Help please ! ASAP neeeeeed and answerrrrrr

Help Please ! ASAP Neeeeeed And Answerrrrrr

Answers

Answer 1

Answer:

The answer is D

Explanation:

Answer 2

Answer:

A. Heater will only become warm when switch is closed.

Explanation:

Switches are used to control the flow of electrons (basically electricity). If you look at the other trials, you see that when switch is open, the bulb or fan does not run cuz no electricity can get to them. But when switch is closed, electricity gets to them. Thus, they will experience similar thing with the heater I assume cuz they have not said anything about battery voltage or anything preventing heater from heating.


Related Questions

PLEASE HELP ASAP DUE SOON WILL MARK BRAINLIEST

Answers

1 is B ca mg fe cu 2 is C

In the equation C H4 + O2 C O2 + H2 O, what are the products?

A) C H4 + H2 O
B) C O2 + H2 O
C) O2 C O2
D) C H4 + O2

Answers

The answer to this question is B; the products of this reaction is on the right after after the arrow

Answer:

Option B clearly shows the Products of the reaction

A mixture of oxygen( O2), dinitrogen monoxide (N2O), and argon (Ar) has a total pressure of 0.98 atm. What is the partial pressure of N2O, if the partial pressure of O2 is 0.48 atm and the partial pressure of Ar is 0.15 atm?

Answers

Answer: The partial pressure of [tex]N_{2}O[/tex] is 0.35 atm.

Explanation:

Given: Total pressure = 0.98 atm

Partial pressure of [tex]O_{2}[/tex] = 0.48 atm

Partial pressure of Ar = 0.15 atm

Partial pressure of [tex]N_{2}O[/tex] = ?

Total pressure is the sum of partial pressure of each component present in a mixture of gases.

Hence, partial pressure of [tex]N_{2}O[/tex] is calculated as follows.

Total pressure = [tex]P_{N_{2}O} + P_{O_{2}} + P_{Ar}[/tex]

Substitute the values into above formula as follows.

[tex]Total pressure = P_{N_{2}O} + P_{O_{2}} + P_{Ar}\\0.98 atm = P_{N_{2}O} + 0.48 atm + 0.15 atm\\P_{N_{2}O} = 0.35 atm[/tex]

Thus, we can conclude that the partial pressure of [tex]N_{2}O[/tex] is 0.35 atm.

Which statement accurately describes the formation of a covalent bond?

a. Protons are shared between atoms.
b. Electrons are shared between atoms.
c. Protons are transferred from one atom to another.
d. Electrons are transferred from one atom to another.

Answers

Answer: b. Electrons are shared between atoms

Explanation: electrons are shared, forming molecules, covalent compounds have weaker forces holding the molecules together

help!! please this is late!!

Answers

Answer:

pentene

Explanation:

pentene is 5 carbon chain with a double bond. The ending -ene indicates presence of double bond.

Some please help me!!! ASAP

Answers

bestie you good there?

are manifested as
instantaneous charge differences due
to molecular interactions.
Dipole-dipole
interactions
Dispersion
forces
Hydrogen
bonds

Answers

dipole: dipole interactions

- dispersion forces (London forces)

- hydrogen bonds

as the attractive forces between molecules becomes larger, it takes more energy to separate them

- as a result, vapor pressures, boiling points and melting points will be larger

occur between molecules that have a permanent dipole moment

- H-Cl----H-Cl

A sample of chlorine gas is stored at a temperature of -25oC. If the chlorine gas's temperature is raised to 52oC, its volume increases to 2.60 L. What is the initial volume of the gas?

Answers

Answer:

whats ur answer options

Explanation:

...

its b

When 35.47 g of sodium hydroxide react with boric acid (H3BO3), how many moles of sodium borate will be produced?

Answers

Answer:

5.83 g

Explanation:

First, you must start with a balanced equation so you can see the mole ratios.

NaOH + H₃BO₃ --> NaBO₂ + 2H₂O

You can see that it takes 1 mole of sodium hydroxide to form 1 mole of sodium borate. 1:1 ratio

Now you must calculate how many moles of NaOH 35.47 g equals.

Na = 22.99 amu

O = 15.99 amu

H = 1.008 amu

NaOH = 39.997 amu

35.47 g ÷ 39.997 amu = 0.08868 moles of NaOH

Since it's a 1:1 ratio, the same number of moles of NaBO₂ is created. Now you must convert moles to grams.

Na = 22.9 amu

B = 10.81 amu

2 O = 31.998 amu

NaBO₂ = 65.798 amu

0.08868 moles x 65.798 = 5.83 g

Help needed ASAP, I will mark your answer as brainliest.

Answers

I think the answer is C I think that bc I added 3 and the 2 which made it H5 and than multipled the 3 and the 2 which made it C6 than Cl

What is the molar mass of Na2CO3?
60.0 g/mol
O 106.0 g/mol
118.0 g/mol
141.0 g/mol

Answers

Answer:

The required molar mass is 106.0 g/mol

Explanation:

We know,

Molar mass of Na = 23 g/mol

Molar mass of C= 12 g/mol

Molar mass of O= 16 g/mol

∴Molar mass of Na2CO3 = {(23 X 2) + 12+ (16 X 3)}  g/mol

                                          = (46 + 12 + 48) g/mol

                                          = 106   g/mol

So, the required molar mass is 106.0 g/mol

Provide one example where a neutralization reaction is undesired/harmful. State the reactants and explain why it is harmful for this reaction to take place.

Answers

Answer:

You're in my science class wth

Explanation:

For instance farmers are using basic fertilizers to neutralize an acid soil –which is harmful for the plants- while basic solutions are added in the chimneys of factories to neutralize the acid smoke that they produce –avoiding the catastrophic effects of the acid rains. Acid released in the environment from industry creates acid rain which has many ecological effects. Acid rain makes waters acidic, and causes them to absorb the aluminium that makes its way from soil into lakes and streams. This combination makes waters toxic to crayfish, clams, fish, and other aquatic animals.

Condensation
11.What is condensation?
(1 Point)

change from solid to liquid

change from solid to gas

change from liquid to solid

change from liquid to gas

change from gas to solid

change from gas to liquid
12.What happens to the motion of particles after condensation?
(1 Point)

faster

slower
13.What happens to the kinetic energy of particles after condensation?
(1 Point)

increased

decreased
14.What happens to the distance between particles after condensation?Immersive Reader
(1 Point)

smaller

wider

Answers

11. change from gas to liquid

12. slower

13. increased

14. smaller

thenks and pls mark me brainliest :))

Help needed ASAP, I will mark your answer as brainliest.

Answers

The answer is C if I’m wrong than I’m sorry

what the total charge of an atom with 8 protons 10 neutrons and 10 electrons?

Answers

o2- should be the answer

Answer:

since an oxygen atom normally has 8 protons and 8 electrons, this ion has 10 electrons (-10 charge) and 8 protons (+8 charge) giving it a charge of -2 (-10 + 8 = -2).

Explanation:

1. Suppose the mechanical advantage of a machine is 4, and the input force is 20 N.
What is the output force?
0 16 N
0 24 N
80 N
O5N

Answers

Answer:

80 N

Explanation:

you can multiple

force equal to mass x gravity

What controls the DNA molecule?

Answers

Answer:

nucleotides

Explanation:

The four types of nitrogen bases found in nucleotides are: adenine (A), thymine (T), guanine (G) and cytosine (C). The order, or sequence, of these bases determines what biological instructions are contained in a strand of DNA. ... DNA is made of chemical building blocks called nucleotides.

hope that helped :)

When in history was the origin of Sci-Fi as
genre?

Why then?

Answers

Answer:

The term science fiction was popularized, if not invented, in the 1920s by one of the genre's principal advocates, the American publisher Hugo Gernsback. The Hugo Awards, given annually since 1953 by the World Science Fiction Society, are named after him.

Explanation:

find the no of atoms of Fe in 2 moles of Fe

Answers

Answer:

1mole of any substance contains 6.022x10²³atoms

2moles of Fe will contain

2x6.022x10²³atoms = 1.204x10²⁴atoms.

Have a Great day!

Help me with chemistry! I got this answer wrong , what would be the right one?

Answers

Answer:

I probably think it's to achieve a higher energy state

Explanation:

-

What is the mass number of a atom with 10 protons and 13 neutrons

Answers

The answer to ya question is 23

what energy is produced when particles vibrate?

Answers

sound energy is produced when particles vibrate. When an object vibrates, it causes movement in surrounding air molecules.

correct name for ZnS

Answers

Zinc sulfide (or zinc sulphide) is an inorganic compound with the chemical formula of ZnS. This is the main form of zinc found in nature, where it mainly occurs as the mineral sphalerite.

Let's say that you were given the following
problem:
A gas that exerts a pressure of 151 mm Hg in a
container with a volume of L will exert a
pressure of 166 mm Hg when transferred to a
container with a volume of 0.532 L.
Let's begin by assigning our variables. Let's say
that P1 = 151 mm Hg. What is V2?

Answers

Answer:

V2~0.4839M

Explanation:

We're going to use Boyles law to answer the question.

Boyle's law:

P1V1=P2V2

P1=151mmHg

P2=166mmHg

V1=0.532L

V2=?

V2=(P1 x V1)/P2

V2=(151 x 0.532)/166

V2~0.4839M

Hope it helps:)

Answer: C. unknown

Explanation: got it right on acellus

The interaction of the skeletal and muscular systems to create movement and locomotion is regulated by which organ system?

Answers

Answer:

The muscoloskeletal system

Explanation:

The musculoskeletal system is made up of the body's bones (the skeleton), muscles, cartilage, tendons, ligaments, joints, and other connective tissue that supports and binds tissues and organs together. Its primary functions include supporting the body, allowing motion, and protecting vital organs.

find the no of moles of ca in 8g of ca​

Answers

Answer:

Thus,there are 0.2 mole in 8 g of calcium.

The back of a water droplet acts as a mirror. When light hits the back of the water droplet, it bounces back to our eyes. This is called ____________.

Answers

The back of a water droplet acts as a mirror. When light hits the back of the water droplet, it bounces back to our eyes. This is called reflection.

Ca(OH)2+CO2=___+____​

Answers

Answer:

CaCO3 + H2O

Step by step explanation

Liquid A has weaker intermolecular forces than liquid B. Which liquid would demonstrate greater surface tension?

Answers

Answer:

ronger intermolecular forces will produce greater surface tension .

The intermolecular forces present in a sample of water are hydrogen bonds . The high surface tension of water allows a paper clip to "float" on the surface of the water. It's not actually floating, it's resting on top of the hydrogen bonds that exist between the water molecules at the surface. See the video below which shows a paper clip resting on the surface of water in a beaker.

If the hydrogen bonds are removed or disrupted, the surface tension will decrease. Watch what happens to the paper clip in the video when detergent (which will disrupt hydrogen bonds) is added to the beaker.

Here is video showing how a paperclip can "float" on water - it's actually being held up by the hydrogen bonds formed between water molecules which give water its surface tension.

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Can someone help me please? I’d appreciate it! Also please do not send me a link or delete your answer! Thanks

The piston of an internal combustion engine
compresses 218 mL of gas. The final pressure
is 15 times greater than the initial pressure.
What is the final volume of the gas, assuming
constant temperature?
Answer in units of mL.

Answers

Answer:

14.53ML

Explanation:

V1=218

V2=?

P2=15p1

USING BOYLE'S LAW

P1V1=P2V2

V2=P1V1/P2=P1(218ML)/15P1

=14.53ML

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