Water
Specific Heat (J/c "C)
4.184
How much heat is needed to change the temperature of 50.0 g of water to 20.0°C

Answers

Answer 1

Answer:

The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object. Forces always come in pairs - equal and opposite action-reaction force pairs. 

Explanation:

The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object. Forces always come in pairs - equal and opposite action-reaction force pairs. 


Related Questions

the neuron of the basic unit of structure and _____of the nervous system

I NEED THIS ASAP

thank you

Answers

Answer:

with out answer choices i will assume dendrites

Explanation:

hey Google please how what types of elements are crop in P block right with example​

Answers

Answer:

The elements of groups 13, 14, 15, 16, 17, 18 are called p block elements.examples: boron (B), aluminium (Al), gallium (Ga), indium (In), thallium (Tl),and so on

Explanation:

Is this a compound,mixture or solution? (10 points)

Answers

Answer:

it is a compound it is a solution when they say they are ablle to seperate it give out they did not mix it

Explanation:

4. A 100.0 mL sample of 0.2516 M aqueous barium chloride was treated with an excess of sulfuric acid. The
resulting barium sulfate precipitate was filtered, dried, and found to have a mass of 4.9852 g. Compute the
percentage yield of barium sulfate in this process.

Answers

I wish I can help but I need help with the same one

Express the following as a whole number or as decimals: 3.5 x 10-3 m

Answers

Multiply
10.3
by = 36.05m
3.5

.

An agronomist hypothesized that add ran intots
the growth of Bermuda grass seedlings. He
planted three samples of grass and watered each
with a different pH solution.
How did plant growth in the pH 3.1 group compare
to plant growth in the other groups?

Answers

Answer:

D

Explanation:

Answer:

1. D

2. A

Explanation:

What is aluminum found in or used for? plz dont look it up

Answers

Answer:

Aluminum isn't found pure naturally, but its found mixed with other minerals in the earth. It's used to make cans, foil, kitchen utensils, window frames and even deodorant

Explanation:

Can someone explain cellular respiration?

Answers

Answer:

Explanation:

set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules[1

which two is it if u get it correct u get brainlist

Answers

I think B and C. Please reply me if I am correct.

Answer:

The answer is D and B

Explanation:

It is a quanity because it is because it is being measured in terms of numerical information.

Its is also continuous beause it does not show random change in the mathmatics, it it a slow yet constant change of measurement.

Which surface will most likely cause a rolling ball to slow down?A.grassB.iceC.tile

Answers

Answer:

grass

Explanation:

ice and tile are smooth and without any bumps or large ridges, unlike grass which is spiky and flexible. grass will most likely slow down a ball that is rolling, unlike answer choices B and C.

Answer:

grass

Explanation:

ice and tile are bothe a flat surface where grass has texture

explain all ways your atom and symbol for it would change if you removed 2 electrons from the atom

Answers

Each atom/element has an electron configuration

The electron configuration shows the energy level of the electron

Each electron configuration has 4 quantum numbers, namely n, l, ml, and ms

n = the principall = the angular momentum / azimuthal ml = the magnetic ms = the electron-spin

We make an example of the element Mg which is in group 2 with the atomic number 12

Electron configuration of Mg: [Ne] 3s² or 1s² 2s² 2p⁶ 3s²

if Mg removes 2 electrons then Mg will form a positive ion (cation) Mg²⁺

This cation is included in the monatomic ion because it is formed from one element (in contrast to the polyatomic ion, which is formed from two or more elements such as SO₄²⁻, ClO₃⁻)

Electron configuration of Mg²⁺ : 1s² 2s² 2p⁶

So atoms can be positively or negatively charged depending on removing or attracting electrons

How many atoms are in 0.250 moles of Rb?

Answers

Answer:

1.51*10^23 atoms Rb

Explanation:

Use dimensional analysis

What is the Scientific
Method?

Answers

Answer:

I just finished a unit on Scientific Method in my science class! Anyway, it's defined in the screenshots below. Hope this helps!

You have a graduated cylinder with 10 mL of water in it.
You add 300 g of lead weights, and the volume of the
water rises to 40 mL. What is the density of the lead?

Answers

Answer:

The answer is 10 g/mL

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass = 300 g

volume = final volume of water - initial volume of water

volume = 40 - 10 = 30 mL

We have

[tex]density = \frac{300}{30} = \frac{30}{3} \\ [/tex]

We have the final answer as

10 g/mL

Hope this helps you

365,000,000 scientific notation

Answers

3.65 X 10 to the power of 8

what is a group that does not change and represents a normal pattern of response

Answers

Answer:

Constant

Explanation:

Trust

Based on the oxidation states of the atoms in this reaction, answer the questions. 4Fe(0) + 3O2(0) → 2Fe2(3+)O3(2-) How many electrons does the iron half-reaction lose? How many electrons does the oxygen half-reaction gain? What is the total number of electrons that are moved in this oxidation-reduction reaction?

Answers

Answer:

Twelve electrons

Explanation:

If we look at the product side, we will notice that iron lost twelve electrons and oxygen gained twelve electrons.

Hence, we have 4Fe^3+ and 2O3^2- showing twelve electrons lost/gained.

Answer:

How many electrons does the iron half-reaction lose?

12

How many electrons does the oxygen half-reaction gain?

12

What is the total number of electrons that are moved in this oxidation-reduction reaction?  12

Explanation:

What are two substances that are useful because of their viscosity? (Please describe why they are useful)

Answers

Answer:

The two substances are Grease and Oil.

Explanation:

- Grease is used for other lubrication outside of the engine when it is really cold.

- Oil is used for lubricating when your engine is really hot.

How do I write the following :


One atom of Nitrogen
Five atoms of Nitrogen
One molecule of Nitrogen
Five molecules of Nitrogen

One molecule of Sulfur
One atom of Sulfur
Eight molecules of Sulfur

Answers

Answer:

Five molecules of nitrogen and eight molecules of sulfur

Explanation:

15 Each Points Please Help ASAP!! View Attached Image!! Will Mark Brainliest If All Are Answered!!

Answers

Answer:

Questions 1 is Letters

Questions 2 is H I believe

Questions 3 is hardness

Explanation:

hope I helped

Answer:

1. c

2. a

3. b

you're welcome

I'm not sure which category this is. But please help me on this!!

Two piles of heavy boxes must be lifted onto a shelf. Each pile has 20 boxes and each box is the same size and weight. Tom and Claudia are each responsible for a pile. Tom lifts each box straight up from the pile to the shelf. Claudia places a long, gradual ramp that leads from the pile to the shelf. She pushes each box up the ramp until it rests on the shelf.

(Tom used more force.)

Compare the distance each person moved each box. Who moved the boxes a longer distance?

Answers

Answer:

Tom

Explanation:

Simply because we see Claudia used a shortcut. Tom uses more physical force than Claudia, since Claudia only had to push the boxes into there required shelves.

Which statement best explains why heating a liquid affects its viscosity?
O The molecules move faster at higher temperatures and overcome attractions more easily.
O The molecules move faster at higher temperatures, and the attractions between them increase.
O The molecules move slower at higher temperatures and overcome attractions more easily
The molecules move slower at higher temperatures, and the attractions between them decrease.

Answers

Answer:

A

Explanation:

took test I'm pretty sure and found respond else where

Answer:

A) The molecules move faster at higher temperatures and overcome attractions more easily.

Explanation:

Edg 2020

Draw arrows for all of the attractive and repulsive forces between the negatively charged electrons and positively charged protons in these atoms. Make sure your arrows clearly show the difference between attractive and repulsive forces. Note that the particles without a charge label are neutral.

Answers

Answer:

Attraction

(e-) ---> <--- (H+)

Repulsion:

<---(e-) (e-)-->

Neutral:

(e-)       (Helium)

Explanation:

Accordingly to coulomb's law:

In the attraction, the hydrogen without an electron has a positive charge and needs to be fulfilled with a negative charge found in an eletron.

