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
velikii [3]
3 years ago
8

Which laboratory activity involves a chemical change?

Chemistry
2 answers:
Darya [45]3 years ago
7 0

Answer:

It is the first one.

Explanation:

Because yeah.

ipn [44]3 years ago
5 0

Answer:

the answer is the first one (a)

You might be interested in
The products in this reaction
Delvig [45]

Answer:

It’s either B or C:

В. have the same atom arrangement as the reactants.

С. have different properties than the reactants.

Explanation:

Sorry, I don’t know a lot about this topic :(

4 0
3 years ago
By definition, a(n) _______acid is any species that can donate a proton. Ammonia has a proton bonded to nitrogen, so ammonia can
pochemuha

Answer:

A Brønsted-Lowry acid.

A Brønsted-Lowry base.

Ammonia is an acceptor of proton.

Explanation:

A Brønsted-Lowry acid is any atom that can donate a proton (H +) to another atom or molecule whereas Brønsted-Lowry base is any species that can accept a proton from another atom or molecule or in other words, a Brønsted-Lowry acid is a proton donor, while on the other hand, a Brønsted-Lowry base is a proton acceptor. The ammonia molecule accepts the hydrogen ion is considered as the Brønsted-Lowry base.

5 0
3 years ago
1. What is the Celsius Temperature Scale of K=303?
qaws [65]

Explanation:

303k -273k=30°c because 0°c is 273K

6 0
2 years ago
Read 2 more answers
Im doing a escape room and i dont know what the answer is
Oduvanchick [21]

Answer:

thats pink floyds album cover LOL

but the answer is to prism

hope this helps :)

8 0
3 years ago
Compared to a swimming pool filled with water, a hot cup of coffee has higher temperature, but less thermal energy
Julli [10]
Thermal energy equation is;
    Q = mcΔθ

Q = Thermal energy
m = mass
c = specific heat
Δθ = Temperature difference

the hot cup of coffee has a higher temperature. But the mass of coffee is very low compared to the mass of water in swimming pool. The maximum temperature for coffee only can go up to 100 ⁰C since the boiling point of water is 100 ⁰C. But the mass of water in swimming pool is very large and the thermal enegy is very high compared to the coffee cup due to that reason. 
3 0
3 years ago
Other questions:
  • How many valence electrons do the alkaline-earth elements have?
    14·2 answers
  • What is the mass of potassium iodide (166.00 g/mol) that yields 0.500 g of lead(ii) iodide (461.0 g/mol) precipitate? (you must
    9·1 answer
  • Once the following equation is balanced with the smallest set of whole number coefficients, what is the sum of the coefficients?
    11·1 answer
  • Calculate the number of moles of each compound, given the number of molecules.
    5·1 answer
  • Is hydrogen a gas?<br> or is it a sold ?
    10·2 answers
  • What is consciousness? ...
    10·1 answer
  • About how far does the S wave travel through Earth in 13 minutes? 2,000 km 4,000 km 6,000 km 8,000 km​
    12·2 answers
  • Which is an example of a homoozygous genotype? (There can be more than one answer)
    13·1 answer
  • What is the approximate volume of 280 g of chlorine gas (Cl2) at STP
    15·1 answer
  • 8. Copper is a reddish brown metal that is easily
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!