Explain what is meant by a river’s load, and describe how the load is carried.
Please hurry I m timed T-T

Answers

Answer 1

Answer:

A rivers load is gravel and sand. It is carried by being dragged, rolled, and bounced along the bed of the river.

Explanation:

Answer 2

Answer:

the amount of gravel and sand at a river

the load is carried by the moving water


Related Questions

Examination of the first few successive ionization energies for a given element usually reveals a large jump between two ionization energies. For example, the successive ionization energies of magnesium show a large jump between IE2 and IE3. The successive ionization energies of aluminum show a large jump between IE3 and IE4. Explain why these jumps occurs and how you might predict them.

Answers

Answer:

See Explanation

Explanation:

Ionization energy refers to the energy required to remove an electron from an atom. Metals have lower ionization energy than non metals since ionization energy increases across a period.

One thing that we must have in mind is that it takes much more energy to remove an electron from an inner filled shell than it takes to remove an electron from an outermost incompletely filled shell.

Now let us consider the case of magnesium which has two outermost electrons. Between IE2 and IE3 we have now moved to an inner filled shell(IE3 refers to removal of electrons from the inner second shell) and a lot of energy is required to remove an electron from this inner filled shell, hence the jump.

For aluminium having three outermost electrons, there is a jump between IE3 and IE4 because IE4 deals with electron removal from a second inner filled shell and a lot of energy is involved in the process hence the jump.

Hence a jump occurs each time electrons are removed from an inner filled shell.

3. How many oxygen atoms are there in 5.0 mol of water?

Answers

Answer:

3.01 * 10^23 oxygen atoms

Explanation:

Water is H2O. So there are one oxygen atom for every molecule of water.

So in 5.0 mol of water molecules, there are 5.0 mol of oxygen atoms.

Since 5.0 mol = 5 * 6.02 * 10^23 molecules, there are 3.01 * 10^23 oxygen atoms.

Only animals and not plants can adapt to their environment true or false

Answers

Answer:

true

Explanation:

np have a good day brainliest?

How is neutrophilia defined?​

Answers

here i found this website about neutrophils that’s helpful i will link it in the comments

HNO3 + NaOH → NaNO3 + H2O

Answers

Answer:

Explanation: what is the question?

This is a neutralisation reaction.

1. Predict the missing product in the acid-base reaction.
HCL + NaOH
H2O +
HNa
CO2
Nach
О
CLOH

Answers

Answer: The missing product in the acid base reaction is NaCl.

Explanation:

Neutralization or acid base reaction is a chemical reaction in which acid and base combine to form salt and water. Acids donate [tex]H^+[/tex] ions and bases donate [tex]OH^-[/tex] ions  in water which combine to form water molecules.

The balanced chemical reaction for the given reaction is ;

[tex]HCl+NaOH\rightarrow NaCl+H_2O[/tex]

Thus the missing product is NaCl.

The missing product in the acid-base reaction is NaCl.

The balanced chemical reaction for the given reaction is ;

[tex]HCl +NaOH[/tex] → [tex]NaCl +H_20[/tex]

What is an acid-base reaction?

When acid and base react with each other they form salt and water. Water and salt both are neutral which means, whenever acid and base react together, they are neutralized by each other.

Neutralization or acid base reaction is a chemical reaction in which acid and base combine to form salt and water.

Acids donate  [tex]H^{+}[/tex] ions and bases donate  [tex]0H^{-}[/tex] ions in water which combine to form water molecules.

Since acid and base neutralize each other's effect,it is called neutralization reaction.

For Example: When Sodium Hydroxide ( NaOH) , a base, reacts with Hydrochloric acid (HCl) , it forms the salt, Sodium Chloride (NaCl) and Water.

The balanced chemical reaction for the given reaction is ;

[tex]HCl +NaOH[/tex] → [tex]NaCl +H_20[/tex]

Thus the missing product in the acid-base reaction is NaCl.

Learn more about the neutralization reaction here:

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What type of reproduction occurs in members of the bacteria kingdom?

Answers

Answer:

Bacteria can use sexual and asexual repoduction

Explanation:

A gas in a sealed container has a pressure of 125 atm at a temperature of 303 K. If the pressure in the container is increased to 200 atm, what is the new temperature if the volume remains constant?
(Show work pls :)!)

Answers

Answer:

485 K

Explanation:

Step 1: Given data

Initial pressure (P₁): 125 atmInitial temperature (T₁): 303 KFinal pressure (P₂): 200 atmFinal temperature (T₂): ?

Step 2: Calculate the final temperature of the gas

Assuming constant volume and ideal behavior, we can calculate the final temperature of the gas using Gay Lussac's law.

P₁/T₁ = P₂/T₂

T₂ = P₂ × T₁/P₁

T₂ = 200 atm × 303 K/125 atm = 485 K

Balance the following equations:
1) C2H402+_02->_C02+ _H20
2) V205+ _CaS→_Ca0+ V2S5

3) S8+_O2->_SO2

Answers

Answer:

1) 0 C2H4O2 + 0 O2 -> 0 CO2 + 0 H2O (balanced)

2) V2O5 + CaS -> CaO + V2S5

just additional info: V2O5 is divanadium pentaoxide

LHS (Left hand side)

V: 2

O: 5

Ca: 1

S: 1 x 5 [to balance with the right hand side of the equation]

RHS (Right hand side)

V: 2

O: 1 x 5 [to balance with the left hand side of the equation]

Ca: 1

S: 5

When you balance any elements, you have to balance the whole chemical compound.

Thus,

V2O5 + 5 CaS -> 5 CaO + V2S5

LHS CHECK:

V: 2

O: 5

Ca: 5

S: 5

RHS CHECK:

V: 2

O: 5

Ca: 5

S: 5

3) S8 + O2 -> SO2

LHS:

S: 8

O: 2

RHS:

S: 1 x 8 [to balance with LHS]

O: 2

When you balance any elements, you have to balance the whole chemical compound.

S8 + O2 -> 8 SO2

When we add 8 to the RHS, it gives us 8S, 16 O.

In order to balance that into the RHS, I need to multiply the O2 by 8, which will give 8(O2) = 16 O particles.

Therefore, S8 + 8 O2 -> 8 SO2 is the final answer for (3).

Why should you prefer dry-ashing to wet-ashing of a food sample such as cabbage?

Answers

Answer:

The work was to demonstrate a repaid, precise and accurate determination method for ten trace elements (Al, Cd, Cr, Cu, Fe, Mg, Mn, Ni, Se and Zn) in periostracum serpentis (PS) and periostracum cicadae (PC) by inductively coupled plasma atomic emission spectrometry (ICP-AES). In order to evaluate the best digestion method, three different sample digestion methods including dry ashing, wet ashing and microwave digestion procedures were compared in this study.

Explanation:

What volume (in mL) of 0.3900 M HCl is required to neutralize 50.00 mL of 0.8000 M NaOH?

Answers

Answer:

102.6 mL

Explanation:

The reaction that takes place is:

NaOH + HCl → NaCl + H₂O

First we calculate how many NaOH moles are there in 50.00 mL of a 0.8000 M solution:

0.8000 M * 50.00 mL = 40 mmol NaOH

Then we convert NaOH moles into HCl moles:

40 mmol NaOH * [tex]\frac{1mmolHCl}{1mmolNaOH}[/tex] = 40 mmol HCl

Finally we calculate the volume of a 0.3900 M solution would contain 40 milimoles:

40 mmol / 0.3900 M = 102.6 mL

If 4.50 moles of C2H6 undergoes combustion, how many moles of oxygen would it combust with?

Answers

Answer:

First balance the equation

C2H6 + 7/2O2 2CO2 +3H2O

for one mole of C2H6 there are 7/2 mole of O2 required. so for4.50 moles you require 4.50 x 7/2 = 15.75 moles of O2.

Explanation:

What type of reaction is this? Pb + 2NaCl → PbCl2 + 2Na

Answers

This is a single replacement reaction

What type of consumer eats only producers?

Answers

Answer: Primary consumers make up the second trophic level. They are also called herbivores. They eat primary producers—plants or algae—and nothing else. For example, a grasshopper living in the Everglades is a primary consumer

Answer:

primary consumer make up the second trophic level .they are also herbivores they eat primary consumer plants or alger and nothing else .for example a grasshopper living in the everglades is a primary consumer

What is the energy of the reactants?
k]
What is the energy of the products?
k]
What is the activation energy of the forward reaction?
k]
What is the activation energy of the reverse reaction?
k]
What the energy of the forward reaction?
k]
What is the energy of the reverse reaction?
Is the forward reaction endothermic or exothermic?
Is the reverse reaction endothermic or exothermic?

Answers

Answer:

1. The energy of the reactant is 50 KJ

2. The energy of the product is 100 KJ

3. The activation energy of the forward reaction is 200 KJ.

4. The activation energy of the reverse reaction is 150 KJ.

5. The energy of the forward reaction is +50 KJ

6. The energy of the reverse reaction is –50 KJ

7. Endothermic reaction

8. Exothermic reaction

Explanation:

1. Determination of the energy of reactant.

From the diagram given above, the energy of the reactant is 50 KJ

2. Determination of the energy of product.

From the diagram given above, the energy of the product is 100 KJ.

3. Determination of the activation energy of the forward reaction.

The activation energy is the energy between the reactant and the peak. It can be obtained as follow:

Energy of reactant (Eᵣ) = 50 KJ

Energy at the peak (Eₕ) = 250 KJ

Activation energy (Eₐ) =?

Eₐ = Eₕ – Eᵣ

Eₐ = 250 – 50

Eₐ = 200 KJ

Thus, the activation energy of the forward reaction is 200 KJ

4. Determination of the activation energy of the reverse reaction.

Energy of reactant (Eᵣ) = 100 KJ

Energy at the peak (Eₕ) = 250 KJ

Activation energy (Eₐ) =?

Eₐ = Eₕ – Eᵣ

Eₐ = 250 – 100

Eₐ = 150 KJ

Thus, the activation energy of the reverse reaction is 150 KJ

5. Determination of the energy of the forward reaction.

Energy of reactant (Eᵣ) = 50 KJ

Energy of product (Eₚ) = 100 KJ

Enthalpy change (ΔH) =?

ΔH = Eₚ – Eᵣ

ΔH = 100 – 50

ΔH = +50 KJ

Thus, the energy of the forward reaction is +50 KJ

6. Determination of the energy of the reverse reaction.

Energy of reactant (Eᵣ) = 100 KJ

Energy of product (Eₚ) = 50 KJ

Enthalpy change (ΔH) =?

ΔH = Eₚ – Eᵣ

ΔH = 50 – 100

ΔH = –50 KJ

Thus, the energy of the reverse reaction is –50 KJ

7. The forward reaction is endothermic reaction because the energy of the product is higher than the energy of the reactant which leads to positive energy of the forward reaction (+50 KJ).

8. The reverse reaction is exothermic reaction because the energy of the product is lesser than the energy of the reactant which leads to negative energy of the reverse reaction (–50 KJ). In a nut shell, we can say that the energy of the reverse reaction is exothermic because its energy of reaction is –50 KJ.

why are ionic compound soluble in water

Answers

Answer:

Most ionic compounds are soluble in water. Polar water molecules have a strong attraction for charged ions and the charged ions become solvated as they dissociate into water and ionic compounds are soluble in water.

How do you balance 3CaCl2+3Na(PO4)=Ca3(PO4)2+6NaCl

Answers

Answer:

[tex]3CaCl_2+2Na_3PO_4\rightarrow Ca_3(PO_4)_2+6NaCl[/tex]

Explanation:

Hey there!

In this case, according to the law of conservation of mass, it possible to balance the following reaction:

[tex]CaCl_2+Na_3PO_4\rightarrow Ca_3(PO_4)_2+NaCl[/tex]

By adding a 3 on CaCl2, a 2 on Na3PO4 and a 6 on NaCl in order to equal the atoms of calcium, chlorine, sodium, phosphorous and oxygen, as follows:

[tex]3CaCl_2+2Na_3PO_4\rightarrow Ca_3(PO_4)_2+6NaCl[/tex]

Best regards!

Dawn is comparing how different animals move and the structures they use to move. She made the table shown below.


Animal Method of movement Structures used for movement
panther walks legs and feet
parrot flies wings
shark swims

Which structure completes the table for the shark?

eyes and brain

skin and scales

tail and fins

teeth and jaws

Answers

Answer:

tail and fins

Explatanation:

How many liters is 3.3 moles of a gas?

Answers

Answer:

224.1

Explanation:

Explain the difference between an exothermic and an endothermic reaction.

Answers

Answer:

Explanation:

Heat is a reactant.

If the equation requires heat to occur, the reaction is endothermic

The equation would have this model

A + B + heat =====> C + D

If the equation gives away heat, then it is exothermic

The equation would look like this. (I'll use a common reaction)

CH4 + 2O2 - heat ===> CO2 + 2H2O

The heat is minus when it has to be given away.

