 kJ

The activation energy, Ae, of the Reverse Reaction with a catalyst -35 kJ

The minimum amount of energy input required by a reactive molecule to transform into a product is known as activation energy.

It can also be defined as the minimum energy required to energize or activate molecules or atoms in order for them to engage in a chemical reaction or transformation of reactants to products.

The symbol for activation energy is Ea.

The activation energy of a reaction is influenced by two things.

1. The nature of the reactant

2. the effect of the catalyst

Learn more about activation energy at: https://brainly.com/question/1380484

#SPJ1

1. Examples of solids, liquids, and gases found in a home

Solids: books, furniture, toys

Liquids: water, juice, shampoo

Gases: air, natural gas, propane

2. The human body contains solids, liquids, and gases. Solids include bones, muscles, and organs. Liquids include blood, saliva, and urine. Gases include air in the lungs and dissolved gases in the bloodstream. The body is mostly made up of liquids, as they make up a large percentage of its overall volume.

3. If you needed to remove the water from a sample of blood to study the solids that remained, you could use a process such as evaporation or freeze-drying. Evaporation involves heating the sample to allow the water to evaporate, leaving behind the solids. Freeze-drying involves freezing the sample and then removing the water under vacuum, leaving behind a dry solid.

4. Some metals that could be found within the human body include iron, zinc, and copper. These metals are commonly found in foods such as meat, seafood, nuts, and whole grains. Other metals such as calcium, magnesium, and potassium are also important for the body and are found in a variety of foods.

To know more about solids here

https://brainly.com/question/21500863

#SPJ1

Answer:

True

Explanation:

I learned about it a few years ago

Answer:

When the light energy from sunlight hits matter, heat energy is formed

Answer:

A

Explanation:

when light energy hit matter heat energy formed

The empirical formula is KCO2

Explanation:

As with all these problems, we assume a

100

⋅

g

mass of unknown compound, and then we work out the molar quantity:

Moles of potassium

=

47.0

⋅

g

39.10

⋅

g

⋅

m

o

l

−

1

=

1.20

⋅

m

o

l

Moles of carbon

=

14.5

⋅

g

12.011

⋅

g

⋅

m

o

l

−

1

=

1.21

⋅

m

o

l

Moles of oxygen

=

38.5

⋅

g

16.0

⋅

g

⋅

m

o

l

−

1

=

2.41

⋅

m

o

l

We divide thru by the smallest molar quantity to give the empirical formula:

K

C

O

2

.

Now the molecular formula is always a whole number of the empirical formula:

i.e.

molecular formula

=

n

×

empirical formula

And thus with the molecular mass, we can solve for

n

.

166.2

⋅

g

⋅

m

o

l

−

1

=

n

×

(

39.1

+

12.011

+

2

×

16.00

)

⋅

g

⋅

m

o

l

−

1

166.2

⋅

g

⋅

m

o

l

−

1

=

n

×

(

83.1

)

⋅

g

⋅

m

o

l

−

1

Clearly,

n

=

2

, and the

molecular formula

=

K

2

C

2

O

4

The compound is LIKELY the potassium salt of oxalic acid,

K

+

−

O

(

O

=

)

C

−

C

(

=

O

)

O

−

K

+

, i.e.

potassium oxalate.

Answer linkExplanation:

As with all these problems, we assume a

100

⋅

g

mass of unknown compound, and then we work out the molar quantity:

Moles of potassium

=

47.0

⋅

g

39.10

⋅

g

⋅

m

o

l

−

1

=

1.20

⋅

m

o

l

Moles of carbon

=

14.5

⋅

g

12.011

⋅

g

⋅

m

o

l

−

1

=

1.21

⋅

m

o

l

Moles of oxygen

=

38.5

⋅

g

16.0

⋅

g

⋅

m

o

l

−

1

=

2.41

⋅

m

o

l

We divide thru by the smallest molar quantity to give the empirical formula:

K

C

O

2

.

Now the molecular formula is always a whole number of the empirical formula:

i.e.

molecular formula

=

n

×

empirical formula

And thus with the molecular mass, we can solve for

n

.

166.2

⋅

g

⋅

m

o

l

−

1

=

n

×

(

39.1

+

12.011

+

2

×

16.00

)

⋅

g

⋅

m

o

l

−

1

166.2

⋅

g

⋅

m

o

l

−

1

=

n

×

(

83.1

)

⋅

g

⋅

m

o

l

−

1

Clearly,

n

=

2

, and the

molecular formula

=

K

2

C

2

O

4

The compound is LIKELY the potassium salt of oxalic acid,

K

+

−

O

(

O

=

)

C

−

C

(

=

O

)

O

−

K

+

, i.e.

potassium oxalate.

Answer:

a) What volume will it occupy with 2.60 moles?

V2 = V1 x n2 / n1

V2 = 3.80 x 2.60 / 1.70 = 5.81 L

Answer: V2 = 5.81 L

b) How many moles are in a sample that occupies 1.45 L?

n2 = n1 x V2 / V1 = 1.70 x 1.45 / 3.80 = 0.65 mol

Answer: n2 = 0.65 mol

Explanation:

The volume of the sample that has 2.60 moles and occupies is 5.81 l.

Volume is the space occupied by a three-dimensional object.

The moles of the sample m1 is 1.70

The volume V1 is 3.8 l  

The moles m2 is 2.60

V2 = ?

\(V2 = V1 \times \dfrac{n_2}{n_1} \\\\\\V2 = 3.80 \times \dfrac{2.60}{1.70} = 5.81 \;l\)

Thus, the volume of the sample that has 2.60 moles and occupies is 5.81 l.

Learn more about volume

https://brainly.com/question/1578538

#SPJ2

The initial pH before any titrant is added is 13.46 after adding 5 ml of the titrant is 13.0669.

Titration is a common laboratory technique of quantitative chemical evaluation to decide the attention of a recognized analyte. A reagent, termed the titrant or titrator, is ready as a fashionable answer of regarded concentration and quantity.

1)when 0.0 mL of HBr is added

Given:

M(HBr) = 0.75 M

V(HBr) = 0 mL

M(LiOH) = 0.29 M

V(LiOH) = 25 mL

 mol(HBr) = M(HBr) * V(HBr)

mol(HBr) = 0.75 M * 0 mL = 0 mmol

mol(LiOH) = M(LiOH) * V(LiOH)

mol(LiOH) = 0.29 M * 25 mL = 7.25 mmol

So, we have,

mol(HBr) = 0 mmol

mol(LiOH) = 7.25 mmol

0 mmol of both will react

remaining mol of LiOH = 7.25 mmol

Total volume = 25.0 mL

[OH-]= mol of base remaining / volume

[OH-] = 7.25 mmol/25.0 mL

         = 0.29 M

For pH

pOH = -log [OH-]

     = -log (0.29)

     = 0.5376

PH = 14 - pOH

     = 14 - 0.5376

      = 13.46

2)when 5.0 mL of HBr is added

Given:

M(HBr) = 0.75 M

V(HBr) = 5 mL

M(LiOH) = 0.29 M

V(LiOH) = 25 mL

mol(HBr) = M(HBr) * V(HBr)

mol(HBr) = 0.75 M * 5 mL = 3.75 mmol

mol(LiOH) = M(LiOH) * V(LiOH)

mol(LiOH) = 0.29 M * 25 mL = 7.25 mmol

Now, we have

mol(HBr) = 3.75 mmol

mol(LiOH) = 7.25 mmol

3.75 mmol of both will react

remaining mol of LiOH = 3.5 mmol

Total volume = 30.0 mL

[OH-]= mol of base remaining / volume

[OH-] = 3.5 mmol/30.0 mL

         = 0.1167 M

calculating pH;

pOH = -log [OH-]

= -log (0.1167)

= 0.9331

PH = 14 - pOH

= 14 - 0.9331

= 13.0669

Titration is a way wherein an answer of acknowledged concentration is used to determine the awareness of an unknown answer. typically, the titrant is added from a buret to a recognized amount of the analyte until the response is complete.

Learn more about titration here:- https://brainly.com/question/186765

#SPJ1

Answer:

D

Explanation:

The weight of an object will change if the object is brought farther away from Earth, or placed on a different planet since the force of gravity on the object will change. However, the mass of the object will remain the same regardless of whether the object is on Earth, in outer space, or on the Moon. hope this helps have a good day :)

Moles of Oxygen they took in : C. 2.42

The gas equation can be written  

\(\large{\boxed{\bold{PV=nRT}}}\)

where  

P = pressure, atm  

V = volume, liter  

n = number of moles  

R = gas constant = 0.08205 l.atm / mol K  

T = temperature, Kelvin  

P=1000 kPa

V = 6 L

T = 298 K

moles of Oxygen :

\(\tt n=\dfrac{PV}{RT}\\\\n=\dfrac{1000\times 6}{8.31\times 298}\\\\n=2.42~moles\)

Answer:

Phosphorus(P) and Oxygen(O)=Covalent bond

Chlorine(Cl) and Sodium(Na) = Ionic bond

Silver (Ag) and Silver (Ag)= Metallic bond

Answer:

0.75 liters

Explanation:

1. To ensure accuracy when tracking samples in the laboratory.

2. To maintain confidentiality when identifying individual samples.

Having a unique sample code for each sample is extremely important for laboratory work. It ensures accuracy when tracking samples in the laboratory, as well as maintaining confidentiality when identifying individual samples.

