The unknown metal ion gave a yellow/orange flame test and no precipitate with ammonium carbonate. What is the unknown metal?

Answers

Answer 1

Answer:

Sodium

Explanation:


Related Questions

How many square centimeters are in an area of 5.90 inch^2 ?

Answers

Answer:

38.0644 cm^2

Explanation:

5.90 ×6.451   cm^2

The allele for dimples is dominant and the allele for no dimples is recessive. If two parents that are heterozygous for dimples produce a child, what are the chances the child will have dimples? A. 25% B. 50% C. 75% D. 100%

Answers

The chances the child will have dimples is 50%. Hence The correct option is (B).

What is Heredity ?

Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents.

There is a 50% chance that the child does not obtain the allele needed for dimples (dd), and a 50% chance that the child is heterozygous (Dd). Because dimples is an autosomal dominant trait, heterozygosity will express dimples, leading to a 50% chance that the child will have dimples.

Therefore, The chances the child will have dimples is 50%. Hence The correct option is (B).

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The lines of latitude are measured
from a line at the center of the Earth
called the


Answers

Answer:

parallels

Explanation:

hope it may help you

Which of the following is a result of increasing the temperature of a system that includes a reaction in the forward direction that is exothermic?
a) The equilibrium constant decreases.
b) The concentrations of the products increase.
c) The equilibrium constant increases.
d) The concentrations of the reactants decrease.

Answers

Answer:

I believe the answer your looking for is out of A or B

Explanation:

Option B because if the heat increases its essentially causing the concentration to increase by replacing the weak bonds with stronger ones

In increasing the temperature of a system that includes a reaction in the forward direction that is exothermic, the concentration rises as weak bonds are replaced by stronger ones.

What is the temperature of a system?

The average kinetic energy of the atoms or molecules in a system is measured by temperature. No heat is transmitted between two objects in thermal equilibrium, according to the zeroth law of thermodynamics.

In conclusion, as the temperature of the system rises, the concentration rises as weak bonds are replaced by stronger ones.

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How does the volume occupied by a cubic centimeter (cm3) compare with the volume occupied by a milliliter

Answers

Answer:

One cubic centimeter is equal to one milliliter. Cubic centimeter is used interchangeably with millimeter. Centimeter belongs in the CGS unit system (centimeter-gram-second system) while liter belongs in the SI (Système International d'Unités)  unit system. These two are equal.

Explanation:

if 10 moles of A and 7.5 moles of B are taken in a flask, identify the value of moles of A4B3 produced in a reaction.​

Answers

The number of moles of A4B3 produced in a reaction is obtained  by stoichiometry.

The term stoichiometry refers to mass-mole relationship. The first step in solving this problem is by writing the correct reaction equation as follows;

4A + 3B -------> A4B3

If 4 moles of A yields 1 mole of A4B3

10 moles of A yields 10 * 1/4 = 2.5 moles of A4B3

Therefore, 2.5 moles of A4B3  is produced.

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what will I benefit or what will I gain if I know the absorbance and emission of any substance?

Answers

You will gain more knowledge and it will be for your own good

how to find the average speed of something

Answers

Answer:

if you want to find average speed so u need to use this formula

Average speed = [tex]\frac{Total Displacement}{Total Time}[/tex]

The ideal gas constant R can be denoted as _______.
A. R = 9.315 (Pa × m3) / (mole × K)
B. R = 9.315 J / (mole × K)
C. R = 0.0821 (L × atm) / (mole × K)
D. All of the Above E. None of the Above

Answers

only C is correct

in the unit of J/(mole x K) and (Pa x m3)/ (mole x K) the value should be 8.314

Acrylonitrile and ethyl acetate have the same boiling point: 77.2ºC. In one to two sentences, explain what outcome you would expect if a mixture of these two substances were distilled (SHORT ANSWER)

Answers

Acrylonitrile and ethyl acetate will be collected together since they both have the same boiling point.

The method of distillation highly depends on the difference between the boiling points of the Acrylonitrile and ethyl acetate.

Since they have the same boiling point, the two substances turn into vapor at the same temperature and are collected simultaneously.

Hence separation is not achieved by distillation.

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Answer:

They would boil at the same rate. Basically meaning, that they would both be finished distilling at the same time.

Explanation:

This is what I put (this is for you to revise and it has not been graded yet DO NOT CHEAT with this answer just take in the info and revise it)

lidocain có tính bazơ không

Answers

Answer:

Lidocain là cơ bản.

Tôi hy vọng câu trả lời của tôi là hữu ích cho bạn.

PLEASE SOLVE THIS QUESTION.
VERY MUCH IMPORTANT ​

Answers

Answer:

[tex]thank \: you[/tex]

Who developed the gas law that relates pressure and temperature?

Answers

Explanation:

physicist Robert Boyle

Answer: Boyle

Explanation: Educere Answer

Which direction does heat flow from

Answers

And unless people interfere, thermal energy — or heat — naturally flows in one direction only: from hot toward cold. Heat moves naturally by any of three means. The processes are known as conduction, convection and radiation. Sometimes more than one may occur at the same time

Answer:

A

Explanation:

hot to cold; jus took the quiz;)

Which species is the conjugate acid of the hemiacetal formed by reaction of benzaldehyde with methanol containing a trace of acid?

Answers

Answer:

Sulphuric acid is the on

Explanation:

think so

Equal masses of five unknown non-electrolytes are dissolved in water and the boiling point elevations are measured. Rank the following non-electrolytes from highest to lowest molar mass.
A. Boiling point of D (aq) = 103.2 degree C
B. Boiling point of A (aq) = 102.4 degree C
C. Boiling point of E (aq) = 101.3 degree C
D. Boiling point of B (aq) = 101.9 degree C
E. Boiling point of C (aq) = 100.5 degree C

Answers

Not sure but good luck

what is the density of a 5 mL sample of 1.95g of Gold

Answers

Answer:

density=mass/volume

=1.95/5 = 0.39 g(mL)-¹

halogens can react with metals by accepting a/an____ from a metal atom and forming an ionic compound

Answers

halogen can react with metals by accepting an electron from metal atom forming ionic compound ( metal forms + ion, halogen forms - negative halide ion)

10 advantages of atomic absorption spectrometer over flame photometer​

Answers

Answer:

(1) It does not suffer from spectral interference, which occurs in flame emission spectroscopy.

(2) By atomic absorption technique, traces of one element can easily be determined in presence of high concentration of other elements.

The technique makes use of the atomic absorption spectrum of a sample in order to assess the concentration of specific analytes within it. It requires standards with known analyte content to establish the relation between the measured absorbance and the analyte concentration and relies therefore on the Beer–Lambert law.

0.5 mole of Na2SO4 x 10 H2O consists of what​

Answers

Answer:

» It contains two atoms of sodium sulphate

» It contains 10 molecules of water.

is time a fundamental quantities or units?

Answers

Answer: Its fundamental quantities

The SI is on the seven SI base units for seven base quantities.

pls mark brainliest

The density of Silver is 10.5 g/mL. How much mass would be present given a silver cube
with a volume of 25.0 mL?


PLEASE HELP ASAP

Answers

Answer:

m=dxv

= 10.5 x 965 = 10132.5 rounded off to 10100 g

Explanation:

In a fission reaction a 235U nucleus captures a neutron. This results in the products 141Ba and 92Kr along with how many neutrons?
A. 1.
B. 2.
C. 3.
D. 5.

Answers

B 2 neutrons. total initial mass is 235 when it fissions, the total mass need to be conserved. hence 141+92=233 it shows that there are 2 neutrons (1 mass each) as another product

CHAPTER 8 FORCE AND MOTION

Choose the S.I. unit for pressure.

1. Watt
2. Joule
3. Pascal
4.Newton

Answers

SI unit for pressure is Pascal

Question 18(Multiple Choice Worth 5 points)
(03.02 MC)
Which of the following elements has properties different than the rest?
H
K
N
O

Answers

Answer:

H

hydrogen have different properties

How can the Swartz process be modified to work for bacteria? Explain.​

Answers

Answer:

https://swartzbiotechnologylab.sites.stanford.edu/research

Explanation:

Alkyl chlorides and alkyl bromides are typically transformed into alkyl fluorides in the organic reaction known as the Swarts Reaction.

Swartz reaction?

Frederick Jean Edmond Swarts first reported this procedure in 1892. Heating the alkyl chloride or alkyl bromide in the presence of heavy metal fluorides like AGF, Hg2F2, CoF2, or SbF3 causes this reaction.

Swartz process can be used to modify work for bacteria. Bacterial biofilms are collections of microorganisms where the cells are immersed in an extracellular polymeric matrix that the bacteria have self-produced.

In contrast to planktonic bacteria, which are in a state of free movement in a bulk solution, this situation is very different.

Applications:

In this process, alkyl fluorides are created.Fluorinated aliphatic organic molecules, or Freons, are produced via a different variation of the same process.Anhydrous hydrogen fluoride is fluorinated to produce Freons in the presence of antimony salts, which exhibit the oxidation states +3 and +5.

Therefore, Alkyl chlorides and alkyl bromides are typically transformed into alkyl fluorides in the organic reaction known as the Swarts Reaction.

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The atomic size of atoms ________. A) increases going across a period B) decreases going down within a group C) increases going down within a group D) does not change going down within a group

Answers

Answer: my answer is A) increases going across a period

Explanation: because of it nuclear charge as it increases going across a period

HOPE THIS HELPSSSSS!!

Please help!!! Question 1 to 8

Answers

Answer:

1) C - 30

2) A - MgO

3) C - 3Cu + N2 + 3H2O

4) C - 100

Explanation:

What is the volume of 12.0 g of a liquid with a density of 1.37 g/mL?

Answers

Answer:

8.76 ml³

Explanation:

volume = mass ÷ density

How would life be different without penicillin

Answers

Answer:

Without new antibiotics, common infections and minor injuries could become life-threatening and major surgeries and chemotherapy impossible because the treatments we have been using for years are no longer effective.

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