Can someone plz help me with this plz?????

Can Someone Plz Help Me With This Plz?????

Answers

Answer 1

Answer:

We can't see the options so we don't know what we can put

Explanation:


Related Questions

All of the alkaline earth metals are similar in that – they are all artificially made elements they all have similar atomic weights. they all have the same ionic charge. they all show variable valences.

Answers

Answer:

they all have the same ionic charge.

Explanation:

Alkaline earth metals are group 2 metals on the periodic table. They are divalent elements because they have two valence electrons and ionize by donating these two valence electrons. Elements in this group have the same numbers of electrons in their outermost shell of their atoms. i.e. they all have the same number of valence electrons and ionic charge.

At 313° K, the volume of a gas is 50.0 ml. At constant pressure, what is the new volume of the
gas if the temperature is decreased to 293°K?

Answers

Answer:

46.80 ml

Explanation:

V1 =50ml

T1 =313K°

T2 = 293K°

V2 =?

V1/T1 =V2/T2

V2=V1*T2/T1

V2=50*293/313

46.80ml

Is iron rusting a chemical reaction? Explain why or why not.

Answers

Answer: Yes- Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur. Rusting is an example of a chemical change. A chemical property describes the ability of a substance to undergo a specific chemical change. A chemical property of iron is that it is capable of combining with oxygen to form iron oxide, the chemical name of rust.

Hope this helps.... Stay safe and have a Merry Christmas!!!!!!!!!!!! :D

How many atoms are in the chemical formula shown? HCIO3

Answers

Answer:

5

Explanation:

chemical formulas show what atoms are in a molecule.  In this case there is 1 hydrogen (H), 1 chlorine (Cl), and 3 oxygens (O).  The 3 behind the oxygen is a subscript and tells us that there are 3 oxygen atoms.

Another example is H2O which as 3 atoms. 2 hydrogens (H) and 1 oxygen (O).  This formula has a subscript 2 behind the hydrogen showing that there are 2 hydrogens.

A wheelbarrow has wooden handles that are 3.5 feet long. The axle on the wheel is the
fulcrum and is 0.5 feet from the end. What is the MA? You know you can probably lift 70
pounds without too much effort. How heavy of a wheelbarrow load can you lift?

Please answer

Answers

14 to the fifth power

Most of the elements on the Periodic Table are metals.
True
False

Answers

Answer:

the answer is true

Explanation:

I hope so it is helpful to u

The __________________ is the process by which gases in the atmosphere absorb and reradiate heat.

Answers

Answer:

Greenhouse effect

Explanation:

Answer: water vapor, carbon dioxide and other gases absorb and reradiate thermal energy.

Explanation:

How much energy is required to boil 65 grams of 100°C water
And then heat the steam to 150°C?

Answers

Answer:

13598 J

Explanation:

Q = m × c × ∆T

Where;

Q = amount of energy (J)

m = mass (grams)

c = specific heat capacity

∆T = change in temperature

m = 65g, specific heat capacity of water = 4.184J/g°C, initial temperature= 100°C, final temperature = 150°C

Q = 65 × 4.184 × (150 - 100)

Q = 271.96 × 50

Q = 13598 J

Hence, 13598 J of energy is required to boil 65 grams of 100°C water and then heat the steam to 150°C.

What type of ion would radium (88Ra) become when forming an ionic compound, and what would the oxidation number be?

A) a cation with a +2 charge

B) a cation with a -2 charge

C) an anion with a +1 charge

D) an anion with a -1 charge

Answers

Answer:

The correct option is A

Explanation:

Radium is an atom with the atomic number of 88. It is a metal found in group 2 of the periodic table; meaning that it has two valence electrons in it's outermost shell. As a metal that wants to form an ionic compound, radium would have to lose these two valence electrons to become a divalent positively charged cation (Ra²⁺). Thus, the correct option is A

Liquid or solid water that falls to the ground is called

Answers

Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. It is the primary connection in the water cycle that provides for the delivery of atmospheric water to the Earth. Most precipitation falls as rain.

Which is the largest measurement? *
grams
Milligrams
Kilograms
Centigrams

Answers

Answer:

Kilograms

Explanation:

[tex]--------------------------------------------[/tex]

Microgram = 0.000001 Grams = Smallest Unit of Weight

1 ) Milligram = 0.001 Grams =

2 ) Centigram = 0.01 Grams

Decigram = 0.1 Grams

3 ) Gram = 1 Gram

Dekagram = 10 Grams

Hectogram = 100 Grams

4 ) Kilogram = 1000 Grams = Largest Unit of Weight = Answer

[tex]--------------------------------------------[/tex]

Hope this helps! <3

[tex]--------------------------------------------[/tex]

Kilograms are the largest unit among the options listed.

The metric system is a decimal-based system of measurement widely used around the world. It provides a standardized and convenient way to express measurements by utilizing prefixes that represent powers of 10.

In the metric system, the base unit for measuring mass is the gram (g). The gram is a relatively small unit, and to express larger or smaller masses, prefixes are added to the base unit. Here are some commonly used metric prefixes for mass.

The largest measurement among the options provided is kilograms (kg). Kilograms are larger units of measurement compared to grams (g), milligrams (mg), and centigrams (cg). The metric system follows a decimal-based system, where each unit is 10 times larger or smaller than the adjacent unit.

1 kilogram (kg) is equal to 1,000 grams (g), 1,000,000 milligrams (mg), and 10,000 centigrams (cg). Therefore, kilograms are the largest unit among the options listed.

Learn more about kilogram from the link given below.

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What separates the inner planets from the outer planets in our solar system?
()Comet Belt
()Asteroid Belt
()Their differences
()Distance

Help plss!!

