ughh please help me ​

Salts that are from strong bases and strong acids do not hydrolyze. Salts that are from strong bases and weak acids do hydrolyze, which gives it a pH greater than 7.  Salts of weak bases and strong acids do hydrolyze, which gives it a pH less than 7.

Answer:

It is visible light

Explanation:

Answer:

9.96 moles of oxygen

Explanation:

Given data:

Number of molecule of oxygen = 6.00×10²⁴ molecules

Number of moles of oxygen = ?

Solution:

1 mole contain 6.022 ×10²³ molecules

6.00×10²⁴ molecules × 1 moles of oxygen  / 6.022 ×10²³ molecules

0.996×10¹ moles of oxygen

9.96 moles of oxygen

The number 6.022 × 10²³ is called Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

Answer:

the elk population will increase

Explanation:

because the gray wolves eat the Elks so introducing them back into the food chain will mean that more Elks are eaten!

hope that helps

Efforts to control kudzu infestations have included the following methods: cutting, grazing, digging, disking, prescribed burning and application of herbicides. Roots of mature plants grow too deeply to be affected by freezing. Burning will kill only the very young plants.

Ideally, simply pulling out the heavy vines would prevent the kudzu from returning. However, you still need to kill each of the rooted stems at their crowns. Mowing or cutting back the vegetation to the ground provides the first step in removal. Then it’s time to bring out the big guns in the form of chemical herbicides.

Answer:

67.58%  

Explanation:

First we convert the masses of the reactants into moles, using their respective molar masses:

By looking at the reaction equation, we know that 1.32 moles of Cl₂ would react completely with (2 * 1.32) 2.64 moles of Na. There are not as many Na moles, so Na is the limiting reactant.

Now we calculate how many NaCl moles would have been produced if all the limiting reactant was consumed:

We convert those moles to grams:

Finally we calculate the percent yield:

Explanation:

By Avagadro's Law,

V¹n¹ = V²n², where P and T are constant.

Therefore (4.00L)(0.200mol) = (3.25L)n²,

n² = 0.246mol. (3s.f.)

P.S. n² does not mean the square of n in this case, it is just a subscript.

Ideal gas law is valid only for ideal gas not for vanderwaal gas. Combined Boyle's and Charles' gas law is used here. Therefore, 0.246mol of gas remain if some of the gas is released and the new volume is 3.25 L.

Ideal gas equation is the mathematical expression that relates pressure volume and temperature.

Mathematically the relation between Pressure, volume and temperature can be given as

PV=nRT

where,

P = pressure of ideal gas

V= volume of ideal gas

n =number of moles of ideal gas

T =temperature of ideal gas

R = Gas constant = 0.0821 L.atm/K.mol

By Avagadro's Law,

V₁n₁= V₂n₂, where P and T are constant.

V₁×n₁= V₂×n₂,

(4.00L)(0.200mol) = (3.25L)n²

n₂ = 0.246mol.

Therefore, 0.246mol of gas remain if some of the gas is released and the new volume is 3.25 L.

To learn more about ideal gas equation, here:

https://brainly.com/question/14826347

#SPJ2

Answer:

C  Which model is composed of electrically charged particles?

Explanation:

The best question to resolve and determine the model which is plasma is to find one that is composed of electrically charged particles.

Plasma is one of the states of matter which is characterized by ions and other charged particles.

Matter is anything that has weight and occupies space.

There are four known states of matter which are:

Plasma is the only state of matter made up of charged particles.

Answer:

below

Explanation:

Environmental Benefits. Fungi feed on dead organic matter which includes leaf litter, soil, dung, wood and dead animals.

Answer:

a put a as you answer you rock do not give up on your dreams

Answer:

the input force would be 75 N

Explanation:

if the output force is 150 N you divide that in half which leaves with 75 N !! :)

Answer:

As the salinity of seawater increases, the density of the water also increases.

Explanation:

Edmentum answer

Answer:

The salinity of seawater increases, the density of the water also increases.

Explanation:

Answer:

either deposition or physical weathering

Answer:

D. Erosion

Explanation:

Answer:

Hexa

Explanation:

Enjoy !

Answer:

Explanation:

One

Pressure will favor the side with the least number of mols if it the larger number of moles counts only the gases. (Le Chetalier's Principle). In this case both CaCO3 and CaO are not soluble in water. The only gas is CO2. Since it represents the most number of mols the reactant is favored.

More or Less are very troublesome words in beginning science. Make sure you understand their meaning for this question. The more pressure applied, the more the reactants will be favored and the equation shifts left.

Two

Fe and Fe3O4 are both solids. It depends on the form that water takes. Looking it up, it is shown to be in a gas form. That means if you increase the pressure, nothing will happen. That is not your question, but you should note it.

The answer to your question is you increase the concentration of Fe or H2O, the equilibrium will shift right.

If you add more Fe3O4 or hydrogen it will shift left.

Chemists say that if you alter the equilibrium the equation will shift in the opposite direction to compensate for the action you have taken.

Answer:

hope this helps

Explanation:

Answer/Explanation: At high angles like 90 degrees, the light doesn't spread out as much and has a more circular shape. As the ... Solar angle influences how much energy is received in an area.

-Bababooeyboy

A) high melting point

C) soluble in water

D) soluble in alcohol

E) does not conduct electricity in water

these options are a bit vague as some covalent substances dissolve in water / alcohol while some don't

Answer:

48.59%

Explanation:

theoretical yield = 42.6g

actual yield = 20.7g

% yield = 20.7/42.6 x 100 = 48.59% (2 d.p.)

Answer:

Yall are coming after that person above me when theres no diagram!!!! HELLO????????????? crazy

Explanation:

Answer:

1kg/ml

Explanation:

Answer:

1. 7 meters

2. gullet

4. Not sure about this

6. strong

7. digestive

8. starch

12. Not sure about this either

14. Water

15. Jejunum

19. teeth

Hope this helps!

Answer:

True

Explanation:

Answer: true

Explanation:

Answer:

polyethylene terephthalate

PET (also abbreviated PETE) is short for polyethylene terephthalate, the chemical name for polyester. PET is a clear, strong, and lightweight plastic that is widely used for packaging foods and beverages, especially convenience-sized soft drinks, juices, and water.

Explanation:

hope this helps have a good rest of your afternoon :) ❤

Answer:

C. Yes, if each sample contains 6.02 x 10²³ atoms.

Explanation:

It is possible for each sample to contain 1 mole of each sample if and only if each of the sample if made up of 6.02 x 10²³ atoms.

6.02 x 10²³ atoms is the Avogadro's number. This number is equivalent to a mole of a substance.

A mole is simply a unit of measurement and it is equivalent to 6.02 x 10²³ atoms.

Answer:

C

Explanation:

i just took the test

:)

Explanation:

Use the molecular formula to find the molar mass; to obtain the number of moles, divide the mass of compound by the molar mass of the compound expressed in grams.

Answer: Energy storage is the capture of energy produced at one time for use at a later time to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an accumulator or battery.

Explanation:

Answer:

3 molecules

Explanation: i got it right on the test, also because the 2 other ones are compounds because they have hyrdogen and oxygen attached and molecules just have particles of one element attached

Answer:

3 molecules

Explanation: