Which element gains two electrons to fill its outermost energy level?
(1 point)
O fluorine (F)
O magnesium (Mg)
O selenium (Se)
lithium (Li)

Answer:

scam it says 15 points

Explanation:

Answer:  The biology or linguistic  term?

Explanation: The introduction of a plant or animal to a region where it is not indigenous.

Answer:

LiF (lithium fluoride)

Explanation:

Lithium ions have a charge of +1 and fluoride ions have a charge of -1. The formula unit for lithium fluoride is LiF, which means that the lithium and fluoride ions are present in a 1:1 ratio. So the positive and negative charges cancel each other, and the compound lithium fluoride is neutral.

:A 40kg girl is pushing a 40kg boy in a 20kg toy wagon....the wagon is moving at a constant speed of 2.0m/s. Calculate the combined kinetic energy of the boy and wagon.

answer:120J

hope this helped

Answer:

may have liability on the contracts he negotiates on behalf of the prospective corporation

Explanation:

Answer:

element fluorine

Explanation:

__________________________

Answer:

The most extremely reactive nonmetal is the halogen fluorine.

Explanation:

Halogens are the most reactive nonmetals on the periodic table, but fluorine is by far the most dangerous and reactive because of its high electron affinity. It also considered the most dangerous as it bonds with many elements and acts exposively.

The partial pressure of the oxygen in the sample of oxygen gas collected over water is 360.2 torr.

According to Dalton's law of partial pressure, the total pressure of a mixture of  gases is the sum of partial pressures of all the gases in the mixture. From Dalton's law;

PT = P1 + P2 + P3 + ..........

The partial pressure of water at 30∘C is 31.8 torr, Hence;

Total pressure = Partial pressure of oxygen + Vapor pressure of water

Total pressure = 392 torr

Partial pressure of oxygen = Total pressure - Vapor pressure of water

Partial pressure of oxygen =   392 torr -  31.8 torr = 360.2 torr

Learn more: https://brainly.com/question/1446583

Answer: 160.0g

Explanation:

130g < 160g

Answer:

2) 100

3) 1000

4) 10

5)100

6)1000

7)100

8)10

9)10

10)100

11)10

12)10

13)1

14)1

15)1

Answer:

the third option

Hope this helps

Answer: Weather refers to short term atmospheric conditions while climate is the weather of a specific region averaged over a long period of time. Climate change refers to long-term changes.

Answer:

370 cm^3

Explanation:

Here, Density= Mass / Volume

=1.00/370

=370 cm^3.

The density of the metal is approximately 2.70 kg/dm³.

Density (ρ) is calculated by dividing the mass (m) of an object by its volume (V): ρ = m/V.

Given:

Mass (m) = 1.00 kg

Volume (V) = 370 cm³ = 0.370 dm³

Density (ρ) = 1.00 kg / 0.370 dm³ ≈ 2.70 kg/dm³

The density of the metal is approximately 2.70 kg/dm³.

Density is a measure of how much mass is contained within a given volume. In this case, a metal with a mass of 1.00 kg occupies a volume of 370 cm³.

By dividing the mass by the volume, the density is calculated. The resulting value of 2.70 kg/dm³ indicates that for every cubic decimeter (dm³) of volume, the metal has a mass of 2.70 kg.

Know more about density:

https://brainly.com/question/29775886

#SPJ3

1.  We have to divide the coefficient of equation I by 2 to get equation II.

a. Both equations are balanced but equation II is the correct way to write a

balance equation.

b. It will be correct if we divide equation II coefficient by another factor

but  we will get fractions as coefficient. For example

[tex]\frac{1}{2}[/tex]SnO₂ + H₂→  [tex]\frac{1}{2}[/tex]Sn + H₂O

c. The correct method is checking if the number of moles of element on

the reactant side is same as the those on the product side. And the

conventional way is making sure the coefficients are whole numbers.

i.   2SnO₂ + 4H₂ → 2 Sn + 4H₂O

ii.  SnO₂ + 2H₂→  Sn + 2H₂O

We have to divide the coefficient of equation I by 2 to get equation II.

Both equations are balanced but equation II is the correct way to write a

balance equation.

If we divide the coefficients of equation II by another number, we will not

get a whole number coefficients. The coefficient will be fractions , it will

be  correct but its not conventional.  

The best method to know if equation is written the correct way is checking

if the coefficient are in the lowest whole number factors.

we also have to check if each moles of elements found in the reactant is

the same in the product side.

read more: https://brainly.com/question/16609984?referrer=searchResults

Answer:We have to divide the coefficient of equation I by 2 to get equation II.

Explanation:

I'm sorry but cant understand if this is a problem or not

Answer:

Yes

Explanation:

Because Dallas is part of Texas

Answer:

4FeS +3O2-2Fe2O3+4SO2

Answer: So we have y = (1/4)x - 1

Hello,

We'll assume a straight line, which takes the form y = mx + b, where x is the slope and b is the y intercept (the value of y when x = 0).  We can calculate m, the slope, by recognizing that slope is the rate of change of y as x is increased.  The increase in y (the "rise") divided by the increase in x (the "run") between those two points will give us the "rise/run", which is the slope, m.

Change in x:  (8 - (-4)) = 12 (the run)    Change in y:  (1 - (-2)) = 3 (the rise).  The rise/run is 3/12, or 1/4.  The slope is 1/4.

y = (1/4)x + b

We can calculate b by using one of the points provided (I'll choose (8,1)) and solve the equation for b:

1 = (1/4)*8 + b

b = -1

So we have y = (1/4)x - 1

Here for any help Erikh.

Explanation:

Answer:

They are the same because the potential and kinetic energy is added, they equal the same as the mechanical.

