SECTIONA ANSWERALL QUESTIONS (5 MARKS PER QUESTION) 1:03 mixing a solution of silver nitrate and dilute hydrochloric acid a white precipitate is :o:med inrmediately. 1) Write an equation for the reaction (ii) The precipitate darkens rapidly upon standing. Why? :12 Explain why conductivity measurements of M* in aqueous solutions is in the order: Cs' > Rb'>K" > Na* > Li' A3 Why is it that lithium salts are often hydrated whereas those of the other alkali metals are ofien anhydrous? 44 Explain with the help of chemical equations why BeCl2 is acidic .45(a) State the main types of bonds formed by hydrogen Star lo list three ways of preparing hydrogen 16 Write an equation and identify the element formed when: (a) Polonium 210 undergoes a- decay (b) Actrium 277 undergoes ß- decay (0) Iridium 186 undergoes electron capture d) Bismuth 192 undergoes positron emission (C) Iodine 133 undergoes B- emission 47 The Uranium decay series starts with 238,2Uand ends with 206,2Pb. Each step involves the Luistentie​

Answers

Answer 1

Answer:..,.,

Explanation:88.,,'


Related Questions

At this location, it is winter because the North Pole is tilted

Towards the sun

Away from the sun

Answers

Answer:

Away from the sun

Explanation:

winter

In the Northern Hemisphere, winter generally begins on December 21 or 22. This is the winter solstice, the day of the year with the shortest period of daylight. Summer begins on June 20 or 21, the summer solstice, which has the most daylight of any day in the year.


What type of policy does the Federal Reserve use to boast a slow growing economy?

Answers

Answer:

Tight monetary policy is an action undertaken by a central bank such as the Federal Reserve to slow down overheated economic growth. Central banks engage in tight monetary policy when an economy is accelerating too quickly or inflation—overall prices—is rising too fast.

Monetary policy. The fed can increase purchases of government treasures and can print more money.

The theory of spontaneous generation states that *

A. Even though higher level organisms cannot be created from inanimate objects, it is possible for microorganisms

B. Living organism can be created from nonliving matter

C. Life is created by other living things

D. Only living humans can create other living creatures

Answers

Answer:

B. Living organism can be created from nonliving matter

Explanation:

The theory of spontaneous generation states that life could come from non-living things.

What is the difference between a theory and a scientific law?

Answers

Scientific laws and theories have different jobs to do. A scientific law predicts the results of certain initial conditions. ... In contrast, a theory tries to provide the most logical explanation about why things happen as they do.

Think of it like theory and physics.

A theory is an idea that needs to be tested.

Scientific law is something that cant be proven wrong.

who do you think has the problem in this communication process​

Answers

Answer:

what

Explanation:

i d k what this question is

Calculate the heat produced by hydrolysis of 65 kg of ATP (the molecular weight of ATP is 507.18 g/mol).

Answers

The heat produced by hydrolysis of 65 kg of ATP is -6.8 kJ.

Let's consider the thermochemical equation for the hydrolysis of ATP.

ATP + H₂O ⇒ ADP + Pi   ΔG = -57 kJ/mol

We will convert 65 kg of ATP to moles using its molecular weight (507.18 g/mol).

[tex]65 \times 10^{3} g \times \frac{1mol}{507.18g} = 1.2 \times 10^{2} mol[/tex]

57 kJ of heat are released by the hydrolysis of 1 mole of ATP. The heat released by the hydrolysis of 1.2 × 10² moles of ATP is:

[tex]1.2 \times 10^{2} mol \times \frac{(-57kJ)}{1mol} = -6.8 \times 10^{3} J = -6.8 kJ[/tex]

-6.8 kJ is the heat produced by hydrolysis of 65 kg of ATP.

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which phrase is the best description of osmosis

Answers

movement of water from high potential to low potential

Movement of water from low potential to high potential

A 200.0 ml beaker filled with oil has a mass of 293.2 g. The mass of just the beaker is 130.2
g. What is the density of the oil?
Answer in a complete sentence. Show your work. Your final answer should have the cor-
rect number of sig figs. show work!

Answers

Answer:p=m/v

p=(292.2-130.2)/200

p=0.8100g/ml

Explanation:

Density of a substance is the ratio of its mass to volume. The density of the oil filled in a  200.01 ml beaker is 0.815 g/ml.

