Please help me with this homework

Answer:

D i think, sorry if its wrong

Explanation:

Answer:

Using the well could lower the water table throughout the area.

Explanation:

i just took a test and this was the answer

Answer:

I will take Aspirin if I had a headache

Answer: Democritus atomic theory is the ancient theory that describes the nature of matter in terms of atoms whereas Dalton atomic theory is a modern scientific theory that describes the nature of matter in terms of atoms. According to Dalton's theory, atoms are identically same, but Democritus had no idea about it. Atoms are never created nor destroyed, they just rearrange.

Explanation:

Answer:

One mole of anything has 6.023 x 10^23 molecules.

That would mean 3.4moles of CO2 have 6.023x 10^23 times 3.0.

So that would be2.04782×10^24 molecules in 3.0 moles of C02.

Mole measure the number of elementary entities of a given substance that are present in a given sample. 2.047×10²⁴ molecules are found in 3.4 moles of carbon dioxide.

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

Mathematically,

number of molecules of carbon dioxide = number of moles of carbon dioxide ×6.022×10²³ molecules

Number of moles of carbon dioxide=3.4moles

Substituting the values in the above equation we get

number of molecules of carbon dioxide =3.4moles×6.022×10²³ molecules

number of molecules of carbon dioxide =2.047×10²⁴

Therefore, 2.047×10²⁴ molecules are found in 3.4 moles of carbon dioxide.

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Answer:

Increased

Explanation:

We know that the higher the temperature the higher the rate of reaction. This implies that as the temperature is increased, a reaction tends to proceed faster.

This follows from the collision theory, the higher the temperature, the higher the energy of the reacting particles hence they collide with each other faster and more effectively.

Thus the rate of reaction( or reaction time) for the carton of milk on the counter was increased.

Answer:

1) Monochrome

2) Monocot

3) Monosaccharide

4) Monounsaturated

5) Monoxide

Explanation:

The prefix mono or mon is of Greek origin and it means single, lone or one.

From the meaning of the words we can tell that they have something in common:

1) Monochrome: This refers to an artwork, a painting or drawing that has just one color.

2) Monocot: This is a type of flowering plant that has a single embryo and a single cotyledon.

3) Monosaccharide: This is a type of simple sugar that contains one sugar unit that cannot be split.

4) Monounsaturated: This refers to a molecule that contains one double or triple bond.

5) Monoxide: This refers to a form of oxide that contains only one oxygen atom.

From the definitions above, all the words mean having only one or a single item.

That is what they have in common.

Answer:

Since the force applied at both ends is acting in opposite directions, then the resultant force becomes negative.

= 35 - 25 = 10

Answer:

im gonna say A

Explanation:

i say A because i mean biotic potential is residing in the catagory birth rate which is how many the lay a year penguins have already reached the amount they are gonna lay robins the literally have no exact stop point its between 5 and 10 a year like said. so if u look at the amount they have each they have both reached there maximum point. but penguins only lay eggs once a year while robins well 5 to 10 reaching there maximum potential.

Answer: stable unmetal

Explanation: if you count electrons, you get 35 and it is element Br

According to the electronic configuration , the element with the given electronic configuration  is a unstable non metal.

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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Answer:

The third one!

Answer:

Explanation:

when a car begins to slow down the speed that it was going will decrease. Which means that it is an example of deceleration.

Answer:

The answers would be : ( a car approaching a red light )

15 N .

F= m.a ----> 15 = 5.3

Answer:

Nope not all

Explanation:

As scientists says that not all give a solution.

Answer:

but iron is 2 and 3 by its valance how could it be possible

Answer:

What do you want answered?

Explanation:

Answer:

convection (I am pretty sure, I am sorry if it isnt right)

Explanation:

Answer:

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Answer:Magnesium (Mg) is a - reactant

Hydrogen (H2) is a - product

magnesium chloride (MgCI2) is a - product

hydrochloric acid (HCI) is a - reactant

Explanation: It’s in my notes

Answer: The given statement is False.

Explanation:

Alpha particle is a helium nuclei.

Alpha particles are produced when a larger nuclei decays into smaller nuclei in radioactive decay. Alpha particles have mass number and atomic number as 4 and 2 respectively.

General representation of alpha decay :

[tex]^A_Z\textrm{X}\rightarrow ^{A-4}_{Z-2}\textrm{Y}+^4_2\textrm{He}[/tex]

Thus the given statement that alpha particle is composed of [tex]He^{2+}[/tex] ions is False.

The statement of [tex]\rm He^2^+[/tex] ions has formed the alpha particles is true.

Alpha particles are particles that have been similar to the He-4, with the presence of two protons and two neutrons. The alpha particles have the absence of electrons and have been formed during the alpha decay.

[tex]\rm He^2^+[/tex] has been the ion of He with the positive charge indicating the loss of 2 electrons. Thus, in [tex]\rm He^2^+[/tex], there has been 2 protons, 2 neutrons, and 0 electrons.

The atomic configuration of [tex]\rm He^2^+[/tex]has been similar to the alpha particles. Thus, the statement stating, "the alpha particles to be composed of [tex]\rm He^2^+[/tex]ions " is True.

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Answer: B. Potential energy

Explanation:

There are several form of potential energy including gravitational, magnetic, electrical, chemical and eleastic potential

Answer:

Potential Energy

Explanation:

Potential energy is stored energy and the energy of position.

Chemical, Gravitational, and Elastic are all stored energy and the energy of position.

Hope this helps!

:D

Explanation:

False, gray whales average 75 miles per day at a speed of 5 mph and is the longest annual migration of any mammal.

Answer:

That would be speed.

Explanation:

Answer:

interphase

Explanation:

they spend most time in interphase

Answer:

DNA is a dynamic and adaptable molecule. As such, the nucleotide sequences found within it are subject to change as the result of a phenomenon called mutation. Depending on how a particular mutation modifies an organism's genetic makeup, it can prove harmless, helpful, or even hurtful.

Explanation:

air

because air is compound discoverd in 1992

Answer:

Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases. ... gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.

Answer:

In the social sciences, a social group is two or more humans who interact with one another, share similar characteristics, and have a collective sense of unity. This is a very broad definition, as it includes groups of all sizes, from dyads to whole societies.

Explanation:

Answer:

The meaning of social group is two or more people who interact with one another, share similar characteristics, and collectively have a sense of unity.

Explanation:

Hope this helped

Answer:

canals and irrigation is the answer

Answer:

In order to be able to solve this problem, you will need to know the value of water's specific heat, which is listed as

c=4.18Jg∘C

Now, let's assume that you don't know the equation that allows you to plug in your values and find how much heat would be needed to heat that much water by that many degrees Celsius.

Take a look at the specific heat of water. As you know, a substance's specific heat tells you how much heat is needed in order to increase the temperature of 1 g of that substance by 1∘C.

In water's case, you need to provide 4.18 J of heat per gram of water to increase its temperature by 1∘C.

What if you wanted to increase the temperature of 1 g of water by 2∘C ?

This will account for increasing the temperature of the first gram of the sample by n∘C, of the the second gramby n∘C, of the third gram by n∘C, and so on until you reach m grams of water.

And there you have it. The equation that describes all this will thus be

q=m⋅c⋅ΔT , where

q - heat absorbed

m - the mass of the sample

c - the specific heat of the substance

ΔT - the change in temperature, defined as final temperature minus initial temperature

In your case, you will have

q=100.0g⋅4.18Jg∘C⋅(50.0−25.0)∘C

q=10,450 J

Answer:

54L

Explanation: