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
Sever21 [200]
3 years ago
9

What happens when water changes from a solid to a liquid to a vapor

Chemistry
1 answer:
mote1985 [20]3 years ago
3 0

Answer:

It forms a water cycle!

Hope it helps!!!

You might be interested in
The number at the end of an isotope's name is the number
Korolek [52]

Answer:

Atomic neutron mass electron number

Explanation:

7 0
3 years ago
What is the name of this molecule?
Ludmilka [50]
Is there suppose to be a picture? Cause I do t see one
6 0
3 years ago
Aqueous hydrochloric acid (HCl) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium chloride (NaCl) and liquid w
Naddika [18.5K]

Answer:

87.9 % is the percent yield of H₂O

Explanation:

This is the neutralization reaction. A base reacts with an acid to produce water and the correspondly ionic salt.

NaOH  +  HCl  → NaCl +  H₂O

As we have the mass of the two reactants, we must determine the limiting reactant.

Let's convert to moles, the mass of each reactant. (mass / molar mass)

21.1 g / 36.45 g/mol = 0.579 moles of HCl

46.3 g / 40g/mol = 1.15 moles of NaOH

Ratio is 1:1, so it is obviously that the limiting reactant is the HCl. For 1.15 moles of NaOH, i need the same amount of acid, but I only have 0.579 moles

Let's work with the products now. Ratio is 1:1 again, so If I have 0.579 moles of acid, I can produce 0.579 moles of H₂O.

How many grams are 0.579 moles of water? We should find it out as this

mol . molar mass = mass → 0.579 mol . 18 g/mol = 10.4 g

We were told that the production of water was 9.17 g, so let's determine the percent yield as this:

(Yield produced / Theoretical yield) . 100 =

(9.17 g / 10.4g ) . 100 = 87.9 %

6 0
3 years ago
Assume that a daily diet of 2000 calories (i.e. 8.37 x 106 J) is converted completely to body heat.
slava [35]

Answer:

(a) the mass of the water is 3704 g

(b) the mass of the water is 199, 285.7 g

Explanation:

Given;

Quantity of heat, H= 8.37 x 10⁶ J

Part (a) mass of water (as sweat) need to evaporate to cool that person off

Latent heat of vaporization of water, Lvap. = 2.26 x 10⁶ J/kg

H = m x Lvap.

m = \frac{H}{L._{vap}} =\frac{8.37 * 10^6.J}{2.26*10^6\ \frac{J}{kg}} = 3.704 \ kg

mass in gram ⇒ 3.704 kg x 1000g = 3704 g

Part (b) quantity of water raised from 25.0 °C to 35.0 °C by 8.37 x 10⁶ J

specific heat capacity of water, C, 4200 J/kg.°C

H = mcΔθ

where;

Δθ is the change in temperature = 35 - 25 = 10°C

m =\frac{H}{c* \delta \theta} = \frac{8.37 *10^6}{4200*10} = 199.2857 kg

mass in gram ⇒ 199.2857 kg x 1000 g = 199285.7 g

5 0
3 years ago
What two things combine with oxygen to form ground-level ozone?
STALIN [3.7K]

Answer:

c) NOx and VOC

oxides of nitrogen (NOx) and volatile organic compounds (VOC)

Explanation:

-

4 0
3 years ago
Other questions:
  • A student decreases the temperature of 556 cm^3 balloon from 278 K to 231 K. Assuming constant pressure, what should the new vol
    10·1 answer
  • PLEASE HELP ME ASAP!!<br> How many molecules are in 7.5 grams of Oxygen gas?
    9·1 answer
  • Sodium(na) is a highly reactive metal and chlorine is a poisonous gas. Which compound do they form when they chemically combine?
    12·2 answers
  • If methyl orange is added to a substance and it turns the substance red, what does this tell you about the pH of the substance?
    9·2 answers
  • How did lavoisier revolutionize the science in chemistry
    13·1 answer
  • Which piece of technology allowed scientists to look for life on Mars? a telescope a rover a microscope probeware
    10·2 answers
  • What is the pH of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 M? Show your calculation.
    5·1 answer
  • HELPPPPPPPPPPPPOOOooooooo
    6·1 answer
  • Which of the following formulas represents an empirical formula?
    7·1 answer
  • Electronic configurations and charges of the ions<br>in lithium fluoride?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!