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
PolarNik [594]
2 years ago
9

Hot air is more / less dense than cooler air. Choose the correct one.

Chemistry
1 answer:
Paha777 [63]2 years ago
4 0

it is less dense then cold

You might be interested in
Is the equation for reaction 1 balanced? Explain your reasoning. If the reaction is not balanced, then state how you would balan
sveticcg [70]

Answer:

Reaction is already balanced

Explanation:

The equation in reaction 1 is given as;

CH3COOH + NaHCO3 --> CO2 + H2O +  Na+   +  CH3COO-

The reaction is already balanced. This is because the umber of atoms of elements in the reactant is equal to that of the products

Carbon

Reactant = 2 + 1 = 3

Product = 2 + 2 = 3

Hydrogen

Reactant = 3 + 1 + 1 = 5

Product = 2 + 3 = 5

Oxygen

Reactant = 2 + 3 = 5

Product = 2 +1 + 2 = 5

Sodium

Reactant = 1

Product = 1

3 0
3 years ago
What is carboxylic acid?​
maksim [4K]

Answer:

Carboxylic acid

A carboxylic acid is an organic acid that contains a carboxyl group attached to an R-group. The general formula of a carboxylic acid is R−COOH or R−CO₂H, with R referring to the alkyl, alkenyl, aryl, or other group. Carboxylic acids occur widely. Important examples include the amino acids and fatty acids.

7 0
3 years ago
Who discovered the electron and what instrument did he use?
Leni [432]

Answer:J.J. Thomson, he was using a high-vacuum cathode-ray tube

Explanation:(I Googled it)

8 0
3 years ago
How many grams (m) of glucose are in 165 ml of a 5.50% (m/v) glucose solution? express your answer numerically in grams?
Leya [2.2K]
     <span> mass of glucose = 0.055 *165 = 9.075 g

vol of methyl alc = 0.185 * 1.87 = 0.346 L = 346 ml

% NaCl ( m/v ) = mass NaCl * 100/ vol of soln

or Vol of Soln = mass NaCl / % NaCl (m/v)

= 32.1 * 100 / 6 = 535 ml the total vol of soln</span>
6 0
4 years ago
Distinguish between atom molecules, and ions
NNADVOKAT [17]

Explanation:

Atoms are the smallest unit of matter that can't be broken down chemically. Molecules are groups of two or more atoms that are chemically bonded. Ions are atoms or molecules that have gained or lost one or more of their valence electrons and therefore have a net positive or negative charge.

7 0
3 years ago
Other questions:
  • What is the GFM of H2O2
    15·1 answer
  • Jeremy left his bike outside overnight. When he woke up in the morning, there were water drops on the seat. When he went to ride
    12·1 answer
  • Test (Speed, Velocity and Acceleration)
    14·1 answer
  • Purification of chromium can be achieved by electrorefining chromium from an impure chromium anode onto a pure chromium cathode
    14·1 answer
  • Balance this equation.<br> CH4 + _O2 --&gt; _CO2 + _H20
    9·1 answer
  • Please Explain the Cell Cycle From 7th grade Iraq science.
    12·1 answer
  • Which ion(s) would bond by electrostatic attraction with an ion of Fluorine?
    7·1 answer
  • What is the energy of an electron in a Li+ ion when an electron moves from n = 2 to n =3?
    12·1 answer
  • Why does sound travel at different speeds through various materials?
    7·2 answers
  • What is the mass in grams of a single atom of Pt?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!