Answer:
its atomic weight
Explanation:
How many atoms are in 2.00 x 10^-7 moles of Helium
Answer:
1.20 10^17
Explanation:
convert to atoms using Avogadro's number
2.00 x 10^-7 moles * 6.022 X 10^23 atoms= 1.20 10^17
What is the mass of 5.26 mol Fe2(SO4)3?
Answer in units of g.
2100 g Fe₂(SO₄)₃
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Stoichiometry
Using Dimensional AnalysisAtomic Structure
Reading a Periodic TableExplanation:Step 1: Define
5.26 mol Fe₂(SO₄)₃
Step 2: Identify Conversions
Molar Mass of Fe - 55.85 g/mol
Molar Mass of S - 32.07 g/mol
Molar Mass of O - 16.00 g/mol
Molar Mass of Fe₂(SO₄)₃ - 2(55.85) + 3(32.07) + 12(16.00) = 399.91 g/mol
Step 3: Convert
Set up: [tex]\displaystyle 5.26 \ mol \ Fe_2(SO_4)_3(\frac{399.91 \ g \ Fe_2(SO_4)_3}{1 \ mol \ Fe_2(SO_4)_3})[/tex]Multiply/Divide: [tex]\displaystyle 2103.53 \ g \ Fe_2(SO_4)_3[/tex]Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
2103.53 g Fe₂(SO₄)₃ ≈ 2100 g Fe₂(SO₄)₃
Which reason best explains why plasmas are good conductors of electricity? They have mobile charged particles. They are at extremely high temperatures. They are made up of particles in fixed positions. They have slow-moving nuclei that carry electricity.
Answer:
They have mobile charged particles.
Explanation:
Plasma refers to very hot matter such that the electrons in matter are ripped away from the atoms leading to the formation of an ionized gas.
We know that the carriers of electricity are charged particles. Any state of matter that has an abundance of charge carriers will definitely be a good conductor of electricity.
Therefore, plasmas are good conductors of electricity because they have a lot of mobile charged particles.
Which of the following is a compound?
Group of answer choices
Nitrogen
Oxygen
Hydrogen
Carbon Dioxide
Answer:
carbon dioxide
it is made up of carbon and oxygen.
There is no _____ movement in a strike-slip fault, meaning there are no mountain ranges.
Answer:
isostatic adjustment movement
please answer Seed plants are divided into two groups. What are they? GIVING BRIANLIEST TO WHOEVER IS RIGHT.
vascular and nonvascular
brown seeds and green seeds
nonflowering and flowering
fruits and vegetables
Answer: nonflowering and flowering
Explanation: i just did the quiz
Seed plants are divided into two groups, are nonflowering and flowering plants. Therefore, option C is correct.
What is flowering plant ?Flowering plants create blooms, which they then use as seeds to develop more of their kind or other plants. Nonflowering plants don't produce flowers; instead, they produce microscopic reproductive components called seeds or spores that can be used to create additional plants that look exactly like them.
Gymnosperms and angiosperms are frequently used as arbitrary divisions for the seed plants. The difference between the two is based on the fact that angiosperms produce blooms, whereas gymnosperms do not.
An ovary surrounds the angiosperm seed. A seed grows on the size of a cone in gymnosperms. Inside an ovary, only an angiosperm seed can grow.
Thus, option C is correct.
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I need to turn this in a 3:00 sharp
Answer:
i think their is amswer key for that
Explanation:
How many moles of glucose does 1.2 x 10^24 molecules represent
2.0 mol C₆H₁₂O₆
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Stoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
1.2 × 10²⁴ molecules C₆H₁₂O₆ (glucose)
Step 2: Identify Conversions
Avogadro's Number
Step 3: Convert
Set up: [tex]\displaystyle 1.2 \cdot 10^{24} \ molecules \ C_6H_{12}O_6(\frac{1 \ mol \ C_6H_{12}O_6}{6.022 \cdot 10^{23} \ molecules \ C_6H_{12}O_6})[/tex]Divide: [tex]\displaystyle 1.99269 \ mol \ C_6H_{12}O_6[/tex]Step 4: Check
Follow sig fig rules and round. We are given 2 sig figs.
1.99269 mol C₆H₁₂O₆ ≈ 2.0 mol C₆H₁₂O₆
Ca2+ is an example of
a. cation
b.anion
c.ionic bond
d. ionic compound
HELLPPPPP! The students were making zinc, Zn by reacting copper, Cu, with zinc nitrate, Zn(NO3)2. They were expecting to produce 5.63 g of copper but they recovered only 5.1 g copper. Calculate the percent yield
Answer:
[tex]5.1 \div 5.63[/tex]
What type of reaction is Ni + MgSo4
Which of the following properties is responsible for the movement of tectonic
plates?
Temperature of oceanic crust
Thickness of Earth's layers
Density of continental crust
Convection currents in the asthenosphere
Need help!!!
Will give brainliest for answer
Give oxidation and reduction half-reactions to the equation provided
Explanation:
here u go kid , welcome kid :)
3 points
44. Name one similarity and one difference between compounds and
homogeneous mixtures.
Your answer
Hey there!
Elements and compounds are purely homogeneous substances and they have a constant composition throughout. Elements and compounds cannot be separated into their respective constituents by physical means. Compounds and mixtures are made up of different elements or different atoms.
Need help ASAP. Gave only 10 min
Answer:
Explanation:
If it interests you, you could check out Maxwell's demon. If he is not in operation (and he likely isn't), then the answer is D.
Heat always transfers from hot to cold -- at least at beginning levels of chemistry.
1. By means of orbital diagrams, write down the
electronic configurations of these elements.
(a) Sodium
(e) Magnesium
(b) Aluminium (f) Silicon
(c) Phosphorus (g) Sulphur
(d) Chlorine
(h) Argon
Answer:
a) 1s22s22p63s1
b) 3s² 3p¹
c) 1s22s22p63s23p3
d) 3s² 3p⁵
e) 3s2
f) 1s22s22p63s23p2
g) 1s22s22p63s23p4
h) 3s² 3p⁶
What is the difference between reactants and products?
Answer:
The reactants are the substances that start the chemical reaction. The products are the substances that are produced in the chemical reaction.
Explanation:
What is the difference between reactants and products?
Answer:Reactants It is a substance that is present at the start of a chemical reaction.The substance(s) to the left of the arrow in a chemical equation. Products It is a substance that is present at the end of a chemical reaction.The substance(s) to the right of the arrow. #CARRYONLEARNING #STUDYWELLplease help due soon!
Answer:
W X Z Y. It is the strongest to the least
Which atom has the largest atomic radius? *
K
Fr
Cs
Rb
How many atoms of oxygen are in a molecule of glucose (C6H12O6)?
Record your answer. Be sure to use the correct place value.
Answer:
There are 6 oxygen atoms.
Explanation:
Glucose has a chemical formula of: C6H12O6 That means glucose is made of 6 carbon atoms, 12 hydrogen atoms and 6 oxygen atoms.
hope this helps
The molecular formula of glucose is C₆H₁₂O₆, therefore one molecule of glucose has six oxygen atoms.
What is the chemical formula?A chemical formula is a way of representing information about the chemical proportions of atoms of each element that are present in a molecule or chemical compound. The chemical formula can be written by using chemical symbols, numbers, and other symbols, such as commas, dashes, brackets, and plus (+) and minus (−) signs.
A chemical formula of a compound contains no words but can represent certain simple chemical structures. Chemical formulae are usually more limited in power than structural formulae and chemical names. There are two types of chemical formulas one empirical formula and another molecular formula.
In a molecular formula, more than one atom of the same element can be represented by subscripts. The given formula of glucose is C₆H₁₂O₆ and the total number of oxygen atoms in the formula is equal to six.
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If you could zoom enough to see atoms how would u find out if it is a compound element or a
mixture
I need help with this
Answer: B
Explanation: All you have to do to find out if an equation is balanced is count the number of atoms on each side. To be balanced, they must be equal.
In case you didn’t know: The number in front of an element or compound means that you will multiply. For instance, 2AlBr3 would have 2 Al atoms and 6 Br atoms. The subscript number just means how many atoms there are in that compound.
PLSS ANSWERRRR
Earthquakes are relatively common throughout the west coast, especially in California. The map of California seen here gives you an idea why. Explain what is happening along with the red arrows on the map.
A.) The Pacific Plate and the North American plate are diverging.
B.) The sea floor is spreading where the Pacific and North American plates meet. (Converge)
C.) There is a transform boundary, commonly causing strike-slip faults, between the Pacific and the North American plates.
D.) There is a convergent plate boundary between the oceanic and continental plates.
Answer:
b
Explanation:
why is it true that particles in a rock lying on the group have kinetic energy and energy
Answer:
Particles of objects have both kinetic and potential energy. Because particles are constantly in motion, they have kinetic energy. These particles are arranged in specific ways in different objects. Therefore, they also have potential energy.
Explanation:
Plz mark me as brainist
a measuring cylinder cannot be used to measure the volume of regular shaped solids true or fakse
Answer:
False
Explanation:
The statement is false because the volume of an irregular object can either be measured by the use of a measuring cylinder or an overflowing jar. That's the standard method of measuring irregular objects volume.
When any salt is dissolved in water, the ionic bonds between the atoms must be broken in order for the salt to dissolve. The energy
stored up in these bonds then must be
A) convert into light
B) stored in the water
C) released to the environment
D) converted into mechanical energy
Answer:
C released to the environment
Explanation:
I just did it in class
What is the chemical formula for carbon fibre? (specifically if possible)
Answer: 90% Polyacrylonitrile (PAN)
(C3H3N)n - n signifies the chain
10% Rayon & Pitch Base
Explanation:
Just Because...
Come up with another way to separate certain mixture?
Answer:
Oil
Explanation:
How could you increase the atomic number?
Answer:
So the atomic number increases with each element. The atomic mass is the sum of the protons and neutrons. As the atomic number increases it causes an increase in the atomic mass. However sometimes there is not a corresponding increase in the number of neutrons...
Explanation:
:)) good luck!!!
HELP ASAP WILL MARK BRAINLIEST!!!
Answer:
22.4/3.8=5.89
Explanation:
