Chemistry High School

If all the deer disappeared from this community, which change would be most
likely to occur?

If All The Deer Disappeared From This Community, Which Change Would Be Mostlikely To Occur?

Answers

Answer 1

Answer:

i think the grass population would decrease

Explanation:

Answer 2

Answer:

The Coyote population would decrease

Explanation:

Related Questions

how is iodine 131 different from a normal atom of iodine?

Answers

Answer:

Iodine 131 is an unstable/radioactive isotope of iodine and a normal atom of iodine is stable.

Explanation:

write down the similarities and differences of Continental and temperature climatic zones​

Answers

Answer:

Temperate climates, otherwise known as meso-thermal climates, are cooler than subtropical climates, but warmer than polar climates. A continental moderate climate is another sub-type of temperate climates. These regions have hot, rainy summers and cold, dry winters.

Explanation:

PLEASE I NEED HELP ASAP.

Answers

Al = 13 protons, 10 electrons, 14 neutrons

S = 16 protons, 18 electrons, 17 neutrons

P = 15 protons, 18 electrons, 19 neutrons

Hope this helped!

How much does a sample of C6H12O6 weigh if it contains 1.7 x 10^28 hydrogen atoms?

Answers

Answer:

Explanation:

Glucose  has    6  number  of  carbon  atoms,  12  atoms  of  oxygen  and   6  atoms  of  oxygen

The  total  number  of  glucose  atom is  24  atoms

The  atom  of  hydrogen is twice  that  of   carbon  

that  is (6.02 x10^22) x2=1.204 x10^23atoms

the  number  of  moles  of  hydrogen  is   solved  as   follows

1mole  =  6.02x10^23 atoms  what   about  1.204 x10^23=

{(1.204x10^23)/(6.02 x10^23)}=0.2moles

The  moles  of  glucose

1   atom  of   glucose=  6.02 x10^22  x4 =2.408 x10^23  atoms

moles= { (2.48 x10^23)/(6.02  x10^23)}=0.41moles

Hope this helped :)

What did you find out from this investigation? Be thoughtful in your answer.

Answers

What’s the invistagation about????

Help plsss!
If the average atomic mass is 39.948amu, which isotope is more abundant?

Answers

Answer:

It depends on which element you are talking about. I appears that no element has an average atomic mass of that number. So, for the question, if it assumes that there are two isomers with 39 amu and 40 amu, then the 40 amu one would be more abundant. But again, there are different possible isotopes and I can't tell what the question wants.

what is the orbital notation for silver?

Answers

Answer:

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d10

Explanation:

I think

1s2 2s2 3s2 i think i’m not sure


Which of the following neutral atom configurations satisfies the octet rule?
1s2 2s2 2p6 3s2 3p6
1s2 2s1
1s2 2s2 3s2 3p4
1s2 2s2 3s2 3p6 4s1

Answers

Answer:

2

Explanation:i did the test

1 mole of a gas occupies 22.4 L at ________

Answers

Answer: At STP, one mole (6.02 × 1023 representative particles) of any gas occupies a volume of 22.4 L (Figure below). A mole of any gas occupies 22.4 L at standard temperature and pressure (0°C and 1 atm).

Explanation:

That the answer

1 mole of a gas occupies 22.4 L at (0°C and 1 atm). It is the standard temperature and pressure.

What is Avogadro's hypothesis?

Avogadro's hypothesis says that all gases have an equal number of particles at the same temperature and pressure.

The empty space between the particles makes up the majority of a gas's overall volume.

Due to this, the size of the particles themselves is nearly insignificant.

The volume of one mole of a gas at standard temperature and pressure is known as the molar volume.

Thus, the correct option is 0°C and 1 atm.

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(GIVING BRAINLIEST)
Balance each of the following chemical equations below

Answers

Explanation:

A.

AgNO₃ + KCl → AgCl + KNO₃ (Already Balanced)

B.

H₂O + SO₃ → H₂SO₄ (Already balanced)

C.

2KI + Cl₂ → 2KCl + I₂

D.

2NaHCO₃ → Na₂CO₃ + H₂O + CO₂

E.

Zn + 2HCl → ZnCl₂ + H₂

F.

BaCl₂ + Na₂SO₄ → BaSO₄ + 2NaCl

G.

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

H.

2Al + 3CuCl₂ → 2AlCl₃ + 3Cu

Heat rising in a hot-air balloon is an example of __________. conduction convection radiation solar

Answers

Answer:Condensation

Explanation:

it

Answer:

convection

Explanation:

I took test I got 100%

Which of the following statements regarding the moon and Earth is correct? Question 9 options: A) The moon is older than Earth by approximately 300 million years. B) Earth is tidally locked, while the moon spins on its axis. C) Earth and the moon have nearly the same mass. D) Earth and the moon are nearly the same age.

Answers

The statement 'The moon is older than Earth by approximately 300 million years' is True (Option A).

When did the Moon form?

The Moon formation refers to the geological period of time in which our natural satellite emerged as an independent celestial body.

It has been proposed that the Moon emerged first compared to the Earth (approximately 300 million years).

In conclusion, the statement 'The moon is older than Earth by approximately 300 million years' is True (Option A).

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Each of the atoms in alkali earths metal Family( group 2) has ___ valence Electrons .

Pleasee help I’ll mark you as brainlister
Fill in the blank

Answers

Answer:

the answer is 2 valence electrons

help :(
If 4.7 moles of oxygen gas are allowed to react with 3.9 moles of iron according to the following equation:
4 Fe + 3 O2 → 2 Fe2O
How many moles of Fe2O3 can be formed?​

Answers

Moles of Fe₂O₃ formed : 1.95

Further explanation

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

[tex]\tt 4Fe+3O_2\rightarrow 2Fe_2O_3[/tex]

We find the limiting reactant from the ratio of the mole and the reaction coefficient

Fe ⇒ 3.9 : 4 = 0.975

O ⇒ 4.7 : 3 = 1.56

Because the ratio of Fe is smaller, then Fe becomes the limiting reactant

Reaction

4Fe + 3O₂ ⇒ 2Fe₂O₃

mol Fe₂O₃ from mol of Fe as limiting reactant

mol ratio Fe₂O₃ : Fe = 2 : 4, then mol Fe₂O₃ :

[tex]\tt =\dfrac{2}{4}\times 3.9=\boxed{\bold{1.95}}[/tex]

What does it mean for an element to be oxidized?

A. The element is a spectator ion in a chemical reaction.

B. The element has gained one or more electrons in a reaction.

C. The element has lost one or more electrons in a reaction.

D. The element has bonded to another element with opposite charge​

Answers

Answer:

B

Explanation:

Oxidation occurs when an atom molecule or ion loses one or more electrons in a chemical reaction when oxidation occurs the oxidation state of the chemical species increases oxidation doesn't necessarily involve oxygen originally the term was used when oxygen caused electron loss in a reaction hope this helped. :)

An element is oxidized when It has loses one or more electrons in a chemical reaction. Therefore, Option (C) is correct.

What is Oxidation ?

The loss of electrons, gain of oxygen or loss of hydrogen will be considered as Oxidation.

The gain of electrons, loss of oxygen or gain or hydrogen will be considered as the Reduction.

Rusting is one of the popular example of oxidation.

Therefore, An element is said to be oxidized when It has lost one or more electrons in a reaction.

Hence , Option (C) is correct.

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What do these two changes have in common?
using a large magnet to remove pieces of iron from a junkyard
rain forming in a cloud
Select all that apply.
Both are caused by heating.
Both are only physical changes.
Both conserve mass.
Both are chemical changes.

Answers

Answer: Both are only physical changes.

Explanation:

Both are only physical changes.  

• The material, which takes part in the change is structurally similar after and before the change is known as the physical change.  

• The cloud formation is a physical change as when evaporation of water takes place  it goes into the air and produces cloud by the process of condensation. The same water goes back to earth by the process of precipitation and this get repeated again and again.  

• A chemical change takes place when formation of new substance takes place by combining two substances. In the case, when a magnet picks up iron in a junkyard, one is still having an iron and a magnet, no formation of substance is taking place. So it is a physical change.  

Thus, both the given processes are examples of only physical changes.

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235/92 U + 1/0 n -> 138/55 Cs + 96/37 Rb + 2 1/0 n
what kind of reaction?

Answers

Answer:

Nuclear fission

Explanation:

This reaction is called a nuclear fission reaction. In this reaction, a radioactive decay process occurs in which a heavy nucleus spontaneously disintegrates into two lighter nuclei and several neutrons, with the release of a large amount of energy.

The imbalance between the number of neutrons and protons is responsible for this spontaneous disintegration. Until a stable daughter cell forms, the reaction proceeds.

If a football is 625 mL volume and 0.64 g/mL density what is the mass

Answers

the mass is 400

explanation

the formula for density is density equals mass divided by volume so you plug in .64 for the density and 625 for the volume. .64= m/625. to solve for mass you would multiply both sides by 625 to get the mass

An aluminium atom has a mass number of 27 and a proton number of 13. How many neutrons does this aluminium atom contain?

Answers

Explanation:

14 neutrons

Explanation: The mass number is the total number of protons and neutrons in a nucleus. The atomic number is the number of protons in the nucleus. →27−13=14 neutrons!

A scientist thinks that ducks swim faster when they are in cold water. He tests two groups of ducks, one in cold water and one in room temperature water. He records how fast they swim.

Experimental Group:


Control Group:

Answers

Experimental group is the ducks in cold water
And the control group is the ducks in room temperature water

If you go to the moon your mass would ___.

stay the same

increase

Answers

Answer:

stay the same

Explanation:

you would weigh less if u stood on a scale but you're still the same mass unless you chopped of a body part or something

It Stays the same....

PLEASE HELP WILL GIVE BRAINLIEST​

Answers

It’s the atomic number.

what are 2 physical changes in the carbon cycle?

Answers

Answer:

Today, the carbon cycle is changing. humans are moving more carbon into the atmosphere from other part of the earth system. more carbon is moving to the atmosphere where fossil fuels, like coal and oil, are burned.more carbon is moving to the atmosphere as you may get rid of forest by burning the tree

Explanation:

hope this give you a hint

please answer its due in 10 minutes teacher just assigned it 5 minutes ago

Answers

Answer:

please upload a clearer picture

Answer:

1 Rain falling down

2)Freezing

3)Melting 4)Adding or removing energy from matter causes a physical change as matter moves from ome place to the other5)5he

animals need to consume other organisms for energy. how would you categorize them based on that information?

Answers

Answer:

They would be carnivores.

Explanation:

The Periodic Table of elements is arranged by:
O atomic mass
O number of neutrons
O number of electrons
O atomic number

Answers

Answer:

atomic number

Explanation:

Answer:

number of electrons and number of neutrons

which type of matter cannot be broken done into simplier substances by a chemical change

Answers

Answer: Because atoms cannot be created or destroyed in a chemical reaction, elements such as phosphorus (P 4) or sulfur (S 8) cannot be broken down into simpler substances by these reactions. Example: Water decomposes into a mixture of hydrogen and oxygen when an electric current is passed through the liquid

Explanation:

Answer:

elements because they are the simplest form of matter so they can't be broken

Explanation:

Hope this helps:)

Which orbital indicated on the periodic table???

S
P
D
F



Help ASAP I’ll mark as brainlister:)

Answers

I think it’s S umm let me know if I’m wrong but I’m. 80 precent sure it’s S

what's the difference between series and parallel circuit in table form?​

Answers

Hey :)

In a parallel circuit, a different amount of current flows through each parallel branch of the circuit.

In the series circuit, different voltage exists across each component in the circuit.

Whereas in the parallel circuit, the same voltage exists across the multiple components in the circuit.


Hope this helps :)
When there are two or more electrical devices in a circuit with an energy source, there are a couple of basic ways by which we connect them. They can either be connected in series or parallel. A series circuit is a circuit in which two components share a common node and the same current flows through them. However, in a parallel circuit, components share two common nodes. In this article, let us look at more differences between series and parallel circuit.

Which contribution is a modification to Thomson's plum pudding model?

Atoms are indivisible.
Electrons are scattered in an atom.
A positively charged nucleus sits at the center of an atom.
Atoms of the same element have the same properties.

Answers

Answer:

Option C: A positively charged nucleus sits at the center of an atom.

Explanation:

Thompson’s plum pudding model was a model proposed by Thompson to show that an atom consisted of more than one fundamental unit.

In Thompson's model, he suggested that the atom consisted of a cloud of positive charges which were surrounded by electrons which are negative charges distributed throughout.

Now, Thompson's experiment was later rejected by Ernest Rutherford when he carried out the gold foil experiment and came to the conclusion where he proposed a model that the atom consisted of mainly empty space and that all its positive charge are concentrated at its center and further surrounded by a cloud of electrons.

From the given options, the correct one is Option C.

Answer: Option C: A positively charged nucleus sits at the center of an atom.

Explanation:

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