Help please its science

Answer:

The invasive species would take over in the area and throw off the balance of the ecosystem.

Explanation:

Invasive species can harm both the natural resources in an ecosystem as well as threaten human use of these resources. An invasive species can be introduced to a new area via the ballast water of oceangoing ships, intentional and accidental releases of aquaculture species, aquarium specimens or bait, and other means.

Invasive species are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats. This can result in huge economic impacts and fundamental disruptions of coastal and Great Lakes ecosystems.

Hope this helped!

Answer:

i am not sure tho

Explanation:

Cd ²+ + F¹- = CdF2

F fluor is a non metal so he takes the electons that Cd gives so if Vd has to give 2 electrons and F can take only 1, there has to be 2 F atoms so all the electrona can be neutral and in ionisation

Answer:

C. Fe will stay positive and increase in magnitude.

Explanation:

Coulomb's law states that the force of attraction of repulsion between two charged particles is directly proportional to the magnitude of their charges and inversely proportional to the square of the distance of separation between them.

This means that if the size of the charges are large, the force acting on them will be large as well. Also if the distance between the two charges increases the force decreases. However, the force increases when the distance of separation decreases.

Like charges repel, therefore, two negative charges brought together will repel each other, and the distance between the two charges decreases, the force will increase in magnitude. Forces of repulsion are considered positive, therefore, the force, Fe, will stay positive and increase in magnitude.

Answer:

deforestation

Explanation:

our trees are very useful, it holds and keep our soil compact. so if deforestation takes place chances of flooding becomes high , and having lots of water softens soil and may cause erosin

Answer:

im sorry dude, just trying to complete my daily challenge

Explanation:

Answer:

Mass and volume are extrinsic properties.

A pail may contain water that is  1 kg  in mass and  1 L  in volume.

A drop of water may be  1 g  in mass and  1 mL  in volume.

Both are water, but they have different mass and volumes. Therefore you can't identify whether a substance is water just by measuring its mass and volume.

However, the ratio of the mass to volume (density) can be used to identify substances.

Answer:

Area of aluminum = 8.53 * 10⁻⁶ mm²

Area of steel = 4.27 * 10⁻⁶ mm²

Explanation:

1 in² = 645.16 mm²

1 lb = 0.453592 kg

Tensile strength of Grunerite = 1.5 * 10² kg/mm²

Tensile strength of aluminum = 2.5 * 10⁴ lb/in²

Tensile strength of aluminum = 2.5 * 10⁴ * (0.453592 kg/lb /645.16 mm²/in²)

Tensile strength of aluminum = 17.58 kg/mm²

Tensile strength of Steel No. 5137 = 5.0 * 10⁴ lb/in²

Tensile strength of Steel No. 5137 = 5.0 * 10⁴ * (0.453592 kg/lb /645.16 mm²/in²

Tensile strength of Steel No. 5137 = 35.15 kg/mm²

Area of Grunerite = 1.0 μm² = 10⁻⁶ mm²

Mass of Grunerite = area * tensile strength

mass of Grunerite = 10⁻⁶ mm² * 1.5 * 10² kg/mm² = 1.5 * 10⁻⁴ kg

Area of aluminum of same tensile strength as Grunerite = mass of Grunerite/ tensile strength of aluminum

Area of aluminum = 1.5 * 10⁻⁴ kg /  17.58 kg/mm²

Area of aluminum = 8.53 * 10⁻⁶ mm²

Area of Steel No. 5137 of same tensile strength as Grunerite = mass of Grunerite/ tensile strength of aluminum

Area of steel = 1.5 * 10⁻⁴ kg /  35.15 kg/mm² = 8.53 * 10⁻² mm²

Area of steel = 4.27 * 10⁻⁶ mm²

Answer:

red

1: The SCP/E-water molecule: oxygen atom (red color) and hydrogen atoms (white color).

Explanation:

Answer:

Burning wood is a chemical change.  Burning wood is an example of a chemical reaction in which wood in the presence of heat and oxygen is transformed into carbon dioxide, water vapour, and ash.

Baking an apple pie is a physical change because the apples in the pie start changing physically and the pie crust starts hardening and rising up.

Explanation:

Answer:

b.)

Explanation:

Because you would have a different weight on the moon because of it's low gravity

Answer:

,b dksb dfsj kdhfsu dfsh khfs fshk

Explanation:

Answer:

Mother board, it is essentially the brain

Explanation:

Answer:

A product

B coefficient

C script

D rectant

Answer:

B

Explanation:

I did it

Neither physical not chemical changes alter the atomic structure of a substance. The correct option is b.

