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
NISA [10]
3 years ago
11

PLEASE HELP THIS IS IMPORTANT. Answer the ones u know leave the ones u don’t. Be specific too and I’ll give u a brainlist/5 star

!!!
1) you would have noticed water vapour forming on the inside of the glass jar, where did this water come from?

hint: Think about what happens in a combustion in a combustion reaction.


2) explain why the water rises in the glass jar?
Chemistry
1 answer:
LekaFEV [45]3 years ago
5 0

Answer:

1) Condensation.

2) See below.

Explanation:

1) The warmer water vapour from the surroundings came into contact with the cooler inner surface of the glass jar and condensed, forming the water droplets (water vapour) on the inside of the glass jar.

2) As condensation occurs, condensed water vapour will drip into the water solution in the glass jar, causing the water to rise in the glass jar.

You might be interested in
Determine whether the following reaction is a Lewis acid/base reaction and if so, what is the Lewis acid: Fe3+(aq) + 6 CN−(aq) →
Aleonysh [2.5K]

Answer: It is a Lewis acid/base reaction, and Fe^{3+} is the Lewis acid.

Explanation:

According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.

Fe^{3+} can readily accept electrons and thus act as a lewis acid which is short of electrons.

CN^- can readily lose electrons and thus act as a lewis base which has excess of electrons.

It is a Lewis acid/base reaction, and Fe^{3+} is the Lewis acid.

4 0
4 years ago
What is the percentage of water in the hydrate CoCl2 • 6H2O? Show your work.
Lelu [443]
Hello!

First you have to find the molar mass of the molecules

C = 12
O = 16
2Cl = 71
6H2O = 108

Add them up to find the total molar mass

12 + 16 + 71 + 108 = 207g/mol

Divide the amount of water by the total molar mass

108 / 207 = 0.5217

Convert this to a decimal

0.5217 = 52.17%

The answer is 52.17%

Hope this helps!
7 0
4 years ago
3. Joey pushes on a box with 15N of force to the left, and Annie pushes on the box with 18N of force to
mart [117]

Answer:

3N, Right

Explanation:

7 0
3 years ago
_H2 SiCl2 + _H2O −−→ _H8 Si4O4 + _HCl
Serjik [45]

Answer:

A

Explanation:

pls mark brainliest right

6 0
3 years ago
Which of the following is characteristic of non-metals?
IgorC [24]

Answer:

B

Explanation:

Non metals do not conduct electricity

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which element has the lowest atomic mass?
    8·2 answers
  • Neutron breaks down to form a _____
    7·1 answer
  • What is the center of a plant cell? The actual question is what’s the center of an onions root tip?
    5·2 answers
  • Which of the following is an output of photosynthesis?
    11·1 answer
  • he equation represents the combustion of sucrose. C12H22O11 + 12O2 12CO2 + 11H2O If there are 10.0 g of sucrose and 8.0 g of oxy
    15·1 answer
  • Which term matches the definition: the ability of an element to attract electrons within a covalent bond?
    6·1 answer
  • 125 cm3 of a solution contains 0.25 moles of the solute. What is the concentration of the solution?
    7·1 answer
  • How many moles are in 54 grams of C?
    10·1 answer
  • If 240.0 g NaOH reacts, how many grams of Cu(OH)2 should precipitate out in the reaction? Show work
    15·1 answer
  • What is the formula for diblackur triorangide?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!