The graph shows the speed of a car
traveling east over a 12 second
period. Based on the information in
the graph, it can be concluded that
in the first 6 seconds, the car is -
A changing its direction.
B experiencing less and less
friction.
moving at a constant speed
D climbing a steep incline.

Answer: D. The number of protons in the nucleus changes.

Explanation:

Transmutation occurs due to a change in the number of protons in the nucleus as this will cause the element to either become another isotope of the same element or an entirely new element altogether.

There are two types of transmutation; Natural and Artificial. Natural transmutation happens as unstable elements such as Uranium-238 try to find stability. They decay until they become a stable element. Artificial transmutation happens when atoms are collided with particles that cause them to change.

Answer:

examples of type of matter that circulate through the environment are carbon, nitrogen, and water

Answer:

matter is anything that occupies space and mass

Answer: In physics and chemistry, the law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed.

Explanation: Hope this help :D

Answer:

Coal, crude oil, and natural gas are all considered fossil fuels because they were formed from the fossilized, buried remains of plants and animals that lived millions of years ago. Because of their origins, fossil fuels have a high carbon content.

Explanation:

Answer:

0.474 moles

Explanation:

divide 10.62 by 22.4.

Explanation:

I think the answer is B cause i dont think All naturally occurring isotopes of elements are radioactive, as are isotopes formed in nuclear reactions. Im not sure

Answer:

The electric force between them decreases

Explanation:

The force between two charged particle is given by :

[tex]F=\dfrac{kq_1q_2}{r^2}[/tex]

Where

r is the distance between charges

If the distance between the charges is increased, the electric force gets decreased as there is an inverse relation between force and distance.

Hence, the correct option is (c) "The electric force between them decreases"

Answer:

functional

Explanation:

c is correct

Answer:

NaSO⁴(ads) ,ganadicate

Answer:

air is cooled by a heat source. Convection currents form when warm air rises and cold air sinks.

Answer:

Know this

1mole of a substance contains 6.022x10²³molecules

Now

8.55x10^-15moles x 6.022x10²³molecules/1mole

=5.15x10^9molecules.

Answer:

[tex]\boxed {\boxed {\sf P_2 \approx 3.53 \ atm}}[/tex]

Explanation:

In this problem, the temperature stays constant. The volume and pressure change, so we use Boyle's Law. This states that the pressure of a gas is inversely proportional to the volume. The formula is:

[tex]P_1V_1=P_2V_2[/tex]

Now we can substitute any known values into the formula.

Originally, the gas has a volume of 25.0 liters and a pressure of 2.05 atmospheres.

[tex]25.0 \ L * 2.05 \ atm = P_2V_2[/tex]

The volume is decreased to 14.5 liters, but the pressure is unknown.

[tex]25.0 \ L * 2.05 \ atm = P_2 * 14.5 \ L[/tex]

Since we are solving for the new pressure, or P₂, we must isolate the variable. It is being multiplied by 14.5 liters and the inverse of multiplication is division. Divide both sides by 14.5 L .

[tex]\frac {25.0 \ L * 2.05 \ atm }{14.5 \ L}=\frac{P_2 *14.5 \ L}{14.5 \ L}[/tex]

[tex]\frac {25.0 \ L * 2.05 \ atm }{14.5 \ L}= P_2[/tex]

The units of liters cancel.

[tex]\frac {25.0 * 2.05 \ atm }{14.5 }=P_2[/tex]

[tex]\frac {50.25\ atm }{14.5 }=P_2[/tex]

[tex]3.53448276 \ atm = P_2[/tex]

The original values of volume and pressure have 3 significant figures, so our answer must have the same.

For the number we found, that is the hundredth place.

The 4 in the thousandth place (in bold above) tells us to leave the 3 in the hundredth place.

[tex]3.53 \ atm \approx P_2[/tex]

The new pressure is approximately 3.53 atmospheres.

Answer:

More/ Alot? I think is what you are looking for?

Explanation:

It will definitely have some but I'm not sure on what word you are looking for.

Answer:

b. 62 g, which should equal the total mass of the products

Explanation:

According to the law of conservation of mass, which states that mass of a substance can neither be created nor destroyed, hence, the mass of the reactants of a reaction must be equal to the mass of the products in that reaction.

As stated in this question, if the total mass of reactants is 62g, then, in accordance to the law of conservation of mass, the total mass of products should also be equal to 62g.

Answer: Electrovalent bonds are produced when electrons are transferred from atoms of one element to atoms of another element, producing positive and negative ions. The bond which is formed by the transfer of electrons between the atoms is called electrovalent bond or ionic bond. Electrovalent bonds are only formed between metals and non-metals. Electrovalent bonds are not formed between two non-metals.

