1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
quester [9]
3 years ago
8

During a flame test, a lithium salt produces a characteristic red flame. This red color is produced when electrons in excited li

thium atoms
1. are lost by the atoms
2. are gained by the atoms
3. return to lower energy states within the atoms
4. move to higher energy states
Chemistry
1 answer:
hoa [83]3 years ago
6 0
During a flame test, a lithium salt produces a characteristic red flame. This red color is produced when electrons in excited lithium atoms <span>return to lower energy states within the atoms.

Hope I've Helped!
</span>
You might be interested in
A eudiometer contains a 65.0 ml sample of a gas collected
SCORPION-xisa [38]

Answer:

53.1 mL

Explanation:

Let's assume an ideal gas, and at the Standard Temperature and Pressure are equal to 273 K and 101.325 kPa.

For the ideal gas law:

P1*V1/T1 = P2*V2/T2

Where P is the pressure, V is the volume, T is temperature, 1 is the initial state and 2 the final state.

At the eudiometer, there is a mixture between the gas and the water vapor, thus, the total pressure is the sum of the partial pressure of the components. The pressure of the gas is:

P1 = 92.5 - 2.8 = 89.7 kPa

T1 = 23°C + 273 = 296 K

89.7*65/296 = 101.325*V2/273

101.325V2 = 5377.45

V2 = 53.1 mL

6 0
3 years ago
The unit used to measure the diameter of an atom is an?
ohaa [14]

Answer:

Atomic Radii

Have a great day!

6 0
2 years ago
Read 2 more answers
How many liters of hydrogen gas is formed from the complete reaction of 15.9 g c? assume that the hydrogen gas is collected at a
ololo11 [35]
C + H2O -> H2 + CO
n(C) = 15.9/12 = 1.325 (mol)
=> n(H2) = 1.325 mol
We have:
PV = nRT
=> V = (nRT)/P
(R = 22.4/273 = 0.082)
V = (1.325 x 0.082 x 360)/1 = 39.114 (L)
7 0
3 years ago
Read 2 more answers
The entropy of a sample of CO2 increases as the CO2 changes from
andrew-mc [135]
The answer is (4) solid to gas. The entropy is the measurement of disorder. The entropy of CO2 under different status will increase from solid to liquid to gas. So the answer is (4).
8 0
3 years ago
Read 2 more answers
A highway engineer is researching de-icing compounds for clearing ice from streets in winter. She wants a compound that has +2 i
wolverine [178]

Magnesium combined with chlorine.

How?

  • Look at the question .Compound has -1 charge in it .Hence it contains Halogen.
  • Looking at the options Option B and C contain Iodine and chlorine i.e halogens .

Now come to metals side.

  • Potassium has valency 1(Look the Electronic configuration below)

\\ \sf\longmapsto 1s^22s^22p^63s^23p^64s^1

Hence it will contain +1 charge which is omitted directly .

Now come to option C.

  • Magnesium has charge +2(Look at EC below

\\ \sf\longmapsto 1s^22s^22p^63s^2

Hence the compound formed is given by

\\ \sf\longmapsto MgCl_2

Hence option C is correct.

3 0
2 years ago
Other questions:
  • Pleas Help!
    15·1 answer
  • Why do scientists need governmental funding?
    11·1 answer
  • What role does the oxidizing agent play in a redox reaction
    15·2 answers
  • A radio station's channel, such as 100.7 FM or 92.3 FM, is actually it's frequency in megahertz, where 1 MHz=10^6Hz and 1 Hz=1s^
    6·1 answer
  • 1. The density of solid Cu is 8.96g/cm3 . How many atoms are present per cubic centimeter(cm3) of Cu ?
    12·1 answer
  • RIGHT ANWSER GETS MARKED BRAINLIEST
    11·2 answers
  • What is the charge of an aluminum ion? (2 points) Select one: a. 2+ b. 3+ c. 2- d. 3-
    8·1 answer
  • A beaker holds 962 g of a brine solution that is 6.20 percent salt. If 123g of water are evaporated from the beaker, how much sa
    15·1 answer
  • Which two smaller groups is the animals kingdom is divided into
    12·1 answer
  • What example of mixture could be seperated using two or more techniques? Explain your answer
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!