I need help I know it isnt A

I Need Help I Know It Isnt A

Answers

Answer 1
It is B. Thank you later please and do good on the test!
Answer 2
The answer is D. You have the right answer highlighted!

Related Questions

The mass of a block is 2.5 g the volume of the block is 4.1 mL.  what is the density of the block

Answers

Answer:

6.6g

Explanation:

Please help! I’ll mark brainliest for best answer!

Answers

Answer:

The Atomic Number

Explanation:

The X would be the Atomic Number or amount of protons sorrounding the nucleus of that atom.

Select The on that most applys


Will mark brainliest

Answers

Answer:

A and b

Explanation:

A is the answer hope this helped !

Tendency of an object to float

Answers

Answer:

Buoyancy is the ability or tendency of an object to float in a fluid: a liquid or a gas. This happens because fluid pressure increases with depth. According to Archimedes' Principle, the buoyant force on a submerged object is equal to the weight of the liquid displaced by the object.

Explanation:

what happens to the electronegatity when you go from top to bottom on the periodic table?

Answers

Answer:

It decreases

Explanation:

As you go down a group from top to bottom, the electronegativity decreases. Across a period, electronegativity increases from left to right.

Electronegativity is the tendency with which the atoms of the element attracts valence electrons in a chemical bond. The more electronegative an element is, the stronger its affinity for electrons. Electronegativity values less than 2 shows an element is a metal. Metals are generally electropositive.

Suppose that green spheres represent chlorine atoms, yellow-green spheres represent fluorine atoms, white spheres represent hydrogen atoms, and all the molecules are gases

Answers

Answer:

a. Reactants: F₂ and HCl molecules

Products: Cl₂ and HF

b. 4HCl + 2F₂ ----> 4HF + 2Cl₂

c. Single replacement reaction

Note: The question is not complete. The complete question is found below as well as in the attachment.

Suppose that green spheres represent chlorine atoms, yellow-green spheres represent fluorine atoms, white spheres represent hydrogen atoms, and all the molecules are gases:

a. write a formula for each of the reactants

b. write a balanced equation for the reaction

c. indicate the type of reaction as combination,decomposition, single replacement, double replacement, or combustion

Explanation:

a. From the models shown in the diagram, The reactants are F₂, HCl while the products are Cl₂ and HF respectively

b. Equation for the reaction is given below;

4HCl + 2F₂ ----> 4HF + 2Cl₂

c. The reaction is single replacement reaction such that fluorine gas molecules replace the chlorine atoms in hydrogen chloride to form hydrogen fluoride with the liberation of chlorine atoms as gaseous molecules.

How many total atoms are in K2(H2AsO4)2
5
18
16
12

Answers

Answer:

18

Explanation:

go go evhdj kk nm go go go

Question 6 (1 point)
Sound, earthquakes, and waves in water are rechanical waves because they require
a physical to transport energy. (Lesson 4.02)
O electromagnetic field
O disturbance
O medium
location

Answers

Answer: The answer is MEDUIM

Explanation:

What is the difference between a hyrdrogen atom and a hydrogen molecule?

Answers

Answer:smaller

Explanation:

Answer:

Explanation:

A hydrogen atom (H) is bonded to form hydrogen gas(H2)(a molecule)

Why would farmers in the United States be especially concerned about a decrease in ground water?

Answers

Bc they farm plants in da ground and if de ground wootar is go bye bye de planties noot get wootar and de cant cry or dey will waste deyre wootar :,[

Answer:

yes probably

Explanation:

the decrease would affect the plants growing in the ground cause there is no access water they can get

Determine the mass of 2.86 mole Co(NH3)6Cl3

Answers

Answer:

765 g Co(NH₃)₆Cl₃

General Formulas and Concepts:

Reading the Periodic Table of Elements

Explanation:

Step 1: Define

2.86 mol Co(NH₃)₆Cl₃

Step 2: Define conversions

Molar Mass of Co - 58.93 g/mol

Molar Mass of N - 14.01 g/mol

Molar Mass of H - 1.01 g/mol

Molar Mass of Cl - 35.45 g/mol

Molar Mass of Co(NH₃)₆Cl₃ - 58.93 + 6(14.01) + 18(1.01) + 3(35.45) = 267.52 g/mol

Step 3: Dimensional Analysis

[tex]2.86 \ mol \ Co(NH_3)_6Cl_3(\frac{267.52 \ g \ Co(NH_3)_6Cl_3}{1 \ mol \ Co(NH_3)_6Cl_3} )[/tex] = 765.107 g Co(NH₃)₆Cl₃

mol Co(NH₃)₆Cl₃ and mol Co(NH₃)₆Cl₃ cancel outWe are left with grams (mass)

Step 4: Simplify

We are given 3 sig figs. Follow sig fig rules.

765.107 g Co(NH₃)₆Cl₃ ≈ 765 g Co(NH₃)₆Cl₃

what is the formula for dihydrogen tetraoxide

Answers

It's been a while... but I'm pretty sure it's

H₂O₄

what are green boxes on periodic tables

Answers

Answer:

The basic metal ones?

Explanation:

...

This is a science question. What is the skateboarder’s acceleration?

