I NEED HELP WIT QUESTION THREE

Answer:

513.3 km/h

Explanation:

Answer:

true

Explanation:

ever heard of "plant perspiration"?

Answer:

2.17 moles of gas.

Explanation:

Explanation:

Magnesium - Group 2

Nitrogen - Group 5

The balanced equation for the reaction is given as;

3Mg + N₂ --> Mg₃N₂

Type of reaction;

Synthesis / Direct Combination

Answer:r=1.2 d=2.4

Explanation:

Radius is half the diameter and the diameter is 2.4 m

Answer:

Divide the 2.4 by 3.14

Explanation:

Answer:

a. more mosquitos more malaria

b. DDT worked to keep malaria numbers down by killing mosquitos

c. silent spring's great PR campaign got it banned and with the help of the EPA it was banned almost worldwide and if it was not banned manufacturing it stopped

d. it will continue to increase and 100s of millions of dead will be stacked even higher from malaria

Explanation: it is a tragedy, not sure if that is what you were given to read but that is the side that is rarely told

the birds all dying was not correct, it is not a cartcinogen, it doesn't poison the ocean

here is an interesting quote that is rather telling about how some with power make their decisions

My own doubts came when DDT was introduced for civilian use. In Guyana, within two years it had almost eliminated malaria, but at the same time the birth rate had doubled. So my chief quarrel with DDT in hindsight is that it has greatly added to the population problem.

– Alexander King, cofounder of the Club of Rome, 1990

Absolutely horrific, he is saying that the problem with DDT is that it saved lives

i need points

Explanation:

Answer:

According to The genic variations in atmospheric compositions and proper use of land or the other factors the cahs climate change

Answer:

The answer would most likely be 4.0004

Explanation:

Answer:

Chromosomes threads of DNA that make up a twisty, coiled shape. DNA strands carry genes, and traits are influenced by the genes that people get from their biological parents.

Explanation:

I got this from goggle ...

Answer:

An objects motion is called kinetic energy.  Which is energy that is cause by movement or motion

Explanation:

Answer:

An object at rest has zero velocity - and (in the absence of an unbalanced force) will remain with a zero velocity. Such an object will not change its state of motion (i.e., velocity) unless acted upon by an unbalanced force. An object in motion with a velocity of 2 m/s, East will (in the absence of an unbalanced force) remain in motion with a velocity of 2 m/s, East. Such an object will not change its state of motion (i.e., velocity) unless acted upon by an unbalanced force. Objects resist changes in their velocity

Explanation:

an object that is not changing its velocity is said to have an acceleration of 0 m/s/s. Thus, we could provide an alternative means of defining inertia

0.66 mol NO₂

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

4.0 × 10²³ molecules NO₂ (Nitrogen dioxide)

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Step 4: Check

Follow sig fig rules and round. We are given 2 sig figs.

0.664321 mol NO₂ ≈ 0.66 mol NO₂

Answer:

gvapor or gas to liquid

Explanation:

water which collects as droplets on cold surface when humid air is in contact with it

Answer:

c

Explanation:

The correct option for the following reaction is [tex]\gamma[/tex].

In the given reaction we can easily see that the reaction is already complete as a nuclear equation. There is no need for the product to balance the equation as it is not a chemical reaction where reactants and products interact to form new substances.

In this question we can see that a radioactive isotope of iodine-125 ( [tex]^{125}_{53} I[/tex] ) is decaying to produce another isotope of iodine-125 ( [tex]^{125}_{53}I[/tex] ) this process is called beta decay.

As no new element is required to balance the reaction we can say that the answer to this is [tex]\gamma[/tex] as it doesn't add up anything to the reaction.

Learn more about Beta decay at:

https://brainly.com/question/22624428

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Answer:

its "a" nd "C" Big Dawg if im wrong im sorry dawg been a min since i took a test like dis

Explanation:

Answer:

5.3 mL

Explanation:

We solve this problem using Archimede's principle, which states that the volume displaced by a submerged object is equal to the volume of the object.

With that in mind we calculate the volume of water displaced by the medallion:

As the medallion displaced 5.3 mL of water when submerged, the volume of the medallion is also 5.3 mL.

Answer:

falseeee a female has two X's and the male has XY

Explanation:

learned this in biology last year

Answer:

Explanation:

From your question you’ll have to assumethat the temperature is constant,since you do not have an initial temperature.

If thats the case thrn you can use;

P1V1=P2V2 to calculate the second volume.

P1=1200 torr

P2=760 torr

V1 = 20.4L

The volume occupied by 20.4 liters of Carbon dioxide (CO₂) at 1200 Torr when it is at Standard temperature pressure is 32.21 L.

Volume of gas can be calculated by arranging the ideal gas equation as:

P₁V₁ = P₂V₂, where

P₁ = given pressure = 1200 Torr

V₁ = given volume = 20.4 L

P₂ = standard pressure = 760 Torr

V₂ = to find?
Here, we consider the moles and temperature of gas is constant, on putting all these value on the above equation we get:

V₂ = (1200 × 20.4) / 760 = 32.21 L

Hence, 32.21 L is the required volume.

To know more about ideal gas equation, visit the below link:

https://brainly.com/question/20348074

Answer:

It depends on where it's located on the periodic table.

Explanation:

Metals are on left side of the periodic table except Hydrogen (H), which is a nonmetal, then there's the staircase, which has the metalloids, and on the right of the staircase are the nonmetals.

Answer:

ice cube melting

Explanation:

bcoz it's a chemical change

Answer:

It is caused by currents of electricity that flow in the molten core.

Answer:

Saltiness

Explanation:

There is no step-by-step. It h us is what it is.

Answer:

10.80

Explanation:

As per the equation, let us calculate the mole ratio. N2+3H2→2NH3. As per the equation one mole of nitrogen  reacts with 1 mol of hydrogen.

In terms of mass. 28.01 g of nitrogen needs 3 mol of hydrogen or 6.048 g of hydrogen.

We can set up the ratio;

28.01 g of

l

N

2

needs  

6.048 g of

l

H

2

1 g of

l

N

2

needs  

6.048

28.01

g  of

l

H

2

50.0 g of

l

N

2

needs  

6.048

×

50.0

28.01

l

g of

l

H

2

=

10.80 g of

l

H

2

Answer:

its C

Explanation:

Wind turbines work on a simple principle: instead of using electricity to make wind—like a fan—wind turbines use wind to make electricity. Wind turns the propeller-like blades of a turbine around a rotor, which spins a generator, which creates electricity.

Answer: I wanna say B

Explanation:

It makes the most scenes out of all of those answers let me know if im right:)

Answer:

The formula weight of the compound is

46.069 g/mol.

Explanation:

Determine the molar mass from the empirical formula (C2H6O) by multiplying the molar mass of each element in the compound by the number of atoms of it and adding the resulting masses of the elements:

molar mass of C2H6O = (2 × 12.011 g/mol) + (6 × 1.008 g/mol) + (1 × 15.999 g/mol) = 46.069 g/mol.

Answer:

10-10 above the 0 is positive and the ones below is - (negitive)

Explanation: