During chemical reactions, in general, the rate of reactions decreases when temperature increases:
1) yes
2) no

Answers

Answer 1

Answer:

b the same like this page provide the best way to go with it the hell are nutrients to

Explanation:

bush administration of jute bags and purses and then a good day to day basis and then we will have the same IP Android app and wanted to let you know that I am a


Related Questions

A sample of unknown gas in a closed container has a temperature of 37oC and a pressure of 2 atm. What will be the pressure if the sample is heated to 127oC?

note: Put your answer up to 1 decimal and the unit, in the blank

Answers

Answer:

hdfcghbjhaiedg

Explanation:

Qué volumen (en metros cúbicos) deberá tener un gas que se encuentra a 3.3 atm en un recipiente cilíndrico de radio de 2.8 m y altura 4.6 m para que la presión final sea de 1.9 atm.

Answers

Answer:

Volumen = 65.199 metro cúbico

Explanation:

Tal como lo conocemos

P1V1 = P2 V2

Aquí

P1 = 1,9 atmósferas

V1 = (pi) * r ^ 2 * h

Sustituyendo los valores dados, obtenemos

V1 = 3.14 * 2.8 * 2.8 * 4.6 = 113.241 metros cúbicos

V2 = por determinar

P2 = 3.3 atmósferas

Sustituyendo los valores dados y derivados en la fórmula principal, obtenemos -

1.9 atm * 113.241 metros cúbicos = 3.3 atm * V2

V2 = 1.9 atm * 113.241 metros cúbicos / 3.3 atm

V2 = 65.199 metro cúbico

How many grams of NaCl are in 1.25 X 1024
molecules of Naci? Use one decimal place

Answers

Answer:

121.1g

Explanation:

First, we need to convert the number of molecules of NaCl to moles (n) by dividing by Avagadro number

That is, n = number of molecules ÷ 6.02 × 10²³

n = 1.25 X 10²⁴ ÷ 6.02 × 10²³

n = 1.25/6.02 × 10^ (24-23)

n = 0.207 × 10¹

n = 2.07moles

Using the formula; mole = mass ÷ molar mass

Molar mass of NaCl = 23 + 35.5 = 58.5g/mol

mass = molar mass × mole

mass = 58.5 × 2.07

mass = 121.1g

the tissue which continually forms new cells in plants​

Answers

Answer:

Meristematic Tissues. Tissues where cells are constantly dividing are called meristems or meristematic tissues. These regions produce new cells.

Explanation:

thank me later

What is the new concentration of a solution of CaSO3 if 10.0 mL of a 2.0 M CaSO3 solution is diluted to 100 ml?

Answers

Answer: The new concentration of a solution of [tex]CaSO_{3}[/tex] is 0.2 M 10.0 mL of a 2.0 M [tex]CaSO_{3}[/tex] solution is diluted to 100 mL.

Explanation:

Given: [tex]V_{1}[/tex] = 10.0 mL,      [tex]M_{1}[/tex] = 2.0 M

[tex]V_{2}[/tex] = 100 mL,           [tex]M_{2}[/tex] = ?

Formula used to calculate the new concentration is as follows.

[tex]M_{1}V_{1} = M_{2}V_{2}[/tex]

Substitute the values into above formula as follows.

[tex]M_{1}V_{1} = M_{2}V_{2}\\10.0 mL \times 2.0 M = M_{2} \times 100 mL\\M_{2} = 0.2 M[/tex]

Thus, we can conclude that the new concentration of a solution of [tex]CaSO_{3}[/tex] is 0.2 M 10.0 mL of a 2.0 M [tex]CaSO_{3}[/tex] solution is diluted to 100 mL.

Thermal energy is a measure of the __________ of particles of matter. *
(subject is science I just cant change it right now)

Answers

Thermal energy measures the total kinetic energy of the particles in a substance.

A good year blimp (a huge airship) is filled to a
volume of 1,800L at a temperature of 35°C. As
the weather changed the blimp is then cooled
at constant pressure to a temperature of -46°C.
What is the final volume of the blimp?