In the repulsion, both electrons has the same charge and repulse each other.

In the neutral case, the Helium is highly stable therefore the electron is not attracted.

a drop of water has a volume of about 0.05 mL. How many molecules of water are in a drop of water?

Answers

Answer:

20 drops

Explanation:

identify the PowerHouse of a cell
A. Golgi
B. lysosome
C. ribosomes
D. nucleus
E. mitochondrion
F. cytoplasm
G. rough endoplasmic reticulun
H. membrane

Answers

MITOCHONDRIA!!!! (E)

what is the heat of reaction H2 + 1/3N2 2/3NH3

Answers

Answer:

Please see the attachment:

Use the information below to explain why the atomic radius decreases down a group.

Answers

Answer:

Detail is given below

Explanation:

Atomic radii trend along group:

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

As the size of atom increases the ionization energy from top to bottom also  decreases because it becomes easier to remove the electron because of less nuclear attraction and as more electrons are added the outer electrons becomes more shielded and away from nucleus.

In A we can see that there is one positive charge and force of attraction is 2.30×10⁻⁸ N and distance is 0.10 nm

In B we can see that negative charge is further away from nucleus because of greater distance thus force of attraction will be less. 0.58×10⁻⁸ N

In C this distance further increases and force also goes in decreasing 0.26×10⁻⁸ N.

What is the relationship between the number of particles and the overall pressure?

When the volume of the gas is decreased, do the gas particles get smaller?
Yes or No?

Answers

Answer:

The volume of a given amount of gas is inversely proportional to its pressure when temperature is held constant (Boyle's law). Under the same conditions of temperature and pressure, equal volumes of all gases contain the same number of molecules

Explanation:

Determine what elements are denoted by the following electron configurations:

1s22s22p63s23p4s23d104p65s1

Answers

Answer:

Electron Configurations - Solutions

Note: The electron configurations in this worksheet assume that lanthanum (La)

is the first element in the 4f block and that actinium (Ac) is the first element in the

5f block. If your periodic table doesn’t agree with this, your answers for elements

near the f-orbitals may be slightly different.

1) sodium 1s2

2s2

2p6

3s1

2) iron 1s2

2s2

2p6

3s2

3p6

4s2

3d6

3) bromine 1s2

2s2

2p6

3s2

3p6

4s2

3d104p5

4) barium 1s2

2s2

2p6

3s2

3p6

4s2

3d104p6

5s2

4d105p6

6s2

5) neptunium 1s2

2s2

2p6

3s2

3p6

4s2

3d104p6

5s2

4d105p6

6s2

4f145d106p6

7s2

5f5

6) cobalt [Ar] 4s2

3d7

7) silver [Kr] 5s2

4d9

8) tellurium [Kr] 5s2

4d105p4

9) radium [Rn] 7s2

10) lawrencium [Rn] 7s2

5f146d1

11) 1s2

2s2

2p6

3s2

3p4

sulfur

12) 1s2

2s2

2p6

3s2

3p6

4s2

3d104p6

5s1

rubidium

13) [Kr] 5s2

4d105p3

antimony

14) [Xe] 6s2

4f145d6

osmium

15) [Rn] 7s2

5f11 einsteinium

16) 1s2

2s2

2p6

3s2

3p6

4s2

4d104p5 not valid (take a look at “4d”)

17) 1s2

2s2

2p6

3s3

3d5

not valid (3p comes after 3s)

18) [Ra] 7s2

5f8

not valid (radium isn’t a noble gas)

19) [Kr] 5s2

4d105p5 valid

20) [Xe] not valid (an element can’t be its own electron configuration)

What is the darkest layer of soil at the top of the photograph called?
A. Aggregate
B. Subsoil
C. Bedrock
D. Topsoil

Answers

Answer: D.)Topsoil

Explanation: Have agriculture

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