What is density?

Density of a substance is the mass  per volume. Thus we het how much of its particles are located per one unit of volume.

Mathematically density can be written as mass/ volume. The mass of the beaker containing oil is given as 293.2 g. The mass of beaker itself is 130.2 g. Hence, mass of oil is 293.2 - 130.2 = 163 g.

Volume of the oil is 200 ml. Thus density is 163 g/200 ml = 0.815 g/ml.

Hence, the oil in the beaker with 200 ml volume and 163 g mass have a density of 0.815 g/ml.

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The diameter of Mercury is 4,878,000 meters.
Type your answer..

Answers

Answer:

The diameter of a mercury atom is 151 pm and the diameter of the planet Mercury is 4,879.4 km.

Noble gas:
Oxygen
Chlorine
Or Krypton

Answers

Answer:

Krypton

Explanation:

Answer:

C

Explanation:

trust me :)

Polymers are large organic molecules that are made of
a.
cations.
c.
carbon and oxygen only.
b.
anions.
d.
repeating units.

Answers

Answer:

D) Repeating units.

Explanation:

Polymers are large macromolecules which are made up of many repeating structural units called monomers :)

How would a descriptive model of Earth's layers be categorized?
a. abstract model
b. prototype model
c. concrete model
d. conceptual model

Answers

The Earth can be divided into one of two ways – mechanically or chemically. Mechanically – or rheological, meaning the study of liquid states – it can be divided into the lithosphere, asthenosphere, mesospheric mantle, outer core, and the inner core.

Explanation:

The relationships among which variable quantities are expressed by the ideal gas law equation?

A. pressure, volume, temperature, number of moles

B. volume, temperature, number of moles, gas constant

C. pressure, volume, number of moles, mass

D. pressure, volume, temperature, molar mass

Answers

Answer:

A. Pressure, volume, temperature, number of moles

The relationships among pressure, volume, temperature, and the number of moles are expressed by the ideal gas law equation. Therefore, option A is the correct answer.

The ideal gas law equation is PV = nRT, where P represents the pressure of the gas, V represents its volume, n represents the number of moles of gas present, T represents its temperature, and R is the ideal gas constant. This equation describes the behavior of an ideal gas at standard temperature and pressure (STP).

By manipulating the ideal gas law equation, we can calculate various properties of gases, including their density, molar mass, and molecular weight. This equation is widely used in chemical engineering, thermodynamics, and other fields that deal with gases.

Thus, option A is correct.

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calculate the pH of the following
A.0.02mol/L HCI
B. 0.1 mol/L NaOH​

Answers

GIMME POINTSSSSSSSSSSSSSSSS

Answer:

A.

Explanation:

hope it helps

Which of the following steps is important to critical thinking?
implementing solutions
b utilizing facts
c. holding firm to conclusions
d answering questions
Please select the best answer from the choices provided

Answers

B. Utilizing facts :)

Answer:

b

Explanation:

edge 2022

please answer this correctly​

Answers

Answer:

B. basic

Explanation:

Because acidic is sour in test, salt is tasty in taste, and neutral neither bitter, tasty and nor sour

please help with this!

Answers

Answer:

d) The object falls towards the ground

Explanation:

How much heat is necessary to 20g of water at 100*C into steam at 100*C?

Answers

Answer:

To convert 100.0 g of water at 20.0 °C to steam at 100.0 °C requires 259.5 kJ of energy.

The amount of heat which is required for a phase change of a substance without any change in temperature is known as latent heat. Here the amount of heat required is 10,800 calories.

What is heat capacity?

The heat capacity of a substance or a system is defined as the amount of heat required to raise its temperature through 1°C. It is denoted by C. The specific heat capacity is the amount of heat required to raise the temperature of 1 gram of the substance through 1°C.

The equation to calculate the heat required is:

Q = mc (T₂ - T₁) + mL₁

L = Latent heat of vaporization of water

m = mass

c = specific heat capacity

T₂ = Final temperature

T₁ = Initial temperature

T₂ - T₁ = 100 - 100 = 0°C

Q = 20 g × 1 cal /g°C × 0°C +  20 g × 540 cal/g

Q = 10,800 calories

Thus the amount of heat required is 10,800 calories.

