How many valence electrons does lithium (Li) have available for bonding? 1 2 3 4

Answers

Answer 1
Answer: The number of valence electrons that Lithium has for chemical bonding would be 1. According to the electron configuration of lithium, 1s^2 2s^1. This single valence electron is found in the 2s orbital of the 2nd energy level.
Answer 2
Answer:

Answer:

The answer is A. 1

Explanation:


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Assume that each tablet's mass was 1,000 mg, and remember that you used 0.200 L of water each time. Compute the reaction rate to the nearest whole number using the formula below.
if you have 0.5 grams of CaCl2 dissolved to make 15mL of solution, what is the molarity of the solution?

Question 9 (2 points)Calcium oxalate is an active ingredient in witch hazel. How many moles of CaC204 are in 50.0 g?
Оа
Ob
Ос
0.39 moles
6405.00 moles
128.10 g
2.56 moles
Review Answers

Answers

Answer:

0.39 moles

Explanation:

To find how many moles are in 50.0 g of CaC₂O₄ you divide the grams of the sample by the molar mass of the compound;

(50.0 g)/(128.097 g/mol)=0.39 mol

The grams cancel out and you are left with moles!

I hope this help ^-^

pretty sure it’s 0.39 moles

How many atoms are in 2C3H5Oh+7O2​

Answers

Answer: o.62+10 atoms

Explanation: equals 1

Fill in the blanks with the words in the following list. apron
doing
MSDS
drink
eat
mix
goggles
safety shower
water
acids

Rule number one in laboratory safety is know what you are
doing
.

The best protections from chemical splashes and spills are an ________
to cover your body and _________
for your eyes.

Never
eat
food or
drink
liquids from a lab container, even if it has been thoroughly washed.
Rinse skin thoroughly with
water
after a chemical splash.

A _________
should be used for more significant spills.


Pour
acids
into water, never the other way around.
Do not
mix
chemicals unless you know what the product of the reaction will be.


A _________
describes important safety and reactivity information about a chemical.


Fill in the blanks please

Answers

aprons are used to cover your body (most people use la coats though) and goggles are used to cover your eyes.

Safety shower should be used for more significant spills.  

An MSDS (Material Safety Data Sheet) describes important safety and reactivity information about a chemical.

I hope this helps.  Let me know in the comments if anything is unclear.

Describe the differences in the atomic structures of a hydrogen atom and a helium atom.I need a paragraph for my homework, would help a lot! thanks : )

Answers

A hydrogen atom has one proton and one electron. The helium atom has 2 protons, 2 electrons and 2 neutrons.

If we use water everyday why do we not run out of freshwater?

Answers

Answer:

We do not run out of water because of the water cycle

Explanation: The water cycle, also known as the hydrologic cycle or the hydrological cycle, describes the continuous movement of water on, above and below the surface of the Earth. The mass of water on Earth remains fairly constant over time but the partitioning of the water into the major reservoirs of ice, fresh water, saline water and atmospheric water is variable depending on a wide range of climatic variables.

If you don't already know this go hang out with dunce face aka denki kaminari

you both most likely share the same brain cell as both him and Kirishima

What must happen before a cell can divide?

Answers

the cell must go through mitosis and chromosomes in the nucleus must double
Mitosis.....................