somebody please help asap​

Somebody Please Help Asap

Answers

Answer 1
The correct answer is Earth
Answer 2
The answer to your question is Earth and also my name is juju too!!

Related Questions

How many atoms are there in 3.3 moles of strontium?

Answers

Explanation:

Multiply the moles Fe by 6.022×1023 atoms/mol

Three students shine lights onto the same spot on a white table. One student shines a blue light. Another student shines a red light. The third student shines a
green light. What color will the spot appear to be?
black
B orange
white
yellow
Help plz asap

Answers

the answer to your question yellow because green makes yellow

which of the following situations violates the law of conservation of energy?
A. a ball dropped from the top of a building in speed until it hits ground
B. a block sliding freely on level ice increases in speed until it hits a wall
C. A child playing on a swing moves fastest at the bottom of the swing's path
D. The height a ball bounces decreases with each bounce​

Answers

Answer:

A. a ball dropped from the top of a building increases in speed until it hits the ground.

A ball dropped from the top of a building in speed until it hits ground is the situations violates the law of conservation of energy. Therefore, option A is correct.

What is the law of conservation of energy ?

According to the law of conservation of energy, energy is neither created nor destroyed. When you roll a toy car down a ramp, and it collides with a wall, the energy is transferred from kinetic to potential.

Energy conservation does not imply energy savings. Instead, energy is neither created nor destroyed, according to the law of conservation of energy. When people use energy, it does not vanish. Energy is transformed from one form of energy to another.

The law of conservation of energy is violated when a ball is dropped from the top of a building at high speed until it hits the ground.

Thus, option A is correct.

To learn more about the law of conservation of energy, follow the link;

https://brainly.com/question/29775341

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in the reaction A+B = C+D if B is the excess what is the limiting reactant

Answers

Explanation:

Determining the Limiting Reagent

One reactant (A) is chosen, and the balanced chemical equation is used to determine the amount of the other reactant (B) necessary to react with A. If the amount of B actually present exceeds the amount required, then B is in excess, and A is the limiting reagent.

What is the volume of a 492.2g sample of Kr gas?
0.007601 L
131.6 L
5.870 L
21.97 L

Answers

Answer:

131.6 L

Explanation:

Ideal gas law is valid only for ideal gas not for vanderwaal gas. Therefore, the correct option is option B that is 131.5l. There is no force of attraction between the particles.

What is ideal gas equation?

Ideal gas equation is the mathematical expression that relates pressure volume and temperature. Ideal gas is a hypothetical gas. Vanderwaal behave as ideal gas at high temperature and low pressure.

Mathematically,

PV=nRT

where,

P = pressure=1 atm

V= volume=?

n =number of moles=given mass/ molar mass

                                =  492.2/ 83.79

                                = 5.87 moles

T =temperature = 273K

R = Gas constant = 0.0821 L.atm/K.mol

1× V = 5.87 × 0.0821 L.atm/K.mol × 273 K

V =131.5l

131.5l is the  volume of a 492.2g sample of Kr gas.

Therefore, the correct option is option B that is 131.5l.

To learn more about ideal gas equation, here:

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Think of a substance that does not dissolve in water. Any Examples?

Answers

Answer:

sand, flour, water

Explanation:

Some substances that don't dissolve in water:

- sand

-flour

-oil

-fats

-plastics

4 In which medium would an electromagnetic
wave travel the fastest?
A. air
C. vacuum
B. granite
D. water

Answers

Answer:

the correct answer is air.

Answer:

water

Explanation:

the medium an electromagnetic wave travel the fastest is in water

Metamorphic rock is formed from the weathering, erosion and cementing of sediments.

True
False

Answers

Answer:

False

Explanation:

Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.

This question is reffering to sedimentary rocks, so it's false.

Answer:

Weathering (breaking down rock) and erosion (transporting rock material) at or near the earth's surface breaks down rocks into small and smaller pieces. When the molten rock cools it forms an igneous rock. Metamorphic rocks can form from either sedimentary or igneous rocks.

