Chemistry High School

What energy transformation takes place when you turn on an electric light?
Chemical - light + heat
Mechanical - light + heat
Electrical - light + heat
Chemical electrical + heat​

Answers

Answer 1

Answer:

Electrical- light + heat

Explanation:

By turning on the light Electricity energy takes place which gives us light energy which generates heat

Related Questions

Erosion and weathering _____.

are usually slow processes
can only happen in dry climates
do not change landforms
do not significantly change Earth's surface

Answers

The answer is A. Are usually slow processes.

Erosion and weathering does not just occur in dry climates, it significantly changes landforms as well as the Earths surface, therefore the answer is A.

What does the molecular structure of Y show?

Answers

Answer:

the molecular structure of y shows that it is solid

Explanation:

because in solid state atoms are tightly packed and they are attached to them closely

Identify which level of organization is shown in the pictures. choose from the box. some words may be used more than once

Words in box: Organism, Cell, Tissue, Organ, Organ System

​

Answers

Answer:

1) Organ

2) Organism

3) Organ System

4) Tissue

5) Cell or Tissue (im not sure)

6) Organism

7) Organ

8) Organism

9) Organism


When forming an ionic bond, how does the configuration of valence electrons change

Answers

Answer:

Ionic bonds are a class of chemical bonds that result from the exchange of one or more valence electrons from one atom, typically a metal, to another, typically a nonmetal. This electron exchange results in an electrostatic attraction between the two atoms called an ionic bond.

Explanation:

Answer:

The electrons are transferred from one atom to another. The atom that loses electrons becomes positive.

Explanation:

I don't really understand what form of an answer you need but I hope this helps?

how does an indicator work

Answers

Answer: Indicators are substances whose solutions change color due to changes in pH

Explanation:

Answer:

EXPLANATION

Explanation:

[not sure exactly what you mean by indicator but here's my very basic answer lol] They are substances that change color due to changes in pH levels.

On what two days would the UK, Chile, South Africa, and Japan have an equal amount of day and night? O Winter Solstice and Summer Solstice 0 Spring Equinox and Fall Equinox 0 Fall Equinox and Summer Solstice O Winter Solstice and Spring Equinox​

Answers

I say both equinox because winter solstice has the least amount of sunlight and the summer solstice has the most ampunt of daylight so i said both equinox

answer asap please!!!!!!!!!!!!!!!!!!!!!

Answers

Answer: c.

Explanation: Because it will increase temperature  on thermometer y will decease.

12. Gavin is having a difficult time
moving his sofa across the living
room. He decides to place wheels on the legs of the sofa to make it easier, Which of the following forces is Gavin overcoming?
A Gravity
B Friction
C Buoyant force
D Unbalanced force

Answers

Answer:

Friction

Explanation:

the resistance that one surface or object encounters when moving over another.

Ice waters melt to form liquid water The water spreads out to match the shape of its container after heating on the stove the water begins to boil and change into steam which statement is true about this process

Answers

Answer:the water starts to boil and creates steam

Explanation:

Muscle Activity
A
B
с
8. The flow of energy through an ecosystem
Sun Food ATP
involves many energy transfers. The diagram
below summarizes the transfer of energy that
eventually powers muscle activity. The process of cellular respiration is
represented by
a. arrow A, only
c. arrow B, only
b. arrow C, only
d. arrows A. B. and C

Answers

I’m pretty sure it would be B

Rutherford concluded from his calculations that the volume of an atom Multiple Choice is filled with protons, neutrons and electrons. is mostly protons, with electrons revolving around the outside. is filled with electrons. is mostly empty space.

Answers

Answer: D is mostly empty space

Explanation: Rutherford's model shows that an atom is mostly empty space, with electrons orbiting a fixed, positively charged nucleus in set, predictable paths. Found this with his gold foil experiment

How do you determine the name of an element using protons, neutrons, and electrons?

Answers

Answer:How do you determine the name of an element using protons, neutrons, and electrons?

   By knowing the number of protons, you know the atomic number. If you know the atomic number you know which element it is in the Periodic Chart. A good Periodic chart should give you enough information to determine the name of the element.

Explanation:

please mark me as brainliest

Which state(s) of matter is/are easily compressible? Select all that apply
solid
liqued
gas

Answers

Answer:

gas is the answer

Explanation:

gasses are characterized by having no definite shape or volume.

True or false Cell division in Prokaryotes that form two genetically identical cells is know as fission.

Answers

It’s true
Because Binary fission is the method by which prokaryotes produce new individuals that are genetically identical to the parent organism.

PLEASE HELP ASAP

Question 2 of 10
Which is required for karst topography to form?
A. Limestone
B. Basalt
C. Quartz
O D. Granite

Answers

Answer:

Limestone

Explanation:

Limestone is required , hope it helps :)

A is the answer

Answer: Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves

Calculate how many moles of potassium (K) are present in a sample of 8.12x10^23 atoms of K​

Answers

Answer:

1.35 moles

Explanation:

Calculate how many

of potassium (K) are present in a sample of 8.12x10^23 atoms of K​

6.02 X 10^23 atoms are 1 mole.  how many 6.02 X 10^23 are in

8.12 X 10^23

divide 8.12 X 10^23 into sets of 6.02 X 10^23

(8.12 X 10^23)/(6.02 X 10^23) =1.35 moles

How does the equation below support the idea that matter is not created or destroyed?
6H20 + 6CO2 -----> C6H12O6+ 602

Answers

Answer:

The reaction 6CO2 + 6H2O ---> C6H12O6 + 6O2 is the chemical equation for photosynthesis. In this reaction, carbon dioxide and water

Explanation:

give me brainlest please

what products or services are un demand in your community​

Answers

CBD oils and products (profitable products) ...

Eco-friendly products (top trending products) ...

Natural skincare and cosmetics (popular beauty products) ...

Specialty teas (fast-selling items) ...

Diet fad-products (ideal for target audiences)

In a circus, a 50 kg clown is shot out of a cannon at 20 m/s. What is his momentum?​

Answers

Answer: 1000 kg * m / s

Explanation:

momentum is equal to mass times velocity!

50 times 20 is

1000

so momentum is 1000 kg * m/s

WILL MARK AS BRAINLIEST IF CORRECT

Answers

[tex]\huge\bold{\purple{\bold{⚡Q16. B⚡}}} [/tex]

Because: The balanced equation is - 2BrF5--->Br2+5F2

[tex]\huge\bold{\orange{\bold{⚡Q17.A,C,E⚡}}} [/tex]

A because 2 is in subscriptNot B because there are 3 atoms of oxygen in ozone, not in oxygen. C because 3 indeed is its coefficient Not D because 3 is coefficient not subscriptE is trueNot F because 3 is a coefficient, not 2

Group 8A (noble gases) don’t react with other elements because

a
they can have either a positive or a negative charge.
b
their outermost energy level is missing one electron.
c
their outermost energy level is full.
d
they readily form positive ions.

Answers

Answer: A hope this helps

What is true about wind?(1 point)

Wind can only be warm.
Wind can only be warm.

Wind cannot cause things to move.
Wind cannot cause things to move.

Wind can be still.
Wind can be still.

Wind is always safe.
Wind is always safe.

Answers

Answer:

safe? I guess it to me

Answer:

I think c.

Explanation:

I am not sure tho

口
10. Which describes an element?
O They can combine with other elements to form atoms.
They were created in the Earth's core.
O They cannot be broken down any further.
O They were all discovered at the same time.




Someone just help me fr UWU

Answers

Answer:

They were created in the Earth's core.

The rest make no sense

Gay-Lussac's Law explains how the temperature of a gas is related to its' .

Answers

Answer:

volume

Explanation:

A gas has a volume of 0.215 L and a temperature of -20.0 oC. The gas is heated to 60.0 oC at constant pressure. What will happen to the volume of the gas

Answers

Answer:

V1/T1 = V2/T2

we must convert temperature from °c to kelvin

so T1= -20+273.15=253.15

and T2 = 60 +273.15= 333.15

0.215/253.15= V2/333.15

V2= 0.28L

hence, volume increases a little bit

What is the Molarity of a Ca(OH)2 solution if 30.0mL of the solution is neutralized by 26.4mL of 0.25M HCI
solution?

Answers

Answer:

0.11M

Explanation:

What is the Molarity of a Ca(OH)2 solution if 30.0mL of

the solution is neutralized by 26.4mL of 0.25M HCI solution?

1L (1000 ml) of the HCl contains 0.25 moles of H ion

26.4 ml contains ( 26.4 X0.25/1000) moles of H ion ion

=0.0066 moles H ion

2HCl +Ca (OH)2-----> 2H2O +CaCl2

SO 2 H IONS NEUTRALIZE 1 Ca(OH)2 MOLECULE

00066 moles H ion neutralize 0.0033 moles Ca(OH)2

the 0.0033 moles are distributed over 30 ml, so the concentration of the

Ca(OH)2 IS 0,0033/(30/1000) =0.11 moles/liter or 0.11M

Explain the different types of chemicals?​

Answers

Ammonia, Benzene
Sodium hydroxide, bromine, acid, nitric acid, Acetone, Perchloric acid, Hydrofluoric acid, Alkali

High temperature refrigeration is that produced by:

Answers

Answer:

. an air-conditioning system

Which of the following is the correct path of light through a reflecting telescope?


eyepiece → primary mirror → secondary mirror → eye


primary mirror → eyepiece → secondary mirror → eye


primary mirror → secondary mirror → eyepiece → eye


secondary mirror → primary mirror → eye → eyepiece

Answers

primary mirror → secondary mirror → eyepiece → eye

hope it helps!

a student places iron metal over a flame, and begins to react with oxygen gas in the air. A red, powdery solid begins to form on the iron. What is the name of the red solid?

Answers

Answer:

Iron, as well as iron alloys, rusts because of a chemical reaction known as oxidation. When iron is exposed to moisture or oxygen, oxidation occurs. During this chemical reaction, iron is converted into iron oxide

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