Plzzz help me answer this question!!,!

Answer:

can someone please do this and put the answers below !!!!

Explanation:

Answer:

#2, 4, & 5

Explanation:

In number 1 there are unequal Cu's

In number 3 there are unequal Cl's

Answer:

B,D,E

Explanation:

Answer:

option c

Explanation:

neutros equal to mass num - atomic num

An atom can be defined by its properties:

An isotope is represented by the general notation of [tex]_Z^A\textrm{Y}[/tex], where X is the symbol of an element.

Mass number = Numer of protons + Number of neutrons

Put the value in the above formula.

[tex]\Rightarrow \text{Mass number}=3+5[/tex]

[tex]\Rightarrow \text{Mass number}=8[/tex]

The isotopic representation of the chemical specie is [tex]_3^8\textrm{Li}[/tex]. So, the correct option is C.

Learn more about isotopic representation: https://brainly.com/question/18210355

Answer:

at first click done,

A: exponential

then, i just put 0.5, and somewhat close.

Explanation:

edge 2021!!!

Explanation:

They are indeed placed from the far left hand side of the periodic table in almost the same column. If you step around the table between left to right, the movement of electrons rises by one. When you progress down the line, the number of power increases by the one.

Answer: I think G.

Explanation:

Answer:

I believe its student 2 as well. it's most definitely g

Answer:

An element is made of one type of  atom, while a compound is two or

more types of atoms combined.

Explanation:

An element is a distinct substance that cannot be split up into simpler substances. Elements are substances that consists of only one kind of atom.

Compounds are substances composed of two or more kinds of atoms/elements joined together in a definite grouping.

As we can see, compounds are indeed made up of more than one types of atoms whereas an element is made up of just one single atom.

Answer: cause oxegeon is harmful then helium

Explanation:

Answer: C.

Explanation:

This is called entropy I believe. (it wouldn't let me answer before)

Answer:

C. 64

Explanation:

Given:

The number of equally likely sample outcomes of a single stage = 4

Unknown:

Total number of elements if there are three stages= ?

Solution;

Probability is the likelihood of an event to occur.

  In this problem;

      For a single stage, the likely outcome is 4

So therefore;

   For the 3 stages 4 x 4 x 4 = 64

Therefore, the total number of elements in the sample space of an experiment with 3 stages is 64

Answer:

The atomic number stands for the number of protons in an atom of the element.

The number of protons determines the identity of the element,

So the atomic number identifies the element. GOOD LESSONS ♡

Answer: below -45

Explanation:

Answer:

i dont feel like typin the whole definition so im jus gonna type the number with the word

1- temperature

2- laws of conservation of energy

3- boiling point

4- freezing point

5- joule

6- thermal energy

7- heat

8- solid

9- liquid

10- gas

Answer:

hey guys

Explanation:

hope this helps you to do something good

Answer:

ionic bonds also called electrovalent bonds areee bonds that exist two metals.It is an electrostatic attraction between positive and negative ions in a Crystal lattice.

Explanation:

examples of elements with this bond are

hydrogen chloride

copper oxide

potassium bromate

Answer:

C.

Explanation:

The movement of the bow is Kinetic Energy.

Answer: C. Kinetic energy to sound energy

Explanation: The vibration of the string is kinetic energy that transforms into sound energy.

Answer:

Explanation:

In astronomy, the interstellar medium (ISM) is the matter and radiation that exists in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, as well as dust and cosmic rays.

I tried, I hope it helps :)

Answer:

A

Explanation:

Answer:

Al2O3 + 3Cl2 + 3 C → 2 AlCl3 + 3 CO

Explanation:

Answer:

The wheel size does not affect the speed of the skateboard.

Explanation:

This is true because Nikki's average time goes up while Lisa's goes down, so it depends on how hard they are pushing the skateboard with their foot.

Answer:

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

[tex]P_1V_1 = P_2V_2[/tex]

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we are finding the new pressure we have

[tex]P_2 = \frac{P_1V_1}{V_2} \\[/tex]

We have

[tex]P_2 = \frac{50 \times 2}{200} = \frac{100}{200} = \frac{1}{2} \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

Bromine (BR2)

Explanation:

Cl2 + Br2 = ClBr

Answer:

Holmium

Explanation:

Electronic configuration:

             [Xe] 6s² 4f⁵ 5d⁶

To know this element, we must first find the atomic number and then look for its position on the periodic table.

     Number of electrons in [Xe] = 54;

  So the total number of electrons  = 54 + 2 + 5 + 6 = 67

This element has an atomic number of 57. On the periodic table, it is Holmium

Hello user, you did not add a picture of an attachment to enable me help you solve this problem. Please check the attachment I added i believe it is the question that needs to be solved.

Explanation:

1. In the first column

INCREASE CONCENTRATION: these are the items that needs to be placed in this bin

a. Add drink mix solid to a diluted mixture of drink mix in pure water

b. Add drink mix solution to a diluted mixture of drink mix in pure water

c. Add drink mix solid to pure drink mix solution

d Evaporate water from a diluted mixture of drink mix in pure water

e Evaporate water from pure drink mix solution

2. The items below are what should be placed in this bin,DECREASE CONCENTRATION:

a. Add water to a diluted mixture of drink mix in pure water

b. Add water to pure drink mix solution

3. These items here should be placed here. DOES NOT AFFECT CONCENTRATION:

a. Add pure drink mix solution to pure drink mix solution

b. Drain the pure drink mix solution

c. Drain the diluted mixture

Answer:

Matter is classified into two broad categories, namely, pure substances and mixtures. Mixtures can be separated into pure substances by physical methods. Pure substances are further divided into categories as elements and compounds. ... A pure substance can be either an element or a compound.

Explanation:

Answer:

its 45 because of 49 og the