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
Snowcat [4.5K]
3 years ago
8

There are three states of matter: solid, liquid, and gas. is this true or false

Chemistry
1 answer:
WINSTONCH [101]3 years ago
7 0

Answer:

true

Explanation:

Solid, liquid and gases are the only three States of matter

You might be interested in
On the pH scale, a 7 indicates _____.<br> a base<br> an acid<br> neutrality
worty [1.4K]

The correct answer is:

neutrality

on the pH scale 7 is neutral above 7 is basic and below 7 is acidic.

Explanation:

The pH is an example of how acidic/basic water is. The scale goes from 0 - 14, with 7 being neutral, pH of less than 7 designates acidity, whereas a pH of greater than 7 intimates a base. pH is really a pattern of the relative amount of free hydrogen and hydroxyl ions in the water.pH is a measure of how acidic/basic water is.

It is neutral because, at this pH, the molar concentrations of Hydroxide and Hydronium are same, therefore the substance is not a base nor an acid.

3 0
3 years ago
+ H20
Salsk061 [2.6K]

a. 2Na Al 03

Equation must have the same number of each element on both sides of the equation.

7 0
3 years ago
A sample of glucose ( C6H12O6 ) of mass 8.44 grams is dissolved in 2.11 kg water. What is the freezing point of this solution? T
taurus [48]

Answer:

<em>- 0.0413°C ≅ - 0.041°C (nearest thousands).</em>

Explanation:

  • Adding solute to water causes the depression of the freezing point.

  • We have the relation:

<em>ΔTf = Kf.m,</em>

Where,

ΔTf is the change in the freezing point.

Kf is the freezing point depression constant (Kf = 1.86 °C/m).

m is the molality of the solution.

<em>Molality is the no. of moles of solute per kg of the solution.</em>

  • <em>no. of moles of solute (glucose) = mass/molar mass</em> = (8.44 g)/(180.156 g/mol) = <em>0.04685 mol.</em>

<em>∴ molality (m) = no. of moles of solute/kg of solvent</em> = (0.04685 mol)/(2.11 kg) = <em>0.0222 m.</em>

∴ ΔTf = Kf.m = (1.86 °C/m)(0.0222 m) = 0.0413°C.

<em>∴ The freezing point of the solution = the freezing point of water - ΔTf </em>= 0.0°C - 0.0413°C = <em>- 0.0413°C ≅ - 0.041°C (nearest thousands).</em>

6 0
3 years ago
Which feature do you usually see when tectonics plates move apart?
exis [7]
A. new ocean ridges and seafloor 
5 0
2 years ago
Select The on that most applys<br><br><br> Will mark brainliest
sdas [7]

Answer:

A and C

Explanation:

7 0
3 years ago
Other questions:
  • Which of these would DECREASE the solubility of a solid in water?
    7·1 answer
  • In a rate law, the rate constant, k, depends on which condition
    12·1 answer
  • How many H atoms are in 6.43g x 10^24 molecules of water
    13·1 answer
  • Weight measures (2 points) how dense an object is. how large an object is. the amount of mass in an object. the effect of gravit
    10·1 answer
  • Utherford proposed that atoms have positive nuclei which statement correctly describes the nucleus of an atom?
    5·1 answer
  • The atomic number for iodine? 1/53. 2/10. 3/13. 4/16
    13·1 answer
  • Two students prepared aqueous solutions of LiCl and measured the properties, as shown in the table above. Both students observed
    14·1 answer
  • A compound formed with potassium and bromine that can detect blood in a stain by reacting with it to form distinctive crystals
    6·1 answer
  • Some students observe four different lab investigations. The students record their observations in a table.
    13·2 answers
  • What does volatility refer to? O A. The tendency of liquids to boil OB. The tendency of liquids to form vapors O C. The tendency
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!