Answers

Answer:

V₂ = 1326.62 L

Explanation:

Given that,

Initial volume, V₁ = 1800 L

Initial temperature, T₁ = 35°C = 308 K

Final temperature, T₂ = -46°C = 227 K

We need to find the final volume of the blimp. The relation between volume and temperature is given by :

[tex]\dfrac{V_1}{V_2}=\dfrac{T_1}{T_2}\\\\V_2=\dfrac{V_1T_2}{T_1}\\\\V_2=\dfrac{1800\times 227}{308}\\\\V_2=1326.62\ L[/tex]

So, the final volume of the blimp is 1326.62 L.

Describe you would obtain a sample of lead via electrolysis

Answers

Answer: Electrolysis is defined as the process by which electrolyte allows electric current to pass through it and is decomposed in the process.

Explanation:

Substances that allow the passage of electric current are known as conductors. Examples of conductors are metals, graphites. Metals are good conductors of electricity of which an example is LEAD.

Lead is a metal which can be extracted through the process of electrolysis. A substance in solution or liquid state like lead (II) bromide which allows electric current to pass through it and at the same time decompose by it is known as an ELECTROLYTE.

In the electrolysis of lead (II) bromide to obtain Lead,the electrolyte ionize into positive and negative ions. The positive ions migrate to the cathode and are known as captions. The negative ions migrate to the anode and are known as anions.

--> At the CATHODE: Pb2+ gains electrons and Lead is deposited

Pb2+(aq) + 2e -----> Pb(s)

--> At the anode: Br- gives up electrons and is liberated as bromine vapour.

2Br- (aq) ------> Br2(g) + 2e.

If anyone could answer this that would be great! Will mark brainliest!

Answers

Answer: I think it's 1 ATM and 0 F

Explanation:

How does the overall charge of oxygen of -16 compare to the overall charge of oxygen -17 and oxygen -18?

Answers

Answer:

-2

The charge on an oxygen ion is -2. An oxygen atoms contain six electrons in its valence electron shell.

Explanation:

Identify each statement below as an example of science or pseudoscience. Magnets can cure arthritis.

Answers

Answer:

pseudoscience

Explanation:

A pseudoscience may be defined as certain beliefs and statements or practices that are mistakenly regarded as a practice that is based on scientific method. These practices are claimed and thought to be factual as well as scientific, but they are incompatible with any scientific method.

One such pseudoscience is the belief that magnets can cure arthritis. It is a common belief that magnet therapy cab ease and provide a relief from the arthritis pain but scientific studies have confirmed that such treatments are ineffective for the arthritis pains and problems.

What is the percent by volume of 12.5 mL of ethanol in 250 mL of water?
3%
5%
4%
6%

Answers

The answer for your question is 5%

What is the molar mass of H3PO4?
(Molar mass of H = 1.0079 g/mol; P = 30.974 g/mol; O = 15.999 g/mol)
72.98 g/mol
O 78.22 g/mol
88.24 g/mol
97.99 g/mol

Answers

Answer:

Molar mass of H3PO4  = 97.99 g/mol (Approx.)

Explanation:

Find:

Molar mass of H3PO4

Given;

Molar mass of H = 1.0079 g/mol

Molar mass of P = 30.974 g/mol

Molar mass of O = 15.999 g/mol

Computation:

Molar mass of H3PO4  = (1.0079)(3) + 30.974 + 15.999(4)

Molar mass of H3PO4  = 3.0237 + 30.974 + 63.996

Molar mass of H3PO4  = 97.9937

Molar mass of H3PO4  = 97.99 g/mol (Approx.)

Answer:

The above answer is correct

Explanation:

I took the test

Balancing equations helps please !!

Answers

Explanation:

3. 2AlBr3 + 3k2SO4----------> 6KBr + Al2(SO4)3

stay safe healthy and happy.

what type of heat transfer when you get warm standing infront a fireplace,explain your reasoning​

Answers

Answer:

Radiation refers to the emission of energy in rays or waves. Heat moves through space as energy waves. It is the type of heat one feels when sitting in front of a fireplace.

Explanation:

Where does much of our history of Precambrian rocks come from? fossils on the rock surface ores mined from shields ash taken from volcanoes trenches on the sea floor

Answers

Answer:

Ores mined from shields.

