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
allochka39001 [22]
1 year ago
12

Hey chemist tests new measures for paint samples and decides to one mixture stickiness makes it worthless. A scientist working i

n a nearby lab suggests a different used for the sticky mixture. Which statement best describes this situation?
A. combining different types of scientists comments always leads to new discoveries
B. only scientists who are directly involved in investigation should comment on the results
C. other scientists comment made during an investigation can be a useful source of new ideas
D. too many comments made by scientists about the work of others can interfere with progress
Chemistry
1 answer:
sergeinik [125]1 year ago
6 0

Answer: C. other scientists' comments made during an investigation can be a useful source of new ideas

You might be interested in
The elements in the periodic table are arranged in order of
Alenkinab [10]

Answer:

dsgadsagsdgsd

Explanation:

5 0
3 years ago
ANSWER FAST, EASY POINTS
abruzzese [7]

Answer:

Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Once this happens, the salt is dissolved, resulting in a homogeneous solution.

4 0
2 years ago
Read 2 more answers
How long would it take for a car to travel 200km if it has an aventage speed of 55 km/ hr
krek1111 [17]

Answer:

It would take 3.64 hours to travel.

Explanation:

200km with 55 per hour.

200 divided by 55 would equal 3.64.

I am dividing because to solve time would be distance/rate.

I hope this helps! :)

7 0
3 years ago
Read 2 more answers
1. Pewien tlenek azotu o masie cząsteczkowej 108 u zawiera 74,07% tlenu. Wykonaj stosowne obliczenia i napisz wzór sumaryczny te
love history [14]

Answer:

1. Stąd empiryczny wzór substancji to N₂O₅

2. W związku z tym ilość w gramach chlorku sodu NaCl is 114,4 g.

Explanation:

1. Mamy tutaj;

Masa molowa tlenku azotu = 108u

Masa azotu = 14,0067u

Masa tlenu = 15,999 u

74,07% masy tlenku azotu to tlen

Dlatego masa obecnego tlenu = 108 × 74,07 / 100 = 79,9956 u

Masa obecnego azotu = 108 - 79,9956 = 28,0044u

Liczba moli tlenu = 79,9956 / 15,999 = 5,00003 ≈ 5

Liczba moli azotu = 28,0044 / 14,0067 = 1,99935 ≈ 2

Stąd empiryczny wzór substancji to N₂O₅.

2. Kiedy sód reaguje z chlorem, mamy;

2Na (s) + Cl₂ (g) → 2NaCl (s)

Dlatego 2 mole sodu Na reaguje z 1 molem chloru gazowego Cl₂, z wytworzeniem 2 moli chlorku sodu NaCl

W związku z tym 1 mol sodu Na reaguje z 1/2 molem chloru gazowego Cl₂ z wytworzeniem 1 mola chlorku sodu NaCl

Masa Na obecnego w reakcji = 45 g

Masa molowa sodu = 22,989769u

Liczbę moli sodu w 45 g sodu podano w następujący sposób;

Liczba \, \, moli \, \, Na= \frac{Mass \, of \, Na}{Molowy \, masa \, z \, Na} = \frac{45}{22.989769} = 1.96 \, mole

Z czego 1,96 moli sodu Na reaguje z 1/2 × 1,96 mola chloru gazowego Cl₂ z wytworzeniem 1,96 mola chlorku sodu NaCl

Masa molowa NaCl = 58,44 g / mol

Dlatego masa NaCl = liczba moli NaCl × masa molowa NaCl

Masa NaCl = 1,96 × 58,44 = 114,39001 g ≈ 114,4 g

W związku z tym ilość w gramach chlorku sodu NaCl = 114,4 g.

4 0
2 years ago
1. Land-dwelling creatures depend on the the water cycle to ___________ fresh water from its salt solution in the Earth's oceans
Novosadov [1.4K]
1 is evaporate and 2 is precipitate
3 0
2 years ago
Read 2 more answers
Other questions:
  • In this Punnett square, what is the probability of the offspring being a heterozygous purple flower
    9·1 answer
  • ) How many molecules are in 23 moles of Sodium?
    9·1 answer
  • A sample of carbon monoxide gas has a volume of
    12·1 answer
  • Why is strontium important?
    15·1 answer
  • A baseline for experimental investigation is provided by what?
    8·1 answer
  • Explain how water behaves in this reaction. Which definition of acids and bases would you apply?
    11·2 answers
  • Van der Waals forces can best be described as the attractive or repulsive forces that are formed
    7·2 answers
  • How to tell if my c- r -u -s- h f -o- r t -w -o y -e -a -r-s l-i-k-e-s me or not
    12·2 answers
  • Stop reporting my stuff Ezekiel333
    6·1 answer
  • Calculate the value of K p for the equation C ( s ) + CO 2 ( g ) − ⇀ ↽ − 2 CO ( g ) K p = ? given that at a certain temperature
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!