When one chemical substance is transformed into one or more different substances, such as when iron becomes rust, a chemical change occurs.

Chemical changes occur as a result of chemical reactions, and the resulting substances have different properties due to the different arrangements of their atoms and molecules.

Physical changes affect a chemical substance's form but not its chemical composition.

Physical changes can be used to separate mixtures into their component compounds, but not to separate compounds into chemical elements or simpler compounds.

Physical or chemical changes have no effect on a substance's atomic structure.

Thus, the correct option is b.

For more details regarding chemical changes, visit:

https://brainly.com/question/23693316

#SPJ6

Answer:

4,7,2

Explanation:

Count the amount of electrons on the outer shell on each question.

a. 4 valence electrons

b. 7 valence electrons

c. 2 valence electrons

Answer:

6 hours

Explanation:

If it is traveling at 50mph and needs to reah 300 miles, to figure this problem out you would want to divide 300 by 50 to get 6 hours. So it will take six hours until the car travels 300 miles

Hope this helps.

Answer: A car travels at a rate of 50 miles per hour. how long will it take the car to travel 300 miles?

Explanation: .

Applying the distance formula:

d = rt

where

d is distance (300 miles)

r is rate (50 mph)

t is time (hours)

.

300 = 30t

300/30 = t

10 hours = t

Answer:

B - What we change

Explanation:

Dependent Variable - What we measure

Control Variable - what stays the same

Conclusion - what we conclude

Hope this can Help!

:D

Answer:

By Newton's laws. we know that when we apply a force in an object, then we also are applying acceleration, given by the equation F =ma, where F is the applied force, m is the mass of the object and a is the acceleration.

Now in this problem, we only have that James want to move objects from point A to point B. If the problem says that James does it at the same time for each object, then we could assume that each object has the same acceleration A.  

F = m*A

then if the mass of the o

object increases, the force needed to move it at the given acceleration will increase also, then the object that requires less force is the object with less mass, in this case, the toy car.

But in this problem never says that the objects are moved with the same acceleration (or in the same amount of time), then we could apply the same force in the four objects and eventually the four will get to the point b ( for example, the refrigerator would take a lot more of time than the toy car.

Answer:

it's c, the toy car.

Explanation:

Answer:

where two plates meet and ring of fire

Answer:

1. Volcanoes and earthquakes often occur where two plates meet.

Explanation:

2. Earthquakes and volcanoes are frequent along The Ring of Fire

Answer:

1. compounds

2. Covalent Compound

3. Not sure

4. ions

5. C

6. false

Answer:

1. compounds

2. Covalent Compound

3. Both substances have the same chemical formula

4. ions

5. C

6. false

Answer:

V₂ = 72.2 mL

Explanation:

Given data:

Initial volume = 146.0 mL

Initial pressure = 1.30 atm

Initial temperature = 5.00 °C (5.00 +273 = 278 K)

Final temperature = 2.00  °C ( 2.00+273 = 275 K)

Final volume = ?

Final pressure = 2.60 atm

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

P₁V₁/T₁ = P₂V₂/T₂  

V₂ = P₁V₁T₂  /T₁P₂

V₂ = 1.30 atm × 146.0 mL × 275 K / 278K × 2.60 atm

V₂ = 52195  atm .mL. K / 722.8 K.atm

V₂ = 72.2 mL

Answer:

Atomic radius increases by increasing the atomic number.

Explanation:

Atomic radius :

Atomic radius is the distance between nucleus of an atom to its outer most electronic shell.

Trend along group:

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

As the size of atom increases the ionization energy from top to bottom also  decreases because it becomes easier to remove the electron because of less nuclear attraction and as more electrons are added the outer electrons becomes more shielded and away from nucleus.

The given data show that the atomic number in increased from 4 to 88 it means atomic radius also increased from 1.53Å to 2.83Å. It means the given data is the elements of periodic table present in group. It is the data of 2nd group of periodic table.

Vertical Column is a group

Horizontal is Period

Aliki earth metals is a group

Lithium- Neon is both

Based on electrons are both

Number of electron shells is both

Answer:

yes

Explanation:

this is because the formula equation shows the details on how they solved the equation

Answer:

c.magnesium and zinc

Explanation:

you're welcome

Answer:

cellular respiration and photosynthesis :)

Answer:

1.) Cellular Respiration (2.) Photosynthesis

Explanation:

Oxygen (O2) is a reactant in the process of cellular respiration and a product of photosynthesis.