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
Ostrovityanka [42]
3 years ago
12

What is the transfer of heat by direct contact - occurs when the particles in a material collide with neighboring particles?

Chemistry
1 answer:
nignag [31]3 years ago
8 0

Answer:

Conduction

Explanation:

<h2>Hope I helped you:)</h2>
You might be interested in
What is the solubility of Na2HAsO4 at 60 degrees C
nlexa [21]
C. 65g / 100ml of water
6 0
3 years ago
A plant extract can be obtained with organic solvents such as acetone or ethyl alcohol, and is composed of plant pigments such a
prohojiy [21]

Answer:

Here's what I get  

Explanation:

A plant extract is a mixture because it contains different substances: acetone or ethanol, chlorophylls A and B, carotene and xanthophylls.

It is homogeneous because it is a solution. There is only one phase: the liquid phase. You cannot see the pigments as separate phases.

You can separate the pigments by paper, thin layer, or column chromatography.

Many schools use paper chromatography, because paper is cheap.

As the mixture of pigments follows the solvent up the paper, they separate into different coloured bands according to their attractive forces to the cellulose in the paper.

The chlorophylls are strongly attracted to the paper, so they don't travel very far.

The nonpolar carotene molecules have little attraction to the polar cellulose, so they are carried along by the solvent front.

8 0
3 years ago
Jonathan used the following soil triangle to identify a sample of soil as sandy clay. Which description of soil likely allowed J
Papessa [141]

Answer:

Mostly large grains, with a sticky texture, 55% sand, 40% clay, and 5% silt

Explanation: I took the test, hope it helps.

7 0
2 years ago
A certain first-order reaction has a half-life of 20.0 minutes. How much time is required for this reaction to be 75% complete?
ryzh [129]

Answer:

X = 2

Explanation:

As you know, the rate of a first-order reaction depends linearly on the concentration of a single reactant. The rate of a first-order reaction that takes the form

3 0
3 years ago
1.A telescope is a tool that helps people observe distant objects. In the simplest telescope design, incoming light hits a lens
Dahasolnce [82]

Answer:

it is refraction

Explanation:

7 0
2 years ago
Other questions:
  • Convert 0.37 kilograms to grams.
    8·2 answers
  • Consider the following reaction: 2 H2(g) + 2 NO(g) → 2 H2O(g) + N2(g) If the concentration of NO changed from 0.100 M to 0.025 M
    14·1 answer
  • . What factors should Margaret NOT consider when deciding how much powder to add to her glass of water?
    7·1 answer
  • There are 0.3 moles of xenon gas in a 0.5-liter container at 30 degrees C. What is the pressure exerted by the xenon gas
    15·2 answers
  • Definition of deposition in science​
    8·2 answers
  • Study the electron dot diagrams for lithium, carbon, fluorine, and neon in Figure 6-1. Choose the statement that correctly ident
    7·2 answers
  • PLEASE HELP ASAP!!!!! WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER
    7·2 answers
  • If all the deer disappeared from this community, which change would be most
    10·2 answers
  • Scientists use the chemical and physical properties of matter to differentiate substances. Which of the following is a chemical
    7·2 answers
  • What could have caused the mass to be higher than the initial mass​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!