When tracking samples in the laboratory, it is essential to be as accurate as possible. Without a unique sample code, it would be difficult to track the sample from the moment it enters the laboratory until the moment it leaves. A unique sample code allows researchers to easily trace the sample, which helps to prevent mistakes.

In addition, having a unique sample code helps to maintain the confidentiality of the sample and the results. Without a unique sample code, it would be impossible to identify the sample or the results associated with it. This is especially important when dealing with sensitive or confidential samples. Having a unique sample code allows researchers to keep the sample anonymous while still being able to track it and its results.

Overall, having a unique sample code is essential for laboratory work. It helps to ensure accuracy when tracking samples and helps to maintain confidentiality when identifying individual samples. Without a unique sample code, it would be difficult to track samples or keep them confidential.

Learn more about  unique sample code here:

https://brainly.com/question/29330362

#SPJ1

Answer:

Yes you can use alligation for a type of liquid. Explanation: Alligation is an old and practical method of solving arithmetic problems related to mixtures of ingredients.

Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Thus, we can use allegation for any type of liquid.

What is matter?

Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.

Matter is anything that is made up of atoms. Anything around us that can be physically seen and touched are matter. Ice, water and water vapors are example of matter.

Mass can also be represented as number of molecules. We also saw that matter occupy some volume and that volume is measured only in liter. Allegation is a form of liquid that we may utilize. Allegation is a time-tested and useful strategy for tackling mathematical issues involving combinations of elements.

Thus, we can use allegation for any type of liquid.

To learn more about matter, here:

https://brainly.com/question/4562319

#SPJ2

Answer:

Prophase 1

Explanation:

Answer:

The correct answer will be prophase I

Explanation:

During this stage, the genetic code is together and hasn't split yet therefore, the answer is prophase I hopefully this helps!

Explanation:

a metal is an element that readily forms positive ions (cations) and has metallic bonds.

Group two of the periodic table comprises the elements beryllium, magnesium, calcium, strontium, barium and radium. The elements in this group, which are all shiny and silvery-white in appearance, are known as the alkaline earth metals. Like the alkali metals, they form alkaline solutions when they react with water.

2. The pH scale is well used in Chemistry to determine if a solution will be considered to be acidic or basic, and this definition is due to the concentration of protons, which you can also see as H+, and Hydroxide ions, which is also OH-, for concentration, it is usually represented with this symbol []. Now to find out what is the pH of a substance, we can use the pH formula, which is:

pH = -log [H+]

For example we have in question number 1

pH = -log [1*10^-8]

pH = 8

Therefore it will be a basic compound, because the pH scale is divided into below 7 and over 7, <7 = acidic, which also means a high concentration of H+.

>7 = basic, which also means a low concentration of H+

But if we make this simple calculation 7+7 we will have 14, which is the higher number from the pH scale, and this thought when it comes to concentration of ions will be describe as:

1*10^-14 = (1*10^-7) * (1*10^-7)

This is also represented by this equation:

Kw = [H+] * [OH-], where Kw is the constant for pure water

So from this math you realize that if we increase H+, we need to decrease OH-, the same goes for OH-, this is why substances are basic or acids

Now into our question

2. A) if the solution has a concentration of H+ = 1*10^-4, this means that the pH is 4, and 14 (higher value) - 4 = 10, therefore the concentration of OH- must be really low, which is 1*10^-10, or simply 10

B) If the solution has a [H+] = 1*10^-4, the pH will be 4, therefore the solution will be acidic

The mass of the excess reagent remaining after completion of reaction, given that 8 g of magnesium is heated with 8 g of phosphorous is 0.98 g

First, we shall obtain the mass of the excess reagent that reacted. This is shown below:

6Mg + P₄ -> 2Mg₃P₂

From the balanced equation above,

145.8 g of Mg reacted with 124 g of P₄

Therefore,

8 g of Mg will react with = (8 × 124) / 145.8 = 7.02 g of P₄

Finally, we shall obtain the mass of the excess reagent remaining after the reaction. Details below:

Mass of excess reagent, P₄ remaining = Mass given - mass reacted

= 8 - 7.02

= 0.98 g

Thus, the mass of the excess reagent remaining after the reaction is 0.98 g

Learn more about mass of excess reagent:

https://brainly.com/question/29117366

#SPJ1