Answers
Answer:
+4
Explanation:
An atom is considered to be neutral before losing or gaining any electrons. They are neutral in charge because they initially have the same number of protons (with charge of +1 each) and electrons (with a charge of -1 each).
Consider charge in an electron like a balance, with positively charged protons on one side and negatively charged electrons on the other. When you have the same number of each, there is equal amounts of positive and negative charge so the atom is neutral with a charge of zero.
For example, potassium has 19 protons, and 19 electrons. This means it has
19 positive charges and 19 negative charges. If you take away one electron, it now has 19 positive charges and 18 negative charges. So there is one more positive charge than negative, which means it is now an ion (a charged atom) with a charge of +1. If you take away two electrons the charge becomes +2... 4 electrons the charge becomes +4.
Related Questions
Calculate the molarity of a solution prepared by dissolving 3.80 grams of AgNO3 in enough water to make 3.50 liters of solution. (If possible show process)
Answers
Answer:
By the end of this section, you will be able to:
Describe the fundamental properties of solutions
Calculate solution concentrations using molarity
Perform dilution calculations using the dilution equation
Fe2O3 the valance number
Answers
Answer:
3
Explanation:
Answer:
Valence of Fe-3
Valence of O-2
11. How many elements do all the "P" orbital span (go across) in each period? (circle your answer)
a) 2
b) 6
c) 10
d) 14
Answers
Answer: B
can u pls give me brain list?
which is the SI unit used to measure the temperature of a substance
Answers
Answer:
Kelvin
Explanation:
Answer:
Kelvin
Explanation:
How many Proton, Neutrons, and
Electron does 35^Cl have?
Answers
Answer:
17 electrons, 17 protons and 18 neutrons
Explanation:
35-Chlorine has 17 Protons, and 18 Neutrons in its Nucleus.
Which of the following conditions must be met for a volume ratio to be created from a balanced chemical equation? (3 pm
O Changing temperature and pressure
Constant temperature and pressure
Changing temperature and constant pressure
Constant temperature and changing pressure
Answers
Answer:
The answer will be Constant temperature and pressure
Explanation:
Just took the test and it was correct 100%!!!
Answer:
Constant temperature and pressure
Explanation:
took the test
what properties of aluminum make it particularly useful in drinking cars
Answers
Answer:
in doesn't rust which sends meatel into the drink
Explanation:
u are welcome
Which of the following is NOT an example of a change of state? *
HELP PLSSSSSS
Plants using photosynthesis to produce food.
Liquid water in perspiration changes to a gas when it evaporates.
An ice cream cone melts, forming a liquid.
Answers
Answer:
Plants using photosynthesis to produce food.
Answer:
the icecream one is not an example
How many atoms for each element in this compound:
Pb3(PO4)2
Pb =
P=
O=
Answers
Answer:
In the compound Pb3(PO4)2, there are 3 Pb atoms, 2 P atoms, and 8 O atoms.
Let me know if this helps!
There are 3 atoms of pb(Lead), 2 atoms of P(Phosphorus) and 8 atoms of O(Oxygen) are present in Pb3(PO4)2.
What is an atoms?An atom is the smallest constituents of matter that can neither be created nor be destroyed.An atom It consists of a central nucleus, usually surrounded by electrons. Each electron is negatively charged. The nucleus is positively charged, and contains relatively heavy particles known as protons and neutrons.What are Compounds?
A compound is a combination of atoms of same or different types of an element in a fixed ratio.
In the given question Pb3(PO4)2 is a compound of lead phosphate which is made up of 3 atoms of pb(Lead), 2 atoms of P(Phosphorus) and 8 atoms of O(Oxygen).
Learn more about atoms here: http://brainly.com/question/6258301
#SPJ2
Which of the following has the highest in chemical energy (energy stored in chemical bonds)?
Question 2 options:
ADP
ATP
ASP
APP
Answers
Answer:
ADP
Explanation:
Approximately what is the minimum temperature needed to dissolve 10 g of KNO3 in 100 g H2O?
Round your answer to the nearest whole number and type in the number only; no units.
Answers
Answer:(a) Potassium nitrate will begin to crystallise at about 56 °C, when its solubility is 100 g/100g water.
Explanation:
А
What is the chemical symbol for Hydrogen?
A.OCH
B.оне
C.Н
D.он20
Answers
Answer:
the answer to this is ( H )
how much faster will ammonia vapor travel across a room then carbon dioxide
a. 0.622
b. 1.39
c. 7.55
d. 1.61
Answers
Answer:
D) 1.61 times faster
Explanation:
[tex]vrms_{NH3}[/tex] = √(3)RTM
R constant= 0.08206
T=constant, so in this problem we dont need a value for it
M=17.031 g/mol
√(3)(0.08206)(17.031)= 2.047
[tex]vrms_{CO2}[/tex] = √(3)RTM
R constant= 0.08206
T=constant, so in this problem we dont need a value for it
M= 44.01 g/mol
√(3)(0.08206)(44.01)= 3.29
Since we are trying to measure how much faster NH3 will be, we have to realize that mass and speed have an inverse relationship.
So instead of doing (2.047)/(3.29) = 6.22
we have to flip the values to get (3.29)/(2.047)= 1.61
A large piece of iron was reacted with an acid. What would happen to the rate of the reaction had the large piece been finely divided into smaller pieces? (1 point)
It will decrease because the reactant particles are moved farther apart.
It will increase because the reactant particles are brought closer together.
It will decrease because larger particles provide more surface area to react.
It will increase because smaller particles provide more surface area to react.
Answers
Answer:
D: It will increase because smaller particles provide more surface area to react.