Explanation:

Ores mined from shields are the source from which we get the history of Precambrian rocks. The Ores from shield experience the Precambrian era so that's why its rocks provides information about that era. The Precambrian supereon is the division of the geological time scale which is the first and longest stage in the history of the Earth which also includes the Hádic, Archaic and Proterozoic eons.

container has 3 moles of gas with a volume of 60 liters and at a temperature of 250 K, Calculate the pressure inside the container in kPa

Answers

Answer:

103.9 KPa

Explanation:

From the ideal gas equation;

PV=nRT

From the parameters given;

P= ?

T=250 K

V= 60L

n=3

R=0.082 atmLK-1mol-1

P= nRT/V

P= 3 × 0.082 × 250/60

P= 1.025 atm

1 atm=101325 pascals

1.025 atm = 1.025 atm × 101325 pascals/1atm

= 103.9 KPa

Answer:

103.9kPa

Explanation:

To solve this question we must use the equation:

PV = nRT

P = nRT / V

Where P is pressure in atm

n are moles of the gas = 3mol

R is gas constant = 0.082atmL/molK

T is absolute temperature = 250K

V = 60L

P = 3mol*0.082atmL/molK*250K / 60L

P = 1.025atm

As 1atm = 101.325kPa

1.025atm * (101.325kPa / 1atm) = 103.9kPa

16. The passage of salts into and out of cells is most
closely associated with the life process of
A. transport
B. respiration
C. reproduction
D. digestion

Answers

Answer:

A. transport

Explanation:

yan po sana makatulong

A scientist plans the react 9.0x10^-2 L NO held at a pressure of 200.0kPa and a temperature of 20.0 C with excess hydrogen. How many moles of nitrogen gas will be produced

Answers

Answer:

[tex]n_{N_2}=0.00369molN_2[/tex]

Explanation:

Hello there!

In this case, by firstly setting up the described chemical reaction, we are able to write:

[tex]2NO(g)+2H_2(g)\rightarrow N_2(g)+2H_2O(g)[/tex]

Thus, given the pressure (convert to atm), volume and temperature (convert to K) we can calculate the moles of NO:

[tex]n=\frac{PV}{RT}\\\\n=\frac{200.00/101.325atm*0.090L}{0.08206\frac{atm*L}{mol*K}*(20.0+273.15)K} \\\\n=0.00738molNO[/tex]

Next, we use the 2:1 mole ratio of NO to N2 to obtain the moles of nitrogen gas that will be produced:

[tex]n_{N_2}=0.00738molNO *\frac{1molN_2}{2molNO} \\\\n_{N_2}=0.00369molN_2[/tex]

Regards!

how many moles of ions is in Magnesium chloride?​

Answers

we would say that the formula weight of MgCl2 = 95.211 g/mol (i.e., 95.211 g of magnesium chloride has a mole of magnesium cations and 2 moles of chloride anions.

The ratio of the mass of U-238 to the mass of Pb-206 can be used to
1.
diagnose thyroid disorders
2.
diagnose kidney function
3.
date geological formations
4.
date once-living things

Answers

Answer:3)date geological formations

Explanation:

The ratio of the mass of U-238 to the mass of Pb-206 can be used to date geological formations.

Use of radioactive elements

Radioactive elements have unstable nucleus and they can be used for dating.

Examples of radioactive elementsUranium 238Lead 206

The ratio of the amounts of U 238 and Pb 206 in a rock sample enables the age of the rock to be estimated using the technique of radiometric dating.

Thus, the ratio of the mass of U-238 to the mass of Pb-206 can be used to date geological formations.

Learn more about radiometric dating here: https://brainly.com/question/8831242

#SPJ2

Organize the following list of atoms from highest to lowest Atomic Radius:
Sulfur, Aluminum, Sodium, Chlorine, Argon, Silicon

Answers

Please lord thank you

To determine the molar mass of an element, one must know the element's
a. number of isotopes.
b average atomic mass
c avogradro constant
d atomic number​

Answers

Answer:

d

Explanation:

from you know the atomic number it should be easy to find

To determine the molar mass of an element, one must know the element's atomic number​. Therefore, option D is correct.

What is the atomic number ?

An element's atomic number (Z) is the number of protons in the nucleus of each atom of that element. This means that the number of protons is the feature that distinguishes each element from all others. Elements differ based on their atomic number.

Because the combined masses of protons and neutrons account for nearly all the mass of a given atom, the atomic mass of a single atom can be calculated by adding the total number of protons and neutrons of that particular isotope.

The atomic mass of any element on the periodic table can be used to calculate its molar mass.