Answers

Answer:

the answer is B Astroid Belt

(02.03 LC)
What term is used to describe the lowest energy level of a particle? (5 points)

Answers

Explanation:

Answer and Explanation: Photon is the basic unit of light. The excited state refers to the state when any specified electron gained some energy from surrounding. In the ground state, the electron carries no energy and this refers to its lowest energy level.

What is the freezing point of neon F and C?

Answers

Answer:

-415.5°F and -246°C

Explanation:

PLEASEEE answer correctly! I will give u 10pts and brainleist if u get it right please:) (SCIENCE)

Answers

Answer:

The answer is 2

Explanation:

when viewed from earth number 2 would be a waning gibbous

How many grams are there in 2.34x10^23 atoms of Cu?

Answers

Answer 1


Explanation

Because it’s 1

The mass of the 2.34 × 10²³ atoms of copper is equal to 24.68 grams.

What is Avogadro's number?

The Avogadro constant can be defined as the proportionality factor that the number of constituent particles in a sample with the amount of substance.

Avogadro’s number can be described as a dimensionless number that represents the number of entities in one mole of any substance. These elementary entities can be molecules, atoms, ions, electrons, or protons, etc.

Avogadro’s constant has a value approximately equal to 6.022 × 10²³ mol⁻¹.

Given, the number of atoms of copper = 2.34 × 10²³

The atomic mass of Cu Copper = 63.5 g/mol

So 6.022 × 10²³ atoms of Cu have mass = 63.5 g

Then 2.34 × 10²³  Cu atoms will have mass = [tex]\frac{63.5 \times 2.34 \times 10^{23}}{6.02 \times 10^{23}}[/tex] = 24.68 g

Therefore, 24.68 grams of Cu are there in 2.34 × 10²³ atoms of Cu.

Learn more about Avogadro's number, here:

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If you have 2.0 moles of sodium chloride (NaCl), what is its mass in grams?

Answers

Answer:

117g

Explanation:

Given parameters:

Number of moles = 2moles

Unknown:

Mass of NaCl  = ?

Solution:

To solve the problem, we need to use the expression below;

    Mass of NaCl  = number of moles x molar mass

Molar mass of NaCl  = 23 + 35.5  = 58.5g/mol

 

So;

Insert the parameters and solve;

     Mass of NaCl  = 2 x 58.5  = 117g

Which has the larger atomic radius Ga Or B

Answers

Answer:

Ga-135 is the largest atomic radius because B atomic radius is 85

Can't live without me, you wanna, but you can't, no, no, no
Think it's funny, but honey, can't run this show on your own
I can feel my body shake, there's only so much I can take
I'll show you how a real queen behaves, oh

Heres a song. Please Help Me WIth This Work

Answers

Ohh okay it’s nice is it a country song or a pop song or? :)

Which of the following is an example of a decomposition reaction?

Answers

Answer:

B is a decomposition reaction

The chemical equation which represents decomposition reaction is 2 NaCl[tex]\rightarrow[/tex] 2 Na + Cl₂.

What is chemical equation?

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

Learn more about chemical equation,here:

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DRAW A PEDIGREE

Read the following information and ON NOTEBOOK PAPER, construct a pedigree using the symbols we went over Tuesday: Scott is married to Christa. They have 3 children, Blake (a son), Peyton (a daughter), and Ashton (a daughter). Blake is married to Allie and they have 2 children, Henry (a son) and Harper (a daughter).

When you have completed your pedigree drawing, take a picture and attach it to this assignment and submit.

Answers

Answer:

Here you go

Explanation:

ASAP, NO TROLLS 20 points!!!!

Answers

Answer:

1.- Chemical change

2.- Because the atoms in the image are tranformed into a new molecule

3.- Yes, it does

4.- Due to the amount of atoms are the same both in products and reagents

Explanation:

Answer:

1.- Chemical change

2.- Yes it does ,because the atoms in the image are transformed into a new molecule

3.- Yes, it does because energy is not being created or destroyed

4.- Due to the amount of atoms are the same both in products and reagents

Which model best represents a pattern?
Antenne UHF
Chaum
RTG
Master
Antenne
grand gain
DAN
REMS
RAD
SAM
Chemin

Answers

Is it grand gain? Sorry, i’m not too good at this.

Which element in Period 3 has the largest atomic radius?

Answers

Answer:

sodium

Explanation:

This particle has mass but no charge.

Answers

Answer:

Neutrons

Explanation:

let me know if it is right or not:)

neutron : a subatomic particle found in the nucleus of an atom. It has no charge (is neutral), and has a mass of 1 amu.

Consider the compound Al(OH)3. What type of solid does it form?

Answers

Answer: crystal lattice

Explanation:

Answer:

A and the next question is c

Explanation:

Edge 2020

What Group would this element be in?

Answers

Answer:

Non-metals because it has 9 electrons meaning it is fluorine

Explanation:

20 POINTS!!
Kinetic and Potential Energy

Answers

A ball sitting on the peak of a mountain (potential) then the ball rolling down (kinetic)

Answer:

When a ball is rolled up a hill, it has potential energy that can turned into kinetic energy. The kinetic energy would be the ball rolling down the hill.

Explanation:

Hope this helps!

A radio station transmits to a receiving antenna. The radio wave sent is a

a.
surface wave
b.
torsional wave
c.
longitudinal wave
d.
transverse wave

Answers

longitudinal

all sound waves are longitudinal

the answer is c , i took this while back

why is a rise in sea level significant?

Answers

Answer:

I honestly dont know but its cool problably from water fill or from the waves going to much

Explanation:

the answer I can think of is it might be the way the water has waves and it moves a lot
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