How saliva works as a buffering agent?

Answers

Answer:

The carbonic acid/bicarbonate buffer is the major buffer in stimulated saliva, with bicarbonate acting mainly to neutralize acids produced by bacteria when they digest sugars in the mouth or acids from the stomach. The concentration of the bicarbonate ion depends largely on the salivary flow rate.

Explanation:

Basta Yan sagut ko eh

Answer:

The carbonic acid/bicarbonate buffer is the major buffer in stimulated saliva, with bicarbonate acting mainly to neutralize acids produced by bacteria when they digest sugars in the mouth or acids from the stomach. The concentration of the bicarbonate ion depends largely on the salivary flow rate

Explanation:

2. A plant growing in response to the sunlight.
A.Gravitropism
B.Phototropism
C.Thigmotropism
D.Hydrotropism

Answers

Answer:

phototropism

Explanation:

since photo is (light?

Phototropism - because she photo means light hydro is water and gravi thing of earth

What is the Kc for the following reaction at equilibrium at 800∘C if [CO2]= 0.030 M ? CaCO3(s)⇌CaO(s)+CO2(g)

Answers

Answer:

0.030

Explanation:

Step 1: Write the balanced reaction at equilibrium

CaCO₃(s) ⇌ CaO(s) + CO₂(g)

Step 2: Calculate the concentration equilibrium constant

The concentration equilibrium constant (Kc) is equal to the product of the concentrations of the products raised to their stoichiometric coefficients divided by the product of the concentrations of the reactants raised to their stoichiometric coefficients. It doesn't include solids or pure liquids.

Kc = [CO₂] = 0.030

Calculate the frequency of a light wave that has a wavelength of 9.2dm.

Answers

How I can do it ? I think u should multiply by formula

How many moles are in 454 Liters of a gas?

Answers

Answer:

20.27 mol

Explanation:

454 L x (1 mol/22.4 L) = 20.27 mol

When Thomas Edison first sold electricity, he used zinc coulometers to measure charge consumption. (In a coulometer the cathode is weighed before a current is passed through it, and then again after the passage of current. The weight increase is proportional to the amount of current that flows through the cathode.) If the zinc plate in one of Edison's coulometers increased in mass by 14.47 g, how much charge had passed through it

Answers

Answer:

The answer is "[tex]42537.93 \ C[/tex]".

Explanation:

Molar mass : [tex]Z_n = 65.38 \ \frac{g}{mol}\\\\[/tex]

[tex]\to Zn^{2+} + 2e^{-} = Zn\\\\[/tex]

[tex]\therefore\\\\ \to 65.38 \ g \ of\ Z_n \ require: \\\\ \to 2 \times 96500\ C\\\\\to 14.41 \ g\ require,\\\\ \to \frac{(14.41 \times 2 \times 96500)}{65.38} \ \frac{g}{mol} = 42537.93 \ C[/tex]

What is the function of an atoms nucleus?
1. It holds protons and
neutrons

2. It contains electrons

3.it communicates with other atoms

4.none and above

Answers

Answer:

The answer to the question is A. :)

The correct answer is Option A.

Protons and neutrons are found in the nucleus.

Explain about atoms nucleus?An atom is a complex configuration of negatively charged electrons arranged around a positively charged nucleus in predetermined shells. Electrically positive protons and electrically neutral neutrons make up atomic nuclei. The strongest fundamental force known to science, also known as the strong force, holds these things together. The nucleus typically makes up more than 99.9% of the atom's mass but much less than.01 percent of its volume.Although protons and neutrons are similar in mass, protons have one unit of positive charge (+ e), while neutrons have no charge. The center of an atom is where all of these particles are crammed into a very small area.The force needed to keep an atom together and in place is produced by the atom's nucleus.

To learn more about atoms nucleus refer to :

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A(n) _________ is an atom or a group of atoms with either a positive or negative charge
O compound
O ion
O molecule
O nucleus

Answers

Answer:

the answer is ion..

hope it helps..

The sender for this question would be ion.

Which letter in the rock cycle diagram represents metamorphic rock?
A)
A.
B)
B.
)
D.
D)
E.

Answers

Answer:

B.

Explanation:

Hopes this helps. Mark as brainlest plz!

Answer:

b

Explanation:

learned this in science class

After a metal object turns to dust (rust), it would have _____.
Need Help please

Answers

Answer:

The answer is high entropy.

Explanation:

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