Which statement is false? a. A closed system does not interact with its surroundings. b. Matter and energy can be transformed in and out of a system c. Energy can be created or destroyed. d. If energy appears to be gained or lost, it has just changed into a different form

Answers

Answer 1
Statement C is false because the law of conservation of energy states that energy can never be created nor destroyed only changed in form

Related Questions

Under what conditions would pressure affect the reaction rate?
O A. If the reaction requires the use of a catalyst
B. If the reaction takes place between a solid and a liquid
C. If the reaction is between two liquids
O D. If the reaction occurs in the gas phase

Answers

what? what do you want

WILL VOTE BEST & GIVE 25 POINTS - PLEASE ANSWER
Your mom needs some pills from the Walgreens pharmacy for her diabetic medication. If one of the
pills weighs 650mg and the technician weighs exactly 15.6g of pills, how many pill were dispensed
and placed into the pill bottles. Show all work with units.

Answers

Answer:

24 pills

Explanation:

650 mg/1000 = 0.65 g

(There are 1000 mg in one g)

15.6g/0.65g=24

What does it mean for a solution to be saturated?
A. The solute will not dissolve in the solvent.
B. The solution contains more solute than should be possible.
C. More solute can still be added to the solution.
D. The maximum amount of solute is dissolved in it.

Answers

Answer:

D. The maximum amount of solute is dissolved in it.

Answer:

D. The maximum amount of solute is dissolved in it.

Explanation:

PLEASE HURRY!!!! The diagram shows 2 identical charged particle. How does the potential energy and the force of repulsion changes as the charges are brought closer together

Answers

Answer:

Please did you ever get an answer??

Explanation:

Im doing usa test prep too and its really late

How many atoms of carbon are in 6.00 g of carbon?

Answers

Answer:

12 atoms

C-12.thats all

Help ASAP pls will make brianlist

Answers

Answer:a+b

Explanation:

Why is it important to plants and animals that photosynthesis occurs?

Answers

Photosynthesis comes from plants that turn light energy into chemical energy which organisms eat and use to do their activities and thrive in their environment.

please I'm not really sure.

Answers

Answer:

a pea!

Explanation:

Answer:

A pea

Explanation:

We already know a electron is smaller than a proton.

about how many days does it take to go from one moon phase to another

Answers

Answer:

After one month, the Moon returns to the same location in the sky as the Sun and we see a New Moon again. The demo represents a month as 28 days for simplicity. But the real cycle of phases takes 29.5 days to complete.

what is the meaning to friction books​

Answers

Answer:

deje goodmorning

Answer:

Hurry please!! Need fast.

What type of chemical reactions is shown. Any number after the elements symbol represents the subscript.

Fe2(CO3)3 - Fe2O3 + 3CO2

Synthesis
Single Replacement
Decomposition
Combustion
Double Replacement

C12 + K3N -> N2 + KCI

Single replacement
Synthesis
Combustion
Double Replacement
Decomposition


CH4 + O2 -> CO2 + H2O
Double Replacement
Single replacement
Synthesis
Decomposition
Combustion

Na3N + AI(BrO3)3 -> AIN +Na(BrO3)

Double Replacement
Single replacement
Synthesis
Combustion
Decomposition

Answers

Decomposition
Single replacement?
Combustion
Double replacement

What is physical weathering NOT caused by? (pls i really need help with this!!)

Answers

Answer:

the changing tempure in rocks causing it to back apart

Combustibles fosiles ¿Por qué son inflamables los gases naturales?¿Dónde están los gases naturales?¿Cómo podemos sacar el aceite?¿Dónde está el carbón?¿Es el combustible fósil una fuente no renovable? AYUDAA

Answers

Answer:

1) Los gases naturales son inflamables porque el natural contiene metano junto con una pequeña cantidad de otros gases orgánicos, lo que hace que una mezcla de entre 5 y 15% de concentración de gas natural con aire u oxígeno se queme por completo cuando se enciende.

2) El petróleo crudo, que son depósitos de hidrocarburos que se encuentran en depósitos naturales en las formaciones subterráneas de la Tierra, se obtiene perforando un pozo en el yacimiento de petróleo a través del cual se permite que una parte importante del petróleo fluya fuera del yacimiento bajo la presión del yacimiento para recibir procesamiento e instalaciones de almacenamiento en la superficie

3) El carbón se forma cuando se aplica compactación y calor a la turba que proviene de material vegetal muerto enterrado durante un período de varios millones de años.

4) Los combustibles fósiles se consideran una fuente de combustible no renovable porque la velocidad a la que se produce es más rápida que la velocidad a la que se forma.

Una fuente de energía renovable, como la energía eólica, es producida por la naturaleza tan rápido como se consume para generar energía.

Explanation:

how many total atoms of each element are presented in the following formula ​

Answers

Answer:

Aluminium (Al): (3*2)+(5*2)=16

Sulphor (S): (3*1)=3

Oxygen (O): (4*3)+(3*1)=15

Which is there not a bacteria shape

Answers

Answer:

i cant help you, if you'd like you can re-post this with a photo of the bacterial shapes or explain them.

Explanation:

:)

(this is due tonight)
Give a real life example of something that is measured in velocity units.​

Answers

Answer:

Velocity of a satellite around the earth.

Velocity of a car while driving.

Explanation:

what is the name of the world's first scientist?​

Answers

Answer:

Aristotle is considered by many to be the first scientist, although the term postdates him by more than two millennia. In Greece in the fourth century BC, he pioneered the techniques of logic, observation, inquiry and demonstration.

Explanation:

hope this help:))

Help please I have 10 min.

Answers

Answer:

i cant see the question. i can try to help if you tell me the question.

Explanation:

also how do i use the comments???

Write a scientific explanation that compares the electrical forces of ethanol, hexane, and water.

Claim:


Evidence:


Reasoning:

Answers

Answer:

"Water and ethyl alcohol will both have dipole-dipole interactions.

Technically they will both have Hydrogen bonding, which is a type of dipole-dipole. This is due to the high electronegativity values of oxygen atoms compared to the carbon and hydrogen atoms the oxygens bond to. This causes regions of both of these molecules that have partial negative charges and other regions wind up with partial positive charges.

Hexane will not have any dipole-dipole interactions because it is a non-polar molecule. The intermolecular forces between hexane molecules will be dispersion forces."

Explanation:

Here is the place I found the answer:  https://socratic.org/questions/which-of-these-structures-has-dipole-dipole-interactions-water-h2o-ethyl-alcohol

All of this answer belongs to that person. I do not own any of this information.

2. How many formula units in 7.25 moles of Al2O3​

Answers

Answer:

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do it or he will hunt you down and kill u (lets destroy the moderators!!!!!!!!)

Explanation:

There are 12 inches in 1 foot and 2.54cm in 1 inch. How many feet are in 325 cm?

Answers

Answer:

27.0833 feet

Explanation:

How does ocean currents affect climate i need it in 8 sentences.

Answers

Ocean currents move both warm and cool water across many miles. Warm water can be carried to a cooler place like Alaska. It can bring warmer temperatures as well as warmer water to Alaska. Just like the warm water, cold water can do this as well. If cold water moves from Alaska to The Gulf of Mexico, it can cause the water and air to cool. As air travels over the ocean water vapor can condense into it. The current’s flow depends on what variables are in play. There are many different currents that connect together to heat up and cool off as they move.

A microwave oven uses electromagnetic radiation to heat water molecules in food or drink. This radiation has a frequency of 2.45 x 10⁹ Hz. Calculate its energy

Answers

Answer:

1.62 × 10⁻²⁴ J

Explanation:

Step 1: Given and required data

Frequency of this radiation (ν): 2.45 × 10⁹ Hz (2.45 × 10⁹ s⁻¹)Planck's constant (h): 6.63 × 10⁻³⁴ J.s

Step 2: Calculate the energy (E) of this electromagnetic radiation

We will use the Planck-Einstein's relation.

E = h × ν

E = 6.63 × 10⁻³⁴ J.s × 2.45 × 10⁹ s⁻¹ = 1.62 × 10⁻²⁴ J

How to convert 1348celsius to kelvin in stoichiometry reaction of a gas. The gas turned white not green.

Answers

Answer:

1621 K

Explanation:

How to convert 1348 celsius to kelvin

Celsius and Kelvin are both units for temperature. The relationship between both units is given as;

Kelvin (K) = Celsius ( °C )  + 273

Inserting the values from the question;

Kelvin (K) = 1348 + 273 = 1621 K

18)
Have you ever noticed things move or change in nature without the help of a human? Think about patterns of ripples formed in
sand on the playground, and a hole or dip formed in soit under a rain gutter. What is the BEST explanation of how things like this
happen?
A)
Soitand-rocks make changes tech season like teaves on trees
B)
Water and/or wind make changes to soil and/or rocks over time
C)
Gravity causes dirt on the playground and under gutters to move
D)
The Moon causes rocks and soil to move, like the tides of oceans
16)
Which process causes hillsides and mountains to gradually get smaller?
-)
rch
O
Oop

Answers

Answer:

B)

Explanation:

because the wind is moving the sand and the rain moves the soil

16) weathering and erosion

someone please help me with this????

Answers

Answer:

D po ayan po ang sagot ko salamat po

two students performed an investigation

Answers

Answer:

what was the investigation ???

Which of the following is the mass in grams of 4.25 × 10³ mol of N2?

Answers

Answer:

119,059.5 g/mol

Explanation:

First, find the mass of N2

On the periodic table, nitrogen is 14.007

Because there are two nitrogens, multiply it by 2

14.007*2 = 28.014 g

Now convert... (also don't let that exponent intimidate you! You can change it to 4250 if that makes it easier)

4.25 × 10³ mol * 28.014 g/1 mol = 119059.5 g/mol

.
Which charge kept the electrons in the atom?
Enter the answer
Check it

Answers

Answer:

hope it helps

Explanation:

Electrons are kept in the orbit around the nucleus by the electromagnetic force, because the nucleus in the center of the atom is positively charged and attracts the negatively charged electrons.

Help why isn’t
No one helping

Answers

Answer:

the second one

Explanation:

speed = Distance divided by time

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