Explanation:

True

Tikiya is conducting experiments on samples of pure copper (Cu). While collecting data, Tikiya records both physical and chemical properties of the metal. Which of the following is dependent on the amount of copper particles in the sample? A. Electrical conductivity B. Thermal conductivity C. Mass D. Density

Answers

uh i wouldnt really know but someone else could try helping you ya know

Answer: Mass

Explanation: I had the same question hope its right for you

Can someone please answer any of these?

Answers

Answer:

A polar covalent bond is defined as the bond which is formed when there is a low difference of electronegativities between the two non metals. Example: Phosphorous and chlorine, Nitrogen and hydrogen

Non-polar covalent bond is defined as the bond which is formed when there is no difference of electronegativities between the atoms. Example: Oxygen and oxygen

Ionic bond is formed when there is complete transfer of electron from a highly electropositive metal to a highly electronegative non metal. The electronegative difference between the elements is high.  Example: Potassium and chlorine

What chemical compound is H4PN?

Answers

Answer:

Diphosphane

Explanation:

Hope it helps

Help me plzz and thank u

Answers

Answer:

the terminator because i did this test

I NEED HELP ASAP !
1. How many molecules are in 643.21 grams of
Mg3(PO4)22
2. How much space (Liters) does 4.061 x 10-24
molecules of H202 take up?
3. How many H20 atoms are in 479.3 grams of
H20 gas?
4. How many grams does 80.34 L of Ca(NO3)2
weigh?
5. How many Liters of space does 893.7 grams
of CO2 take up?
6. How many grams are in 5139 x10425
molecules of Al(OH)3

Answers

Answer:

1.

643.21g  1 mol  6.022^23

262.87 g   1 mol

= 1.4735E24     [Mg3(PO4)2]

2.

4.061x10^24          1mol                22.4 (L)  

6.022^23       1mol

= 151 liters H2O2

3.

479.3g   1 mol   6.022^23

18.02g    1mol

= 1.60E25 H20 atoms

4.

80.34L   1mol       164.1

22.4L       1mol

588.6g   Ca(NO3)2

5.

893.7g   1mol       22.4

44.01g   1mol

= 427 L CO2 or 427.4

6.

5.39 x 10^25     1mol     78.01

6.022^23    1mol

= 6980g Al(OH)3

hope this helps!! :)

What is true about the structure or function of the plasma membrane?


A:It is made entirely of integral proteins.


B:Hydrophilic molecules attract the water the cell requires.


C:The processes of endocytosis and exocytosis occur here.


D:The double layer prevents anything from entering the cell

Answers

Answer: hi theree, the answer is c. the processes of endocytosis and exocytosis occur here

hope this helps, have a good day :)

Explanation:

Answer:

C. The processes of endocytosis and exocytosis occur here

Explanation:

I just took the k12 test

4. What is the correct surface areas for a 45nm
wide cube?

Answers

Answer:

A = 12150 nm²

Explanation:

The side of a cube, a = 45 nm

We need to find the surface area of the cube.

The formula for the surface area of a cube is given by :

A = 6a²

Substituting the value of a in the above formula.

A = 6(45)²

= 12150 nm²

So, the surface area of the cube is 12150 nm²

What is one factor of how species are distributed on the Earth's continents?​

Answers

Answer:

The most apparent general environmental factor affecting the distribution of a species is climate. Suitable conditions of temperature and moisture are vital to all organisms. Certain species are intolerant of cold; other species cannot live in warm climates.

PLEASE HELP!! ILL MARK BRAINLIST!! ​

Answers

Ok I will get a hold on you tomorrow morning to see

Hi! My responsibility is to add and protection to plant cells. what i am​

Answers

Probably a cell wall

Explain why photosynthesis and cellular respiration are the “real circle of life”

Answers

Explanation:Photosynthesis is important because the earth and all of the creatures in the sea and land need the plants to be able to feed themselves with the help of the sun and with cellular respiration, those plants are able to take in the carbon dioxide that we give and make into oxygen with we need. there fore without them we would not be able to exist.

The vertical columns on the periodic table can be called families or?