Explanation:

Answer: Iodine,

, is located in period 5, group 17 of the periodic table, and has an atomic number equal to

53

.

plss brainleist

Explanation:

The Answer is option A. Life science

hope it helps :)

Answer:

H+(aq) + OH-(aq) -> H2O(l)

Explanation:

This is neutralization

Answer:

ahahahah

Explanation:

Answer:

I think its 3.0M

Explanation:

Answer:

3.0M

Explanation:

We don't have n yet, so we need to use n =m/M to find it out

n = 30g/101.1032 g/mol

n = 0.2967265131mol

M = n/V

100mL = 0.1L

M =  0.2967265131mol/0.1L

M = 2.96726mol/L

Rounded to 3.0M

* I hope this helps you with your quiz!.Please check the explanations for further understanding. (I recommend reading them in order.) Have a whimsical week!

Answers:

1. a flowerpot sitting on a table

2. a leaf falling to the ground

3. The object's motion does NOT change.

4. change speed, direction, or both.

5. True

Explanations:

1. Net force is the sum of the forces acting upon an object. Often, this will be shown through diagrams with arrows pointing in certain directions and a certain amount of Newtons. A net force of zero means that the object is steady and stable in its motion (whether moving or staying still). With zero net force, an object will not change its speed nor direction. A football in the air is not the answer as gravity pulls it back down towards Earth, creating a change in both speed and direction. A cat running after a mouse is likely not the answer as well. Realistically, the cat and mouse will not continue at a constant speed in the exact same direction forever. Thus, a cat running after a mouse does not make sense. A flowerpot sitting on a table is not moving at all. It is not changing speed or direction; therefore, it does have a net force of zero. A speeding car is, well, speeding. Its speed is changing, just as the answer claims. Since a flowerpot sitting on a table is the only answer choice that has a net force of zero, it is the answer.

2. Unbalanced forces are unequal forces acting on one another from/in different directions. Unbalanced forces must be moving in some way. If they are not, then the forces are equal and balanced instead. They have to be changing direction and/or changing speed. A sweater sitting on a store shelf does not move at all; it never changes direction nor speed. It is an example of balanced, not unbalanced, forces. A letter sitting in a mailbox is just like the sweater - it doesn't change speed or direction, so it can't be an unbalanced force. A fence around a garden is planted firmly into the ground, thus unable to move in the first place. With no change, it is a balanced force, rather than an unbalanced one. A leaf falling to the ground is, according to the wording of the answer choice, currently falling. Gravity is acting upon it and pulling it towards the ground.  Since the leaf falling is in motion, or moving, there are unbalanced forces acting on it (specifically gravity pulling the leaf down). Therefore, the falling leaf is an instance of unbalanced forces.

3. Balanced forces are the opposite of unbalanced ones - they are equivalent forces that act in opposite directions in order to contradict/cancel each other. Since balanced forces are, well, balanced, neither one will overpower the other. No chance will occur as long as the forces remain balanced (ones). This lines up directly with Isaac Newton's first law of motion, which states that an object will continue to be at rest, or continue in a constant speed and direction, unless acting on by an external force. The external force will unbalance the forces, thus causing a change in speed and/or direction. Therefore, since balanced forces are forces that will not change speed nor direction, the answer should be that the object's motion does not change.

4. As stated earlier, unbalanced forces act in different directions with different amounts of power/Newtons. One must be/is more powerful than than rest; this is so that the unbalanced forces can be, you know, unbalanced. Unbalanced forces can cause a change in speed and a change in direction (it can be both or only one). Thanks to this information, we can conclude that the answer to this question is to change speed, direction, or both.

5. Balanced forces and a net force of zero are both included in the first law of motion. Both of these forces will continue at a consistent speed and direction until acted upon by another force. Since both of these terms have the same definition, it is reasonable to say that they are synonyms (which they are). Balanced forces and zero net force mean the same thing (and are the same thing). So, it is true that balanced forces is when the net force is zero.

The object has a net force of zero acting on it is  a flowerpot sitting on a table. A leaf falling to the ground  has unbalanced forces acting on it.The object's motion does not  change when the forces acting on it are balanced.When unbalanced forces act on an object that is in motion, the object can change speed, direction, or both.The statement a balanced forces is one in which the net force is zero is true.

Force is defined as a cause which is capable of changing the motion of an object. It can cause an object which has mass to change it's velocity. It is also simply a push or a pull . It has both magnitude as well as direction.Hence, it is a vector quantity.

It has SI units of Newton and is represented by'F'.Newton's second law states that force which acts on an object is equal to momentum which changes with time. If mass of object is constant, acceleration is directly proportional to net force acting on an object.

The concepts which related to force are thrust and torque .Thrust increases the velocity of an object and torque produces change in rotational speed of an object.

Learn more about force,here:

https://brainly.com/question/26115859

#SPJ2

Answer:

You protect yourself and others from numerous injuries. Such safety equipment would be goggles, tongs, gloves(sometimes), hair pulled back, sleeves rolled up, etc.

Explanation:

Answer:

D. Continental Drift

Explanation:

Continental drift describes one of the earliest ways geologists thought continents moved over time. Today, the theory of continental drift has been replaced by the science of plate tectonics.  

The theory of continental drift is most associated with the scientist Alfred Wegener. In the early 20th century, Wegener published a paper explaining his theory that the continental landmasses were “drifting” across the Earth, sometimes plowing through oceans and into each other. He called this movement continental drift.

Answer:

tyeh

Explanation:

4403 9324 7244 25886543322267

Answer:

that acetic acid is the common name, whereas ethanoic acid is the chemical name given by IUPAC for the same compound.

Answer:

Bro its expired milk duh

Explanation: