What are the steps needed to convert the mass of an element to the number of atoms in the element?

What are the steps needed to convert the mass of an element to the number of atoms in the element?
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What are the steps needed to convert 77.2 grams of methane to molecules of methane. Please wrote them out ( indluding tchart)?

Description : What are the steps needed to convert 77.2 grams of methane to molecules of methane. Please wrote them out ( indluding tchart)?

Last Answer : Step1: Find molar mass of methane, CH4. C=12; H=1; 12+1+1+1+1 = 16 g/moleStep2: Convert grams to moles. 77.2 g x 1 mole/16 g = 4.825 moles methaneStep3: Convert moles to molecules using ... 23 molecules/mole = 2.90x10^24 moleculesUnfortunately, I don't know what a tchart is, so I didn't include it.

What is A chemical equation where the number of atoms of each element are the same on both sides coefficients are often needed to balance a chemical equation?

Description : What is A chemical equation where the number of atoms of each element are the same on both sides coefficients are often needed to balance a chemical equation?

Last Answer : Need answer

Atoms of the same element having same atomic number and different mass number are known as?

Description : Atoms of the same element having same atomic number and different mass number are known as?

Last Answer : Isotopes

It is important to balance the chemical equations to satisfy the law of conservation of mass. Which of the following statements of the law is incorrect? (a) The total mass of the elements present in the reactants is equal to the total mass of the elements present in the products. (b) The number of atoms of each element remains the same, before and after a chemical reaction. (c) The chemical composition of the reactants is the same before and after the reaction (d) Mass can neither be created nor can it be destroyed in a chemical Reaction.

Description : It is important to balance the chemical equations to satisfy the law of conservation of mass. Which of the following statements of the law is incorrect? (a) The total mass of the elements present in ... the reaction (d) Mass can neither be created nor can it be destroyed in a chemical Reaction.

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`3.011 xx 10^(22)` atoms of an element weight 1.15 g. The atomic mass of the element is :-

Description : `3.011 xx 10^(22)` atoms of an element weight 1.15 g. The atomic mass of the element is :-

Last Answer : `3.011 xx 10^(22)` atoms of an element weight 1.15 g. The atomic mass of the element is :- A. 10 amu B. 2.3 amu C. 35.5 amu D. 23 amu

Atoms of same element having different mass numbers are Called _______. (1) Isobars (2) Isotopes (3) (3)Isotones (4) (4) Isomers

Description : Atoms of same element having different mass numbers are Called _______. (1) Isobars (2) Isotopes (3) (3)Isotones (4) (4) Isomers

Last Answer : (2) Isotopes Explanation: Atoms that have the same atomic number but different atomic masses are called isotopes. The difference in mass arises due to the atoms containing a different number of neutrons ... -14 are three isotopes of the element carbon with mass numbers 12, 13 and 14 respectively.

Atoms of same element having different mass numbers are called__________ (1) Isobars (2) Isotopes (3) Isotones (4) Isomers

Description : Atoms of same element having different mass numbers are called__________ (1) Isobars (2) Isotopes (3) Isotones (4) Isomers

Last Answer : Isotopes

If you needed to use powdered copper sulfate in an experiment and were only supplied with clumps of copper sulfate which tool would you need convert the copper sulfate to usable form?

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The reagent needed to convert 2-butyne to cis-2-butene is : (a) H2/Pt (b) H2/Lindlar’s catalyst (c) Li/NH3 (d) Na/NH3

Description : The reagent needed to convert 2-butyne to cis-2-butene is : (a) H2/Pt (b) H2/Lindlar’s catalyst (c) Li/NH3 (d) Na/NH3

Last Answer : H2/Lindlar’s catalyst

Calculate the series resistance needed to convert a D' Arsonval meter with FSD of 100uA and a meter resistance of 1kohm to a voltmeter with 10V FSD.

Description : Calculate the series resistance needed to convert a D' Arsonval meter with FSD of 100uA and a meter resistance of 1kohm to a voltmeter with 10V FSD.

Last Answer : Rs=10V/100uA - 1kohm = 99kohm

What is the reason that in the beginning of encoded file there is data telling which digit/letter represents which word ? a) It is needed to convert the file in compression form b) it is needed to convert the file in encoded form c) it is needed to convert the file in its original uncompressed form d) it is needed to convert the file in graphical form

Description : What is the reason that in the beginning of encoded file there is data telling which digit/letter represents which word ? a) It is needed to convert the file in compression form b) it is ... convert the file in its original uncompressed form d) it is needed to convert the file in graphical form

Last Answer : c) it is needed to convert the file in its original uncompressed form

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In project planning, it explains.....................that are needed to for the growth of product. a. a series of actions b. steps c. both a, b d. none of the above

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The recruiting and selection process should include enough steps to yield the information needed to make accurate selection decisions. However, the stages of the process should be sequenced so that the more expensive steps are A)near the beginning. B)always completed before anything else. C)near the end. D)paid by the prospects rather than the company.

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Last Answer : C)near the end.

The correct sequence of steps needed to improve system stability is

Description : The correct sequence of steps needed to improve system stability is (a) Insert derivation action, Use negative feedback and Reduce gain (b) Reduce gain, Use negative feedback and Insert ... action and Use negative feedback (d) Use negative feedback, Reduce gain and Insert derivation action

Last Answer : The correct sequence of steps needed to improve system stability is Use negative feedback, Reduce gain and Insert derivation action

Determining the sample interval (represented by k), randomly selecting a number between 1 and k, and including each kth element in your sample are the steps for which form of sampling? a. Simple Random Sampling b. Stratified Random Sampling c. Systematic Sampling d. Cluster sampling

Description : Determining the sample interval (represented by k), randomly selecting a number between 1 and k, and including each kth element in your sample are the steps for which form of sampling? a. Simple Random Sampling b. Stratified Random Sampling c. Systematic Sampling d. Cluster sampling

Last Answer : c. Systematic Sampling

In the mammalian body, this element plays many important roles. Try to identify this element with the fewest number of clues. This element is required to insure the integrity and permeability of cell membranes, to regulate nerve and muscle excitability, to help maintain normal muscular contraction, and to assure cardiac rhythmicity. It also plays a essential role in several of the enzymatic steps involved in blood coagulation and is the most important element of bone salt. Name this element.

Description : In the mammalian body, this element plays many important roles. Try to identify this element with the fewest number of clues. This element is required to insure the integrity and permeability of ... involved in blood coagulation and is the most important element of bone salt. Name this element.

Last Answer : ANSWER: Calcium 

What is an atom that has the same number of protons as other atoms of the same element but different number of nutrons?

Description : What is an atom that has the same number of protons as other atoms of the same element but different number of nutrons?

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What part of the chemical equation tells the number of atoms of each element?

Description : What part of the chemical equation tells the number of atoms of each element?

Last Answer : That depends on the nature of the reaction. For a typicalreaction, it will be the subscript following the symbol of theelement multiplied by the coefficient. For example, in Na2SO4 therewill be 2 Na atoms, 1 S atom ... If the reaction was 2Na2SO4, there would be 4 Na atoms, 2 S atoms and 8 O atoms.

All atoms with the same number of ______ in the atomic nucleus are the same element?

Description : All atoms with the same number of ______ in the atomic nucleus are the same element?

Last Answer : progdk

All atoms of a given element have exactly the same number of which type of subatomic particle?

Description : All atoms of a given element have exactly the same number of which type of subatomic particle?

Last Answer : Protons A+

Which one is different for the neutral atoms of the isotopes of an element? (A) Atomic weights (B) Atomic numbers (C) Number of protons (D) Number of electrons

Description : Which one is different for the neutral atoms of the isotopes of an element? (A) Atomic weights (B) Atomic numbers (C) Number of protons (D) Number of electrons

Last Answer : (A) Atomic weights

Which one is different for the neutral atoms of the isotopes of an element? (A) Atomic weights (B) Atomic numbers (C) Number of protons (D) Number of electrons

Description : Which one is different for the neutral atoms of the isotopes of an element? (A) Atomic weights (B) Atomic numbers (C) Number of protons (D) Number of electrons

Last Answer : (A) Atomic weights

Which one of the following best defines the word “allotropes”? A Different structural forms of an element B A pair of substances that differ by H+ C Elements that possess properties intermediate between those of metals and nonmetals D Atoms of a given atomic number that have a specific number of neutrons E The different phases (solid, liquid or gas) of a substance

Description : Which one of the following best defines the word allotropes ? A Different structural forms of an element B A pair of substances that differ by H+ C Elements that possess properties intermediate between ... a specific number of neutrons E The different phases (solid, liquid or gas) of a substance

Last Answer : A Different structural forms of an element 

Two atoms of the same element will have the same number of protons. If they have a different number of neutrons, what are they called?

Description : Two atoms of the same element will have the same number of protons. If they have a different number of neutrons, what are they called?

Last Answer : ANSWER: ISOTOPES

State super position theorem. Write steps to find current in an element using super position theorem.

Description : State super position theorem. Write steps to find current in an element using super position theorem.

Last Answer : Statement of superposition theorem: In any linear network containing two or more sources, the current in any element is equal to algebraic sum of the current caused by individual source acting ... . Add algebraically the voltage drops and branch currents to obtain combined effect of all sources.

Write the steps for finding the current through an element by Thevenin’s theorem.

Description : Write the steps for finding the current through an element by Thevenin’s theorem.

Last Answer : Steps to find Thevenin's equivalent circuit, taking an example is as follows:  1. From the given circuit (fig.a),Remove RL from the terminals A and B and redraw the circuit as shown in ... (fig.d)from where it was temporarily removed earlier.  Current flowing through RL is given by 

What atoms of the same element but with various atomic weights?

Description : What atoms of the same element but with various atomic weights?

Last Answer : These are the isotopes.

What is the name of one element in the table above which is a gas at room temperature and in which the atoms are joined together in molecules.?

Description : What is the name of one element in the table above which is a gas at room temperature and in which the atoms are joined together in molecules.?

Last Answer : Oxygen would be such an element (as would hydrogen, nitrogen,fluorine, chlorine).

What is a pure substance whose smallest unit is made of atoms of more than one element?

Description : What is a pure substance whose smallest unit is made of atoms of more than one element?

Last Answer : Compound

What element is created when hydrogen atoms fuse together in the sun and core?

Description : What element is created when hydrogen atoms fuse together in the sun and core?

Last Answer : Helium.

What Atoms of a given element are all?

Description : What Atoms of a given element are all?

Last Answer : Need answer

What do all atom's of any single element have in common?

Description : What do all atom's of any single element have in common?

Last Answer : All atoms of any single element have the same number of protons and electrons.

A ________________________ uses chemical symbols to represent the atoms of an element and their ratios in a chemical compound.?

Description : A ________________________ uses chemical symbols to represent the atoms of an element and their ratios in a chemical compound.?

Last Answer : chemical formula

Dentification: Atoms of the same element but with various atomic weight?

Description : Dentification: Atoms of the same element but with various atomic weight?

Last Answer : Isotope

Dentification: Atoms of the same element but with various atomic weight?

Description : Dentification: Atoms of the same element but with various atomic weight?

Last Answer : Isotope

How many atoms are present in one gm-atom of an element? (A) 2 × 10 23 (B) 6 × 10 23 (C) 6 × 10 32 (D) 5 × 10 5

Description : How many atoms are present in one gm-atom of an element? (A) 2 × 10 23 (B) 6 × 10 23 (C) 6 × 10 32 (D) 5 × 10 5

Last Answer : (B) 6 × 10 23

An inert element has electron shells that a. Overlap The Shells Of Other Atoms. b. Are Completely Filled With Electrons. c. Yield Hydrogen Ions. d. Form Covalent Bonds.

Description : An inert element has electron shells that a. Overlap The Shells Of Other Atoms. b. Are Completely Filled With Electrons. c. Yield Hydrogen Ions. d. Form Covalent Bonds.

Last Answer : b. Are Completely Filled With Electrons.

The covalent bonding of atoms forms a/an a. Molecule. b. Ion. c. Element. d. Isomer.

Description : The covalent bonding of atoms forms a/an a. Molecule. b. Ion. c. Element. d. Isomer.

Last Answer : a. Molecule.

Atoms of the same element that have different numbers of neutrons are called _______ a. isotopes b. ions c. isomers d. inert elements

Description : Atoms of the same element that have different numbers of neutrons are called _______ a. isotopes b. ions c. isomers d. inert elements

Last Answer : a. isotopes

An element used in semiconductors whose atoms have three valence electrons is

Last Answer : An element used in semiconductors whose atoms have three valence electrons is An acceptor.

_____ is an element used in semiconductors whose atoms have three valence electrons.

Last Answer : An acceptor is an element used in semiconductors whose atoms have three valence electrons.

Calculate the number of atoms present in one drop of water having mass 1.8 g .

Description : Calculate the number of atoms present in one drop of water having mass 1.8 g .

Last Answer : Calculate the number of atoms present in one drop of water having mass 1.8 g . A. `0.3N_(A)` B. `0.2N_(A)` C. `0.1N_(A)` D. `0.01N_(A)`

Number of atoms of He in 100 amu of He is : (Atomic mass of He is 4) :-

Description : Number of atoms of He in 100 amu of He is : (Atomic mass of He is 4) :-

Last Answer : Number of atoms of He in 100 amu of He is : (Atomic mass of He is 4) :- A. 25 B. 100 C. 50 D. `100 xx 6 xx 10^(-23)`

Atomic mass is an atoms number of what?

Description : Atomic mass is an atoms number of what?

Last Answer : it depends because isotopes have different nucleon numbers but their atomic number stays the same.

What is the number of atoms constituting a molecule known as - (1) Atomic number (2) Isotopes (3) Atomic mass (4) Atomicity

Description : What is the number of atoms constituting a molecule known as - (1) Atomic number (2) Isotopes (3) Atomic mass (4) Atomicity

Last Answer : (4) Atomicity Explanation: Atomicity is the total number of atoms present in one molecule of an element.

Pick out the wrong statement. (A) Atoms with same number of nucleons but different number of protons are called isobars (B) Atoms with same number of protons but different number of nucleons are called isoters (C) Out of α, β, and γ-rays, the one having maximum penetration power are γ-rays (D) The product formed by emission of α-particle has mass number less by 4 units than the parent nuclide

Description : Pick out the wrong statement. (A) Atoms with same number of nucleons but different number of protons are called isobars (B) Atoms with same number of protons but different number of nucleons are ... product formed by emission of α-particle has mass number less by 4 units than the parent nuclide

Last Answer : (B) Atoms with same number of protons but different number of nucleons are called isoters