In simple words electrovalent bond involves the transference of a certain number of electrons to another dissimilar atom which has a tendency to gain electrons so that both acquire stable inert gas configurations. The electrostatic attraction always tends to decrease the potential energy. Hence, the potential energy of the system is much less than it was before the formation of an ionic bond.

Explanation: An Ionic bond is the bond formed by the complete transfer of valence electron to attain stability.

This type of bonding leads to the formation of two oppositely charged ions – positive ion known as cations and negative ions are known as anions.

The presence of two oppositely charged ions results in a strong attractive force between them. This force is an ionic or electrovalent bond.

Ionic bonds form between atoms with large differences in electronegativity, whereas covalent bonds formed between atoms with smaller differences in electronegativity.

The compound formed by the electrostatic attraction of positive and negative ions is called an ionic compound.

Answer:

2.059524x10^26 if im not wrong

Explanation:

avogadro's number is 6.022x10^23

Answer:

30.84atm

Explanation:

Using the ideal gas formula:

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821Latm/molK)

T = temperature (K)

According to the provided information in this question,

P = ?

V = 2.3 L

n = 3 mol

T = 15°C = 15 + 273 = 288K

Using PV= nRT

P = nRT/V

P = (3 × 0.0821 × 288) ÷ 2.3

P = 70.9344 ÷ 2.3

P = 30.84atm

Answer:

C)12.09 Ampere

Explanation:

V= IR

Where I= current of the system

R= resistance= 0.67 ohm

V= potential difference=8.1 volts

Substitute the values

8.1= I× 0.67

I= 8.1/0.67

=12.09 Ampere

Answer:

lowering the control rods

Explanation:

Answer:

The eruption of Mount Tambora eventually reduced the average global temperature by as much as 3 °C.

Explanation:

The Mount Tambora eruption was the largest and most destructive volcanic event in recorded history, expelling as much as 150 cubic km (roughly 36 cubic miles) of ash, pumice, and other rock, and aerosols—including an estimated 60 megatons of sulfur—into the atmosphere. As that material mixed with atmospheric gases, it prevented substantial amounts of sunlight from reaching Earth’s surface, eventually reducing the average global temperature by as much as 3 °C.

Answer:

T2 = 51.6°C

Explanation:

Given:

P1 = 1.01 atm

T1 = 25°C + 273 = 298K

P2 = 1.10 atm

T2 = ?

P1/T1 = P2/T2

Solving for T2,

T2 = (P2/P1)T1

= (1.10 atm/1.01 atm)(298K)

= 324.6 K

= 51.6°C

where Tc = Tk - 273

una célula procariota o procarionte es un organismo unicelular sin núcleo cuyo material genético se encuentra disperso en el citoplasma reunido en una zona denominada nucleoide. por el contrario las células que sí tienen un núcleo diferenciado del citoplasma se llaman eucariotas es decir aquellas en las que su ADN se encuentra dentro de un compartimento separado del resto de la célula.

Cuál es la fórmula química del ácido perclórico ?

fórmula química del ácido perclórico es HClO4.

Answer:

pls can I get a translation

Answer:

14.6

Explanation:

I just took the test

The amount of heat to raise the temperature is 14.7J.

The specific heat capacity of a substance is the quantity of heat needed to raise the temperature of a unit quantity of the substance by one degree. Calling the amount of heat added Q, which will cause a change in temperature ∆T to a weight of substance W, at a specific heat of material Cp, then Q = w x Cp x ∆T

By applying the formula, we get

Q = w x Cp x ∆T

Q = 300 * 2.46 * 20/1000

Q = 14.760J

Heat is energy that is transferred from one body to another as the result of a difference in temperature.

Learn more about the heat here: brainly.com/question/13439286

#SPJ2

Answer:

1549.6K

Explanation:

Using Charles law equation;

V1/T1 = V2/T2

Where;

V1 = initial volume (L)

V2 = final volume (L)

T1 = initial temperature (K)

T2 = final temperature (K)

According to the information supplied in this question:

V1 = 1.25 L

V2 = 6.50 L

T1 = 298K

T2 = ?

Using V1/T1 = V2/T2

1.25/298 = 6.5/T2

0.004195 = 6.5/T2

T2 = 6.5 ÷ 0.004195

T2 = 1549.6K

Answer:

2.5M

Explanation:

Molarity is the measure of the molar concentration of a solution. It is calculated using the formula below:

Molarity = n/V

Where;

n = number of moles (mol)

V = volume (L)

According to the information about Calcium chloride (CaCl2) provided in this question;

n = 0.5moles

M = 0.20M

Molarity = 0.5/0.2

Molarity = 2.5M

Answer: The awnser is B

Explanation: