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
vitfil [10]
3 years ago
10

Suggest two reasons why the maximum allowed percentage of carbon monoxide

Chemistry
1 answer:
shusha [124]3 years ago
5 0
Carbon dioxide levels decreased because of processes that included: dissolving in the oceans. use by plants for photosynthesis. formation of fossil fuels as plants died and their carbon compounds became locked up underground.
You might be interested in
What is the difference between applied and pure chemistry?
My name is Ann [436]
I hope this helps.
have a great day.

5 0
3 years ago
Yeast cells thrive on ice cold water *<br> True<br> оо<br> False
NemiM [27]

Answer:

TRUE

Explanation:

7 0
3 years ago
Compare the electronegativity of H and O in the polar covalent bonds of a water
ExtremeBDS [4]

Answer:

The O atom will tend to attract the electrons.

Explanation:

The electronegativity of O (3.5) is much higher than H (2.1), which means it is more likely to attract electrons. The higher the electronegativity, the more attractive.

7 0
3 years ago
A student dissolves of glucose in of a solvent with a density of . The student notices that the volume of the solvent does not c
nikitadnepr [17]

Answer:

0.052 M

0.059 m

Explanation:

There is some missing info. I think this is the complete question.

<em>A student dissolves 4.6 g of glucose in 500 mL of a solvent with a density of 0.87 g/mL. The student notices that the volume of the solvent does not change when the glucose dissolves in it. Calculate the molarity and molality of the student's solution. Round both of your answers to 2 significant digits.</em>

Step 1: Calculate the moles of glucose (solute)

The molar mass of glucose is 180.16 g/mol.

4.6 g × 1 mol/180.16 g = 0.026 mol

Step 2: Calculate the molarity of the solution

0.026 moles of glucose are dissolved in 500 mL (0.500 L) of solution. We will use the definition of molarity.

M = moles of solute / liters of solution

M = 0.026 mol / 0.500 L = 0.052 M

Step 3: Calculate the mass corresponding to 500 mL of the solvent

The solvent has a density of 0.87 g/mL.

500 mL × 0.87 g/mL = 435 g = 0.44 kg

Step 4: Calculate the molality of the solution

We will use the definition of molality.

m = moles of solute / kilograms of solvent

m = 0.026 mol / 0.44 kg = 0.059 m

4 0
3 years ago
In the periodic table, the elements that are adjacent to the "stair step" are called _____. actinide series nonmetals metalloids
yawa3891 [41]

Answer:-

Metalloids

Explanation:-

The stair step line is a line in the periodic table that divides the metals on one side and the non metals on the other side. So the elements which lie on the stair step line must have properties in between those exhibited by the metals and those by the non metals.

Such elements we know are called metalloids. Thus In the periodic table, the elements that are adjacent to the "stair step" are called metalloids.

5 0
3 years ago
Other questions:
  • The empirical formula for two compounds that have very different properties (one tastes very sour and the other very sweet) is c
    12·2 answers
  • What happens to the surface of the moon during a total lunar eclipse, when all of Earth's sunrises and sunsets are projected ont
    5·1 answer
  • Imagine that you're able to fully dissolve a powdered substance in water. what can be said about this creation
    9·1 answer
  • Differentiate between a pure substance and a mixture and provide examples
    12·1 answer
  • Sodium permanganate and iron(III) chloride are both dissolved in a beaker of water. In a double displacement reaction, two new p
    13·1 answer
  • Two friends decide to go to the park and watch a movie on a computer. The computer runs on battery power. What energy transforma
    15·1 answer
  • Definition of deposition in science​
    8·2 answers
  • Calculate the percentage of water in the hydrate manganese (ii) nitrate tetrahydrate
    6·2 answers
  • What is the SI unit for force?
    10·1 answer
  • if 26.8g of copper (ll) chloride are dissolved in sufficient water to make 4.00 L of solution, what is the molarity of the solut
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!