Answers
Related Questions
Where are the volcano located
Answers
Answer:
In the ring of fire
Hope this acc helps
What is the chemical formula for Magnesium and Phosphorus as a compound?
1- Mg2 P5
2- Mg2 P3
3- Mg3 P2
4- Mg5 P3
Answers
The answer is Mg3 glad I helped
बा
If OPPOSITE poles (N and S) of
a magnet are placed near
each other, what happens?
Type answer here
Answers
Answer:
They attract each other
Explanation:
A magnet has two poles;
North pole and south pole
When two opposite poles are placed close to each other, they attract each other. The short rule is opposite opes attract.
When two like poles are placed close to each other, they repel each other. The short rule is like poles repel.
I need help with this question
Answers
Answer:
B
Explanation:
it's all about the genetics of the horse
Your car burns gasoline as you drive from home to school
Answers
what is computer hardware in short?
Answers
Answer:
computer hardware is a collection of a physical part of a computer system
examples = CPU , monitor , mouse etc
someone plz help me.
Answers
Answer:
The answer is 2.
Explanation:
It is the only one that has a chemical change.
Hope this helped you :)
If so pls give brainliest.
Which of the following chemical reactions produces water via a
synthesis reaction?
a 2H2 + O2 + 2H2O
b NaOH + HCI - NaCl + H2O
C CuO + H2 - Cu + H2O
d H2CO3 → CO2 + H2O
Answers
Answer:
Should be A, but also I think there should be an arrow between O2 and 2H2O
1)how is ice made?
2)what materials does it use?
3)how is it put together
Answers
Answer:
milk and sugar and vinillia it uses a machine and you stir until it forms
Explanation:
If more reactants are used in a chemical reaction, more products will be
produced. This is because *
1 point
More reactants have more atoms to react to form more products
More reactants take up the same volume
Too many products can slow down the reaction
More reactants cause the reaction to heat up
Answers
More reactants have more atoms to react to form more products.
More reactants have more atoms to react to form more products in a chemical reaction.
What is a Chemical reaction?This is the process which involves two or more molecules known as reactants collide with the right orientation and force to form a new product.
Increase in reactants means presence of more molecules involved in the reaction thereby leading to the formation of more product.
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4 Hydrogen has three naturally occurring isotopes. H.1, H-2, and H-3 The atomie mass of Hydrogen is 1.097 Which isotope is most abundant in nature? Explain
Answers
Answer:
The number following the name of the element is the number of subatomic particles inside the nucleus of the atom. This means that it is the mass number of the isotope. The average atomic mass of the element is the sum of the products of the percentage abundance and mass number of the naturally occurring isotopes.
Since, the average atomic mass of the hydrogen is nearest to 1 then, the most abundant isotope should be hydrogen-1.
I need help I don’t get this
Answers
Answer:
Visit: gotit-pro.com
Explanation:
119 kPa x 1 atm/101 kPa = 1.18 atm
2) Convert temperature to Kelvin
35 + 273 = 308 K
3) Use PV=nRT and solve for V
(1.18 atm)(V)=(0.0972 mol)(0.0821)(308 K)
V = (0.0972 mol)(0.0821)(308 K) / (1.18 atm)
V = 2.08 L
How to convert celcius to Kelvin?
Answers
Answer:
temperature
Explanation:
How many milliliters of 0.25M H2SO4 can be prepared from 57 mL of a 3.0M solution of H2SO4?
Answers
Answer:
Why ? Because 1 molecule of H2SO4 gives 2 H+ ions per molecule while only one H+ ion is required to neutralize 1 molecule of KOH. So, 1 molecule of H2SO4 can neutralize 2 molecules of KOH. Hence, we would require 525 ml of 0.03 M H2SO4 to neutralize 525 ml of 0.06 M KOH. How will we prepare 525 ml of 0.03 M H2SO4 ?
Explanation:
Now, we have 0.025 M H2SO4 and we do not know how much volume we have.
We will use the standard N1 X V1 = N2 X V2 for this calculation.
N1=0.025 M; V1=unknown; N2=0.03 M and V2=525 ml.
So V1= (0.03 X 525)/(0.025) = 630 ml.
According to the molar concentration, 684 ml of 0.25 M H₂SO₄ can be prepared from 57 mL of a 3.0 M solution of H₂SO₄.
What is molar concentration?Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.
The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.
In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.In case of 2 solutions,it is calculated as, M₁V₁=M₂V₂ substitution gives V₁=3×57/0.25=684 ml.
Thus, 684 ml of 0.25 M H₂SO₄ can be prepared from 57 mL of a 3.0 M solution of H₂SO₄.
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How many grams are in 2.50 moles of copper?
Answers
Answer:
There are 63.546 grams in a 2.50 moles of copper.
Which statement about Niels Bohr's atomic model is true?
O Higher orbits have lower energies.
Each orbit has a specific energy level.
Electrons can exist in any energy level.
O Orbits close to the nucleus have no energy.
Hurry.
Answers
Answer:
o
Explanation:
Answer:
Each orbit has a specific energy level.
Explanation:
Bohr model
The inflation of airbags is due to the breakdown of a single chemical substance into two separate substances.
Two molecules of sodium azide (NaN3) break down into sodium (Na) and nitrogen gas (N2) during the reaction.
How many sodium (Na) atoms are produced in the reaction?
1 Na atom
2 Na atoms
3 Na atoms
Answers
Answer:
The correct answer would be
B. 2 Na atoms
Explanation:
As seen in the picture below,
How many moles are there in 105.69 grams of FeCI2
Answers
Answer:
0.8338395752301793
Explanation:
I used an online converter (grams to moles for FeCl2)
Which is an example of a medicine that is made up of synthetic materials?
Fish Oil
Aspirin
Aloe Vera
Fresh water
Answers
Answer: Aspirin
Explanation:
Please help me with dis
Answers
Answer:
c
Explanation:
Why is think chemistry is important? i need 5 paragraph please
Answers
Answer:
because it is so fundamental to our world . chemistry plays a role in everyone lives.
It touches almost every aspect of our existence in some way.
Chemistry is essential for meeting our basic needs of food, cloth, etc.
Chemistry plays a important and useful role towards the development and growth of industries.
chemistry also helps you become who you want to be.
Why the bond in water molecule os polar covalent bond, while than in chlorine molecule is pure covalent bond? Give reason?
Answers
Explanation:
The unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that a water molecule has two poles - a positive charge on the hydrogen pole (side) and a negative charge on the oxygen pole (side). We say that the water molecule is electrically polar.
Think of the of the body that we need in order to do things like walk, run etc. What systems are these? How do they work together so you can do these activities?
Answers
Answer:
I dont get this
Explanation:
What effect does the concentration of reactants have on the rate of a
reaction?
A. Changing the concentration has no effect on the reaction rate.
B. Increasing the concentration decreases the rate of the reaction.
O C. Increasing the concentration increases the rate of the reaction.
O D. The effect of concentration on rate varies within the reaction.
Answers
Answer:
C
Explanation:
The answer is C as concentration is a major factor affecting the rate of reaction and it has a direct relationship with the rate of reaction.
The effect that the concentration of reactants has on the rate of a reaction is increasing the concentration increases the rate of the reaction. The correct option is C.
What is a reactant?A reactant is a part of a reaction that is the first part of the reaction. Reactant can be more than one in the reaction. The different reactant reacts, and form a totally different product.
H2 + O2 = H2O
The hydrogen and oxygen are the reactants of the reaction.
Thus, the correct option is C. Increasing the concentration increases the rate of the reaction, as concentration plays a significant role in determining the rate of reaction and is directly related to it.
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The term "para" in Paralympics means?
Answers
Answer:
It means beside or alongside.
Answer:
The word Paralympics means “parallel with the Olympics”, with the para prefix coming from the Greek word for alongside. The name was chosen to embody the spirit of the two movements existing side-by-side.
Explanation:
How did chemists make their proposed model of the sub atomic particles?
Answers
Answer:
Because they want to clarify or give solution to the particle that the other didn't know
Explanation:
Correct me if im wrong thanks
Please help me, I am confused
Answers
Answer:
B
Explanation:
Ionic compound can conduct electricity
1. In_____particles are in contact with each other.
Answers
Answer:
condensed matter should be your answer
Explanation:
Example 1 How much water (in grams) is produced when 65.2 grams of Calcium carbonate react with phosphoric acid to form calcium phosphate, water, and carbon dioxide?
Answers
Answer:
11.75 g H2O
Explanation:
3CaCO3 + 2H3PO4 --> Ca3(PO4)2 + 3H2O + 3CO2
MM H2O = 18.02 g/mol
MM CaCO3 = 100 g/mol
? g H2O = mass CaCO3 x (1 mol CaCO3/MM CaCO3) x (3 moles H2O/3 moles CaCO3) x (MM H2O / 1 mol H2O) = (65.2/100) x 18.02 = 11.75 g H2O
If combining cation A with a +3 charge and anion X with a -3 charge, how would we write the compound?
O AX
O A3X3
O 3AX
Answers
Answer: it’s not A3X3
Explanation:
1. AX
For binary ionic compounds (ionic compounds that contain only two types of elements), the compounds are named by writing the name of the cation first followed by the name of the anion.If a cation A carries +3 charge and an anion X carries -3 charge, the compound so formed is AX. Since the charges gets cancelled out.For example: consider aluminum phosphate, aluminum carries +3 charge and phosphate carries -3 charge, the molecular formula for the compound will be AlPO₄.Learn more:
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