Answers

The vertical columns may also be called "groups".

PLEASE HELP!!!

True or False: Density is the property of a substance that describes how much mass of a substance is contained in the given weight of the substance.

A simple true or false please! ​

Answers

Answer:

False

Infered from the equation:

Density=[tex]\frac{Mass}{Volume}[/tex]

So it has no relation with weight of substance

Which of the following is not a form of precipitation?

A
groundwater

B
balls of hail

C
sleet

D
snowflakes

Answers

A.

Reason: cuz i need points noob

A 10-gram sample of water will lose the greatest amount of heat when its temperature is changed from 50°C to
1
10°C
2
20°C
3
30°C
4
40°C
Submit Answer
Hide Toolbar
Zoom: Standard
Na

Answers

Answer:

10°C

Explanation:

Here the problem deals with the relationship between the amount of heat lost and the temperature change of a body.

From the relationship below:

        H  = m C Δt

H is the quantity of heat

m is the mass

C is the specific heat

Δt is the change in heat

  We can see that the quantity of heat is directly proportional to the Δt, so as more heat changes occur, so also is the value of Δt .

What did Antoine Lavoisier’s experiments demonstrate?
A. Atoms always split into pairs during a chemical change.
B. Mass is neither lost nor gained during a chemical change.
C. Matter can be created during a chemical change.
D. Energy is neither lost nor gained during a chemical change.

Answers

Lavoisier disproved the phlogiston theory. He demonstrated that there was an element called oxygen that played a major role in combustion. He also showed that the mass of products in a reaction are equal to the mass of the reactants. In other words, no mass is lost in a chemical reaction.

please help PLSSSS
2020020200

Answers

Answer:Well the water molecules attract each other, and the oil molecules stick together.

sorry number two im not sure sorry:(

Explanation:

In the laboratory you dissolve 12.7 g of silver fluoride in a volumetric flask and add water to a total volume of 125. mL. What is the molarity of the solution?​

Answers

Answer:

Molarity = 2.4 M

Explanation:

Given data:

Mass of silver fluoride = 12.7 g

Volume of water = 125 mL (125 mL× 1 L /1000 mL = 0.125 L)

Molarity of solution = ?

Solution:

Number of moles of silver fluoride:

Number of moles = mass/molar mass

Number of moles = 12.7 g/ 41.98 g/mol

Number of moles = 0.30 mol

Molarity:

Molarity = number of moles of solute / volume in L

Molarity = 0.30 mol / 0.125 L

Molarity = 2.4 M

At what temperature will 41.6 grams of nitrogen gas (N2) exert a pressure of 1 point
1.07 atm in a 20.0 L cylinder?

Answers

Answer:

The temp is 176k

Explanation:

Complete the following equations (note that the equations are not balanced). Use the activity series if necessary. Li >>Ba > Sr> Ca > Na > Mg > AI > Mn> Zn > Cr> Fe > Cd > Co > Ni > Sn > Pb>H> Sb> Bi > Cu > Ag > Pd > Hg > Pt > Au Na+Cl2 → ?
- NaCl
- NaCl2
- Na2Cl​

Answers

Answer:

its C

Explanation:

Answer: NaCl

Explanation:

Na+ Cl2 ----> NaCl

Why does sulfur stink so bad?

Answers

Answer:

Since pure natural gas (a.k.a. methane) has no smell, utility companies add smelly, sulfur-containing odorants called mercaptans, or thiols, to warn us if anything is amiss with our pipelines. ... Olfactory receptors are present in specialized sensory cells called olfactory sensory neurons, which line our noses

Explanation:

hope this helps have a good rest of your night :) ❤

What is the percent composition of sodium in Na3PO4? Express your answer to one decimal place. No units required.

Answers

Answer:

42.07%

Explanation:

Molar mass of Na3PO4 = 23×3 + 31 +16×4

= 69+ 31+64= 164 g/mol

Mass of Na in this compound is 69

Percentage of sodium in sodium phosphate = 69/ 164×100

Percentage of Na = 42.07%

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