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L 2.5.2 Test (CST): Computer-Scored Unit Test
Question 5 of 25
How does increasing the temperature affect a reaction?
A. An increase in temperature slows down the reaction.
B. An increase in temperature increases the reaction rate.
C. An increase in temperature lowers the reaction's activation energy.
D. An increase in temperature changes equilibrium concentrations.
SUBMIT

Answers

Answer:

b

Explanation:

The concept Arrhenius equation is used here to determine the temperature dependence of the rate of a reaction. An increase in temperature increases the rate of a reaction. The correct option is B.

What is Arrhenius equation?

The rate of a chemical reaction is affected by the factors like temperature and activation energy. The influence of these factors on the rate of the reaction is explained by the Arrhenius equation.

The equation is given as:

[tex]k = A. e^{-} ^{E_{a} } /RT[/tex]

k - Rate constant

A - Frequency factor

Eₐ - Activation energy

R - Gas constant

T - Temperature

Since 'Temperature' appears in the denominator of the negative power of the exponential factor of the equation, it is evident that an increase in temperature increases the value of rate constant and thereby increases the rate of the reaction.

Thus the correct option is B.

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A basketball weighing 0.5 kg is flying through the air at 10
m/s. What is its kinetic energy?
Enter the answer
Check it
Improve this questio

Answers

Answer:

25J

Explanation:

Kinetic energy = (mv^2)/2. So (.5)(10^2)/2 = 25 J

MARKING BRAINLIEST! HURRY!!

Read the following list of objects:

a flying insect, a stretched elastic band, a falling stone, a flowing river, a coiled spring

Which of the objects have only potential energy?

A flying insect, a coiled spring
A stretched elastic band, a coiled spring
A falling stone, a flying insect
A flowing river, a flying insect

Answers

Answer:

a coiled spring

Explanation:

6Na(s) + N2(g) --> 2Na3N(s)

Answers

Answer:

 80.0 g Na and 20.0 g N2.

Explanation:

This means the limiting reactant determines the maximum mass of the product formed.

Balance an equation

Answers

Answer:

no

Explanation:

s ss s s s s s s s s s s s s ss s s s s dkfkf f f f f f f f

Aluminum reacts with chlorine gas according to the following equation shown below. How many
moles of Cl2 are required to react with 0.062 mol of Al?

2 Al(s) + 3 Cl2(g) → 2 AIC13()

_mol

Answers

Answer:

nCl= 0,062x3/2=0,093(mol)

Explanation:

Who created the planetary model of the atom?

Question 1 options:

Democritus


Dalton


Rutherford


Bohr

Answers

The answer is Rutherford.

✞how are snythetic detergents better than soap??⭐⭐㋛​

Answers

Soaps work in soft water. However, they are not effective in hard water. In contrast, synthetic detergents work both in soft water and hard water. Therefore, synthetic detergents are better than soaps.

Answer:

Advantages of synthetic detergents over soaps: Detergents can work with hard water too while soaps cannot. Synthetic detergents are stronger cleansing agents than soaps.

Explanation:

sorry if I'm wrong

Convection currents in the atmosphere influence many weather patterns. What property of the air has the most influence on convection currents?

1. The direction of the wind

2. The velocity of the wind

3. The temperature of the air

4. The mass of the air

Answers

Convection currents are largely influenced by air temperature. A low-pressure area is produced when air is heated because it becomes less dense and rises.

What effect on the climate does convection have?

For instance, the air above the Earth heats and rises as its surface warms from the sun. This air may continue to rise while cooling and producing cumulus clouds if the conditions allow.

How do air masses respond to convection currents?

Climate-affecting wind patterns are driven by convection currents. Convection currents are used to shift air masses. There are two different kinds of air masses: warm and cold. From higher latitudes to lower latitudes, cold air masses travel.

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What's the study of earth and its atmosphere ?

Answers

Answer:

Meteorology is the science dealing with the atmosphere and its phenomena, including both weather and climate

Answer: Meteorology I believe

Explanation:

please help me solve this ​

Answers

Answer:

dude your handwriting!!!

Select the statements that correctly describe an meteoroid. Check all that apply

largest of the space rocks.

smallest of the space rocks

when in the atmosphere, they are called a meteor

they never come near Earth

Answers

Answer:

they are the smallest of space rocks, when in the atmosphere they are called meteors.

Explanation:

i think this is right.

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