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
Korvikt [17]
3 years ago
11

A scientist spilled a few drops of dilute hydrochloric acid (hcl) on a lab table. for safety purposes, the scientist sprinkled s

ome baking soda (nahco3) onto the spill. which observation would provide the best evidence that a chemical reaction occurred
Chemistry
1 answer:
leonid [27]3 years ago
3 0
Hello!

The observation that would provide the best evidence that a chemical reaction occurred is that The baking soda and hydrochloric acid combined, and bubbles formed.

When baking soda (NaHCO₃) and Hydrochloric Acid (HCl) combine, the following reaction happens:

NaHCO₃ + HCl → NaCl + H₂O + CO₂(g)↑

The gaseous Carbon Dioxide (CO₂) generated in this reaction is the responsible for the bubbles. The releasing of this gas is an evidence that a chemical reaction occurred between NaHCO₃ and HCl.

Have a nice day!
You might be interested in
Consultați sistemul periodic și aranjați în ordinea creșterii caracterului nemetalic următoarele elemente:
lukranit [14]
I’m sorry I just really need points rn I love you
7 0
2 years ago
What draws water back to earth
spayn [35]

Gravity is the force that draws water back to the earth in the forms of rain, sleet and, snow.

7 0
3 years ago
Read 2 more answers
Which element has higher ionization energy? chlorine or carbon
PtichkaEL [24]

Answer:

chlorine has higher ionization than carbon

Explanation:

Chlorine is only one row below carbon, but it is three columns to the right in this case the IP of chlorine would be predicted to be greater than the IP of carbon.

3 0
3 years ago
How many moles are in 0.06 grams of iron
Eva8 [605]
No of mole = reacting mass/ molar mass

No of mole = 0.06/56

No of mole = 0.00107mol....

Or...

1mole of iron contain 56gmol¯¹
:-x mole is contained in 0.06g

Porata
And you'll have..

x = 0.06/56

x = 0.00107mol.....
3 0
3 years ago
To answer this question, you may need access to the periodic table of elements.
OleMash [197]

Answer:

b.) Br and Br

Explanation:

A covalent bond occurs when electrons are shared between two atoms causing them to form a bond.

A "pure" covalent bond refers to a nonpolar covalent bond. In these bonds, the electrons are shared equally between two atoms as a result of the absence of an (or very small) electronegativity difference. The purest covalent bond would therefore be between two atoms of the same electronegativity. Two bromines (Br) have the same electronegativity, thus making it the purest covalent bond.

Polar covalent bonds occur when electrons are shared unequally between two atoms. There is a larger electronegativity difference between the two atoms, but not large enough to classify the bonds as ionic. In this case, a.) and c.) are polar covalent bonds and d.) is an ionic bond.

7 0
1 year ago
Other questions:
  • Chemical reactions H2SO4 +NaHCO3=​
    13·2 answers
  • A solution is made by dissolving 3.8 moles of sodium chloride (NaCl) in 185 grams of water. If the molal boiling point constant
    11·1 answer
  • Temperature is an example of a categorical variable a quantitative variable either a quantitative or categorical variable neithe
    9·1 answer
  • For the main group elements( excluding the transition elements) , is it necessary to memorize the type of ion each element makes
    5·1 answer
  • How do i explain this step by step?
    9·1 answer
  • PLEASE HELPPP MEEEE
    12·2 answers
  • Ketones undergo a reduction when treated with sodium borohydride, NaBH4. The product of the above reaction has the following spe
    14·1 answer
  • Which of these might affect whether or not a particular chemical reaction occurs?
    10·1 answer
  • What type of reproduction occurs in members of the bacteria kingdom?
    11·1 answer
  • sound travels 1,500 m/s through water at 25 degrees celciesunder these conditions how long would it take to travel 300m
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!