Explanation:
When the large iron is broken up into smaller pieces, there are more places for the iron to react (meaning there's more surface area). Think of it like taking the surface area of a big cube compared to the surface area of a bunch of small cubes. The sum of the surface areas of the small cubes will be greater than that of the large cube. As a result, more places for the iron to react will cause for a greater reaction.
Answer: D It will increase because smaller particles provide more surface area to react.
Which is a TRUE statement about
London Dispersion Forces?
ELECTRON moving causes partial
positive & negative charges creating
attraction
PROTON movement causes partial
positive & negative charges creating
attraction
Answers
Answer:
The London dispersion force is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. Dispersion forces are present between any two molecules (even polar molecules) when they are almost touching.
Thus PROTON movement causes partial positive & negative charges creating
attraction will be crrt
How many atoms are in 1.00 moles of glucose
Answers
Answer:
1 molecule of glucose contains 6 atoms
Explanation:
Answer:
there are 6 atoms :)) I think so
what is 54-34+87x56
How is everyone on this beautiful day?
Also if u need to hear that someone loves u i do even if i don't know u
Answers
Answer:
5,992
Explanation:
and thank you! ♥
Write the word and balanced chemical equations for the reaction between:
Sulfuric acid + aluminum hydroxide
Answers
Answer:
Alumminum hydroxide reacts with sulfuric acid as follows: 2Al(OH)3+H2SO4-->Al2(SO4)+6H2O.
Explanation:
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What is the molar mass of CO
Answers
Question:
→What is the molar mass of CO
Answer:
→28.01 g/mol
Question: If red dye is added to cold water and blue dye is added to warm water, which dye will
spread out quicker?
Answers
Answer:
Blue dye spreads out quicker
Explanation:
This is because the dye gets spread out by water molecules. Warm water has faster moving water molecules than cold water.
Which has a lower electronegativity and why? N or P? Use 'force of attraction' in your answer
Answers
Answer:
The electron sets divided among two particles are not really shared similarly. For instance, while the common electron sets are shared similarly in the covalent security in Cl2, in NaCl the 3s electron is taken from the Na iota and is fused into the electronic design of the Cl molecule - and the compound is most precisely portrayed as comprising of individual Na+ and Cl− particles (ionic holding). For most covalent substances, their bond character falls between these two limits. We showed beneath, the bond extremity is a helpful idea for portraying the sharing of electrons between molecules inside a covalent bond:
A nonpolar covalent bond is one in which the electrons are shared similarly between two particles.
A polar covalent bond is one in which one iota has a more noteworthy fascination for the electrons than the other molecule. On the off chance that this overall fascination is sufficiently incredible, the bond is an ionic bond.
Explanation:
What is the mass of 99.0 L of NO2 at STP?
Answers
Mass of NO₂= 203.32 g
Further explanationGiven
99.0 L of NO₂
Required
Mass of NO₂
Solution
Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters / mol.
So mol NO₂ :
= 99 : 22.4
= 4.42
Mass :
= mol x MW
= 4.42 x 46 g/mol
= 203.32 g
CH3CH2C=CH2)
O=O
?
What is the functional group for this compound
Answers
Answer:
ketone
Explanation:
please mark me as brainlist
which of these elements has the smallest atomic radius?
a) F
b) Cl
c) Br
d) i
Answers
Answer:
F has the smallest
Explanation:
The trend is that atomic radius increases as you move down a group
Hello, your answer is down below!
A. F
I hope this helps mark brainlist if im correct!
in the single replacement reaction AB + C → A + CB, the anion in the reactant compound AB is _______
Answers
Answer:
The anion is B.
Explanation:
Compounds are usually written as [cation][anion], and the positive charge of the cation (A) will cancel out the negative charge of the anion (B). We are reaffirmed of our answer by the product CB, which also has B as an anion.
Answer:
B
Explanation:
Increasing the temperature of the water will increase the amount of salt that it can dissolve.
True
False
Answers
answer:
true, increasing the temperature does increase the amount of salt it can dissolve. however that would also be considered oversaturated if there is too much salt.
2. How many grams of methane must be burned to produce 2.05 grams of water in the complete combustion reaction?
The unbalanced equation for the reaction is: _CH418) + _ 0218) ►_CO2(8) +_ H2O(8)
Answers
Answer:
0.88 g
Explanation:
The balanced reaction equation is;
CH4(g) + 2O2(g) ----------> CO2(g) + 2H2O(l)
Number of moles in 2.05g of water = 2.05g/18g/mol = 0.11 moles
If 1 mole of CH4 yields 2 moles of water
x moles of CH4 yields 0.11 moles of water
2x = 0.11
x = 0.11/2
x= 0.055 moles
Molar mass of methane = 16 g/mol
Mass of methane = 16 g/mol * 0.055 moles
Mass of methane =0.88 g
*2Al(OH), + 3H,SO, Al(SO4)2 + 6H2O
reaction type
Answers
YOU DO:
1) What volume of 0.25M lithium fluoride solution can be made by dissolving 5.0 g lithium fluoride, LiF?
Answers
Answer:
0.7712 L
Explanation:
Molarity = 0.25M
Volume = ?
Mass = 5.0 g
The relationship between these quantities is given as;
Molarity = Number of moles / Volume
Volume = Number of moles / Molarity
Number of moles = Mass / Molar mass
Molar mass of LiF = 25.939 g/mol
Number of moles = 5 / 25.939 = 0.1928 mol
Volume = 0.1928 / 0.25 = 0.7712 L
hear me out!! am I the only one who gets headaches on the daily? why do I get them?
Answers
Answer:
Same i have headaches daily, maybe from infections such as meningitis or Intracranial pressure that's either too high or too low or id.k.