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
Sedbober [7]
3 years ago
12

A beaker contains a small amount of baking soda. A few drops of hydrochloric acid are added to the baking soda. Fizzing and bubb

ling are observed. Based on the observation, what can be determined
Chemistry
1 answer:
frozen [14]3 years ago
4 0

Answer:

rfkrie

Explanation:

You might be interested in
How is it possible for helium to have 8 spectral lines when it only has 2 electrons?
neonofarm [45]

It has more lines in it compared to hydrogen emission spectrum. It is mainly because the helium atom has more electrons than a hydrogen atom. Therefore, more electrons get excited when we pass a white light beam through a helium sample, and it causes the emission of more spectral lines

5 0
3 years ago
250 kilograms is how many pounds?
Kruka [31]

Answer:

250 Kg = 551.155655 lb

Explanation:

6 0
2 years ago
Read 2 more answers
How many atoms are there in 3.559*10^-6 mol of krypton?
algol [13]

Answer:

The answer is

<h2>2.143 \times  {10}^{18}  \:  \: atoms</h2>

Explanation:

To find the number of atoms given the number of moles we use the formula

N = n × L

where

N is the number of entities

n is the number of moles

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question

n = 3.559 \times  {10}^{ - 6}  \: mol

Substitute the values into the above formula and solve

That's

<h3>N  = 3.559 \times  {10}^{ - 6}  \times 6.02 \times  {10}^{23}  \\  = 2.1425 \times  {10}^{18}</h3>

We have the final answer as

<h3>N  = 2.143 \times  {10}^{18}  \:  \: atoms</h3>

Hope this helps you

3 0
3 years ago
When a 4.2 gram sample of mercury (Il) oxide, HgO is decomposed into its elements by •
Usimov [2.4K]

Hg = (3.2 : 4.2) x 100% = 76.19%

O = (1 : 4.2) x 100% = 23.81%

7 0
2 years ago
I NEED HELP PLEASE ANSWER
Jobisdone [24]
Sulfur has 6 electrons, so we put 6 in the first spot. 
Oxygen has 6 electrons too, but since there are 3, we would multiply 6 times 3 , which equals 18, then add that too.
The 2 is added because there is that negative 2 at the top of the formular, which indicates the presence of two extra valence electrons.

the equation would be

6 + 18 + 2  = 26


4 0
3 years ago
Other questions:
  • #NEEDHELPASAP #MARINESCIENCE
    5·1 answer
  • In the reaction ______ H2 + N2 ----&gt; 2 NH3, what coefficient should be placed in front of H2 to balance the reaction?
    7·2 answers
  • List two situations in which measurements have unlimited number of significant figures
    7·1 answer
  • What is the concentration in (a) ppmv, and (b) percent by volume, of carbon monoxide (co) that has a concentration of 35 mg/m3?
    6·1 answer
  • PLEASE HURRY!!!
    14·1 answer
  • What are transitions between a liquid and a solid called? identify which way they are transitioning
    12·2 answers
  • HELP MEE
    13·2 answers
  • Does Phosphorus (P) gain/lose electrons to form ions
    5·1 answer
  • The proximate reason for the uptake by plants of nutrients like ammonium nitrate is?
    12·1 answer
  • What enone product would you expect to obtain from intramolecular aldol condensation of 5-oxohexanal?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!