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
garri49 [273]
3 years ago
15

HELP PLEASE! I WILL GIVE YOU POINTS

Chemistry
2 answers:
scoundrel [369]3 years ago
8 0
A. An Interdependent system of plants, animals, and land
maw [93]3 years ago
7 0
I would say A is the best answer
You might be interested in
What is the pressure in mm hg of a 0.025 mole sample of co2 at 350 k in a 200 l container?
Leni [432]

Answer:

0.65mmHg

Explanation:

Take R =8.314J/mol/K

V=200dm3

PV=nRT

P=0.025×8.314×623/200

=0.65mmHg

7 0
1 year ago
) A children’s liquid cold medicine has a density of 1.23 g/mL. If a child is to take 2.5 tsp in a dose, what is the mass in gra
vekshin1

The relation between density and mass and volume is

Density=\frac{Mass}{volume}

the dose required is 2.5 tsp

each tsp contain 5mL

So dose required in mL = 2.5 X 5 = 12.5 mL

the mass will be calculated using following formula

Mass=DensityXvolume

Mass=1.23\frac{g}{mL}X12.5mL= 15.38g

The mass of dose in grams will be 15.38 g


5 0
3 years ago
When water vapor condenses, how much heat energy will be released into the atmosphere?
Leona [35]
<span><span>When water vapor condenses, 2260 joules/gram heat energy will be released into the atmosphere.

To add, </span>heat energy<span> <span>(or </span>thermal energy<span> or simply </span>heat) is defined as a form of energy<span> which transfers among particles in a substance (or system) by means of kinetic </span>energy<span> of those particles. In other words, under kinetic theory, the </span>heat<span> is transferred by particles bouncing into each other.</span></span></span>
3 0
2 years ago
List the methods of separation used in water purification...... ( HELP PLEASE )
lawyer [7]

Answer:

I can list four. These are the main ones.

Bolling

Filtration

Distillation.  

Chlorination

Explanation:

3 0
3 years ago
what object experiences a frequency equal to its natural frequency _______ is said to have occurred. 1. resonance 2. frequency 3
Talja [164]
Amplitude is the awnser glad I could help you
8 0
2 years ago
Other questions:
  • What is the beta decay of uranium-237
    9·1 answer
  • What is the result of multiplying (2.5 × 1010) × (3.5 × 10-7)?
    6·1 answer
  • Given the chemical formula, how is this substance MOST LIKELY classified? A) atom B) compound C) both atom and compound D) neith
    7·1 answer
  • The air in a hot-air balloon at 763 torr is heated from 14.0°C to 31.0°C. Assuming that the moles of air and the pressure remain
    5·1 answer
  • What was the initial temperature of a gas contained in a 2.0-L bottle at a pressure of 1.00 atm if it was placed under vacuum an
    6·1 answer
  • What can you infer about copper and silver based on the position related to each other on the periodic table
    8·1 answer
  • Phosphorus is most abundant in the
    9·1 answer
  • a student takes three beakers and places 250 ml of water in each. the student then adds a cube of sugar to all three beakers. th
    13·2 answers
  • How many miles can a commercial jetliner flying at 253 meters per second travel in 6.0 hours?
    8·2 answers
  • 1
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!