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
harina [27]
2 years ago
12

ASAPPP EASY!!!!!!!!!!

Chemistry
1 answer:
zhenek [66]2 years ago
5 0
Did you know conventional argult culture has increased greenhouse gas emissions, soil erosion, water pollution, and threatened humans health. Let’s stop this from harming our environment and take action about this today. Organic farming has a smaller carbon footprint, conserves and builds soil, replenishes natural ecosystems for cleaner water and air, all with a toxic pesticide residues.
You might be interested in
Which indicator most likely suggests that a chemical change is taking place? 1)change in size 2)change of color 3)change of stat
Tresset [83]

Out of the options, the best indicator is a color change since it is the only one that can't really be blamed on a physical change.  you will eventually notice that during qualitative labs and some quantitative labs, usually the thing that you are looking for is either color change or the production of a precipitate to indicate the presence of a chemical reaction  

8 0
3 years ago
Read 2 more answers
Carbon diselenide (CSe2) is a liquid at room temperature. The normal boiling point is 125°C, and the melting point is –45.5°C. C
Tema [17]

Answer:

Explanation:  The strengths of the inter molecular forces varies as follows -

        CO_{2}< CS_{2} < CSe_{2}

The normal boiling point of CSe2 is 125°C and that of CS2 is 116°C, which explains the trend that as we move down the group, the boiling point of e compound increases as the size increases.

This usually happens because larger and heavier atoms have a tendency to exhibit greater inter molecular strengths due to the increase in size . As the size increases, the valence shell electrons move far away from the nucleus, thus has a greater tendency to attract the temporary dipoles.

And larger the inter molecular forces, more tightly the electrons will be held to each other and thus more thermal energy would be required to break the bonds between them.

5 0
3 years ago
How many molecules are there in 4.00 moles of sulfur dioxide?
FinnZ [79.3K]

Explanation:

4 x 6.02 x 10²³ = 2.41 x 10²⁴

5 0
2 years ago
Question 2
QveST [7]
Metals only and ionic
3 0
2 years ago
Read 2 more answers
How many grams of sodium are in 0.820 moles of na2so4?
s344n2d4d5 [400]
<span>the molar mass of a compound is the sum of the products of the atomic masses by the number of atoms of the element.
molar mass of Na</span>₂SO₄<span> is - 142 g/mol.
1 mol of </span>Na₂SO₄<span> has a mass of 142 g.
In 1 mol of </span>Na₂SO₄<span> the mass of Na is 23 g/mol x 2 = 46 g.
                             
Mass of Na in 1 mol of </span>Na₂SO₄ is - 46 g
                           
mass of Na in 0.820 mol of Na₂SO₄ - 46 g /1 mol x 0.820 mol = 37.72 g.
mass of Na is 37.72 g
5 0
3 years ago
Read 2 more answers
Other questions:
  • According to the periodic table, which statement correctly describes the change from a neutral atom of an element to its ion?
    6·2 answers
  • What is the coded properties of liquid solid and gas​
    11·1 answer
  • A projectile is fired with speed v0 at an angle theta from the horizontal from the horizontal as shown in the figure.
    13·1 answer
  • analytical chemists can detect very small amounts of amoin acids , down to 3x10^-21 mol. how many molecules of an amino acid (mr
    5·1 answer
  • Which element has chemical properties that are most similar to potassium?
    11·1 answer
  • Based on the definition of logarithms, what is the difference in hydrogen ion concentration between a substance with a pH of 2 a
    6·2 answers
  • Weathering is a process in the rock cycle. How does weathering contribute to the formation of rocks?
    9·2 answers
  • How does weathering, erosion and deposition shape the Earth and contribute to the rock cycle
    7·1 answer
  • Ralph's friend invited him to attend a hard rock concert. Ralph did not want to go because he assumed other people who attended
    6·2 answers
  • A chemistry student needs 45.0mL of pentane for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the stud
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!