Thus, option D is correct.

To learn more about an atomic number, follow the link;

https://brainly.com/question/16858932

#SPJ6

Akosua has observed that anytime she drinks sobolo, her stool appears dark green. On one occasion

Akosua observed that her stool, which appeared dark green, turned quickly to bright red upon mixing with the perchloric acid-treated WC water.

i. What about the sobolo drink (bright red) that made the stool of Akosua green?


ii. Why did the stool of Akosua, which appeared green because she took sobolo drink, turn into

bright red upon mixing with the acidic WC water?


iii. Suggest a practical use of sobolo drink in the identification of chemicals in the science laboratory .

Answers

Answer:

i. Sobolo is a Ghanian drink that is produced from red hibiscus flower that has an average pH of 6.7

It contains cyanidin and anthocyanins, which is a red pigment that is red in an acidic medium and changes green when introduced in a basic medium that has a high pH

The pH at the rectum of the digestive system = 5 to 8 (Slightly basic)

Therefore, what made the stool of Akosua green is that the sobolo drink changes to green in basic solution

ii. The stool which appeared green because she took sobolo turn into bright red upon mixing with the acidic WC water because of the presence of anthocyanins in sobolo, it turns red in an acidic medium

iii. Sobolo which turns green, or blue in a basic medium and red in an acidic medium can be used as a litmus solution to test the pH of a given substance

Explanation:

Sobolo or soobolo in Ghana is a name for the Hibiscus tea or tisane, which is made from calyces of the hibiscus plant, and has a sour (tangy) taste and appears bright red in color

QUICK HELP!?Where do you think all the rain that falls goes ? Be detailed and specific

Answers

Answer:

Back into the sky and sewers/drainage holes

Explanation:

Water becomes evaporated from the sun and Rain also goes into drainage holes

Into the Earth of course! Rain falls from the sky then onto the ground in the dirt making grass or flowers, or perhaps crops. Rain kan also go onto the tress in the rainforest, or maybe the beautiful Niagara Falls.

(hope this helps!)

The half-lives of both zero-order and second-order reactions depend on both initial concentrations and rate constants. Why does the half-life for second order decrease with increasing initial concentration

Answers

Answer:

This is because the half life of second order reactions is inversely proportional to the initial concentration of the reactant.

Explanation:

The equation to half life in the second order reactions is given by:

t1/2=1/[A]initial

From the equation, you can see that as the initial concentration of A increases the denominator also increases ,thus overall value (t1/2) decreases.

Hope this helps:)

Calculate the weight of keame if he has potential energy of 67J and standing at a hieght of 10m.(take g100m/s)​

Answers

Answer:

height(h)=10 m

acceleration due to gravity (g)=10 m/s^2

mass (m)=?

potential energy=67

or,mgh= 67

or,m×10×10=67

or,m=67/100

or,m=0.67 kg

Therefore,m= 670 grams

2. How many atoms of each element does a mole of Aspartame contain?

Answers

Answer:

The molecular formula for aspartame is C14H18N2O5, and its molar mass is about 294 g/mol. 1.2 g / 294 g/mol = 4.08 X 10-3 moles aspartame. Since each mole of aspartame has 2 moles of nitrogen, you have 8.16 X 10-3 moles of N in your 1.2 grams of aspartame.

Explanation:

EMERGENCY HELP ME OUT

Answers

Answer:

D, The volume will be multiplied by a factor of 4

Explanation:

First find the height

V = π(r^2)h

Plug in what we know

83 = π(3^2)h

83 = π(9)h

83  = (9π)h

9[tex]\pi[/tex] = 28.27

83/28.27 = (28.27)h/28.27

h = 2.94

Then find the volume of the new can by doubling the radius

3 x 2 = 6

r = 6

V = π(r^2)h

V = π(6^2)2.94

V = π(105.84)

V =332.51

For the first one, they rounded to the nearest whole #, so let's do the same.

V = 333

Then divide 333 by 83 to get 4

Therefore, the volume will be multiplied by a factor of 4

Which of the following describes the functions of the liver?

I. It cleans the blood by removing wastes and harmful substances.
II. It helps with digestion of food.
III. It produces bile.

I and II
I and III
II and III
I, II, and III

Answers

Answer: 2 and 3

Explanation:II and III

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