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
julsineya [31]
3 years ago
5

Help me with this question?!!

Chemistry
1 answer:
Ne4ueva [31]3 years ago
5 0

Answer:

Glow sticks  and match would be light emission, slime would be preciptate, and cookies would be gas.

Explanation:

You might be interested in
The value of gravitational acceleration of a body on earth is 9.8 meters/second 2 power. The gravitational energy for a 1.00 kg
mamaluj [8]

Answer:

I don't know what the hell is going on with the this.

3 0
2 years ago
How much water. does moss contain
Lady_Fox [76]
Not sure if this answers your question but moss can hold up to 20 times its weight in liquid.
5 0
4 years ago
At room temperature, table salt is a solid and mercury is a liquid. What conclusion can you draw about the melting points of the
Radda [10]
That salt has a higher melting point than mercury.
7 0
3 years ago
Read 2 more answers
Cyanogen is a gas which contains 46.2% C and 53.8% N by mass. At a temperature of 25°C and a pressure of 750 mm Hg, 1.50 g of cy
sergiy2304 [10]

Answer:

Molecular formula of cyanogen is C₂N₂

Explanation:

We apply the ideal gases law to find out the mole of cyanogen

P . V =  n. R. T

Firstly let's convert the pressure in atm, for R

750 mmHg = 0.986 atm

25°C + 273 = 298K

0.986 atm . 0.714L = n . 0.082 L.atm/mol.K .298K

(0.986 atm . 0.714L) / (0.082 L.atm/mol.K .298K) = n

0.0288 mol = n

Molar mass of cyanogen = mass / mol

1.50 g /0.0288 mol = 52.02 g/m

Let's apply the percent, to know the quantity of atoms

100 g of compound contain 46.2 g of C and 53.8 g of N

52.02 g of compound contain:

(52.02 . 46.2) / 100 = 24 g  → 2 atoms of C

(52.02 . 53.8) / 100 = .28 g  →  2 atoms of N

3 0
3 years ago
What describes how much of a substance has been dissolved into another substance and is usually expressed in a ratio or percent?
gregori [183]
<h3>Answer: <u><em>It's A Hope this helps </em></u></h3>

<h3>Explanation: </h3><h3><u><em>Well this answer was a bit tricky well A and B were like the same definition and thinking  A  but C and D were both wrong  </em></u></h3><h3><u><em /></u></h3>
7 0
3 years ago
Other questions:
  • The observation that ethanol (C2H5OH) has a higher vapor pressure than water (H2O) at the same temperature is due to more
    11·1 answer
  • Please help me i keep getting this wrong :(
    11·1 answer
  • Which three main elements make up the structure of organic molecules?
    13·1 answer
  • Match each organ to its function. Tiles bone heart stomach lung Pairs pumps blood through the body Both provides structure for t
    14·2 answers
  • Where in a lake is the benthic zone?
    15·1 answer
  • An icecube floats in water but sinks in gasoline. Moreover, a cork floats on top of both of the water and gasoline. What can you
    14·1 answer
  • If a molecular formula is C8H12O2 , what is the empirical
    10·1 answer
  • Lights give off energy in the form of thermal energy and<br> energy
    6·1 answer
  • Please answer
    9·1 answer
  • Determine the frequency of light with a wavelength of 2.672 x 10^-7cm
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!