Answers

Answer:

2.4

Explanation:

Divide 7.0 by 3.0 you get 2.333333 then round it of to 2.34

Isopentyl acetate is the molecule largely responsible for the aroma and taste of bananas. It is made up of carbon, hydrogen, and oxygen. Combustion of a 3.256-g sample of isopentyl acetate produces 7.706 g CO2 and 3.156 g H2O. Using these results, what is the correct empirical formula for isopentyl acetate?

Answers

Answer:

Explanation:

7.706 g of CO₂ will contain 12 x 7.706 / 44 g of C

= 2.1 g of C .

This will be contained in 3.256 g of isopentyl acetate

3.156 g of H₂O will contain 2 x 3.156 / 18 g of H

= .351 g of H

This will be contained in 3.256 g of isopentyl acetate

Rest will be oxygen

amount of oxygen in 3.256 g of isopentyl acetate

= 3.256 - ( 2.1 + .351 )

= .805 g

ratio of C , H , O in isopentyl acetate

= 2.1 g : .351 g : .805 g

2.1 / 12 : .351 / 1 : 0.805 / 16 ratio of moles

= .175 : .351 : .05  ratio of moles

= 3.5 : 7.02: 1

= 7 : 14 : 2

empirical formula of  isopentyl acetate

= C₇ H₁₄ O₂ .

Could cellular respiration
happen without photosynthesis? Explain your
reasoning

Answers

Answer:

No

Explanation:

Without photosynthesis, there would be no sugar, without which there could be no cellular respiration.Both animal cells and plant cells depend on cellular respiration for their energy needs, because both animal cells and plant cells need ATP.

I need help (yes again)

Answers

Answer:

with what?

Explanation:

8.
Blank is the transfer of energy by electromagnetic waves.
Your answer

Answers

electromagnetic radiation.




Which of the following is not a controllable risk factor?
a. smoking
b. inactivity
c. aging
d. over eating

Answers

Answer:

C) Aging

Explanation:

You can't stop that or change the rate that you age at. its inevetable :D

What happens to the dry ice after sometime? ​

Answers

Answer:

As a rough rule, five pounds of dry ice will turn from a solid to a gas in 24 hours. It's best to pick up the block of ice just a few hours before your party so it's as frozen as possible when the bash starts.

Explanation:

10. A(n) eclipse occurs at a full moon when Earth is directly between the moon and the sun.​

Answers

Answer:

Yes indeed

Explanation:

True or False Gases do have a definite shape and volume. ​

Answers

Answer:

false

Explanation:

Answer:

False

Explanation:

It is false as the particles of gases keep moving. They have very weak molecular bonds. They are so weak that they can move freely anywhere and in any direction. Even if you trap some gases and a closed bottle, they keep moving. We can't measure what the shape is or what the volume is. Therefore, it is false.

Hope this is helpful and mark it Brainliest if possible! Good Luck!!!

please help ASAPPP
will mark brainliest!!!

Answers

Greetings!______________________________________Answer:[tex]OH^{-1}[/tex]WHY IS OPTION A NOT POLYATOMIC?

The polyatomic ions are those ions which has more than two atoms involved such as the other options than OH^-1 in the question. The OH^-1 ion is the diatomic ion because it has only 2 atoms

______________________________________HOPE IT HELPS!

Explain how Earth is heated through radiation

Answers

Answer:

Radiation happens when heat moves as energy waves, called infrared waves, directly from its source to something else. This is how the heat from the Sun gets to Earth. In fact, all hot things radiate heat to cooler things. When the heat waves hits the cooler thing, they make the molecules of the cooler object speed up.

If you wanted to change the polarity of hydrogen bromide (HBr) by substituting the bromine by a different atom. Which atom would increase the polarity of the molecule?

Answers

Answer:

Chlorine

Explanation:

The Polarity of an atom is characterized as the dipole to dipole intermolecular forces between the slightly positively-charged end of one molecule to the negative end of another or the same molecule. Thus, the 'chlorine' atom would help in enhancing the polarity of hydrogen bromide(HBr) with 3.16 electronegativity as we know, the electronegativity increases if we move upwards in the periodic table.

Which family of elements has six electrons in d-type orbitals?

Answers

Answer: Selenium is a member of the sulfur family with elements including tellurium and polonium. This family has six electrons in the outermost shell. Selenium specifically has an electron configuration of 2-8-18-6. The six electrons in the outermost shell allow selenium to have a variety of valence numbers.

Explanation:

I have the coldest temperature of the atmosphere. Who am I?

Answers

Answer:

Jack Frost of course!!!!!!!

The tendency of an atom to attract electrons to itself is ionization energy. effective nuclear charge. electron affinity. electronegativity.

Answers

Answer:

electronegativity

Explanation:

Answer:

THe tendoncy is electronegstivity

Explanation:

Im a big brain person

The density of water is 1.00 g/mL. Which substance below can float on water?

Answers

Answer:

ice, air, ducks and fabric

Explanation:

its common sense

Now look closely at the patterns in the table. Compare the elements in each column and
row. What can we say about elements in the same group and elements in the same period
of the periodic table?
Select all the correct answers.
- The number of electrons in the second energy level increases by one down each
column.
Elements in the same row have the same number of ocupied energy levels.
For each column, the last occupied energy level has the same number of electrons.
The number of electrons in the first energy level increases by one from Li to Ne.

Answers

Answer:

A the first 1

Explanation:

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