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
Anna007 [38]
3 years ago
10

Please help with my science ?

Chemistry
1 answer:
fredd [130]3 years ago
7 0
Abrasion is the mechanical scraping of a rock surface by friction between rocks and moving particles during their transport by wind,glacier, waves, gravity and running water or erosion.
You might be interested in
Thomas had a volume of 8.5 g of sodium chloride. What is the molar mass.?
alina1380 [7]

Answer:

58.44 g/mol

Explanation:

In this problem, make sure to remember that volume is measured in mL, L or any other units of volume. Remember that g represents grams, and grams is a measure of mass.

However, independent of what mass or what volume we take, molar mass is known to be an intensive property. That is, molar mass doesn't depend on any external conditions or any measurements.

Molar mass solely depends on the chemical structure of a compound and is a constant number at any given conditions.

In this problem, we are given sodium chloride, NaCl. In order to find its molar mass, we need to refer to the periodic table, find the atomic masses of Na and Cl and then add them up to have the molar mass of NaCl:

M_{NaCl} = M_{Na} + M_{Cl} = 22.99 g/mol + 35.453 g/mol = 58.44 g/mol

5 0
3 years ago
According to the kinetic molecular theory of gases, molecules of an ideal gas
Elan Coil [88]
Molecules of an ideal gas is composed of a large number of identical molecules moving in random directions, separated by distances that are large compared with their size.
7 0
3 years ago
Popeye wants to make a dilute spinach solution for Sweetpea's bottle. How much 3.0 M spinach solution should he add to the 500.0
Lynna [10]

Answer : The volume of 3.0 M spinach solution added should be, 50 mL

Explanation :

Formula used :

M_1V_1=M_2V_2

where,

M_1\text{ and }V_1 are the initial molarity and volume of spinach solution.

M_2\text{ and }V_2 are the final molarity and volume of diluted spinach solution.

We are given:

M_1=3.0M\\V_1=?\\M_2=0.30M\\V_2=500.0mL

Now put all the given values in above equation, we get:

3.0M\times V_1=0.30M\times 500.0mL\\\\V_1=50mL

Hence, the volume of 3.0 M spinach solution added should be, 50 mL

8 0
3 years ago
The variables _______ and ________ affect the gravitational force between objects.
anastassius [24]
I think the answer is A
5 0
3 years ago
Read 2 more answers
An element has a half-life of 30 years. if 1.0 mg of this element decays over a period of 90 years, how many mg of this element
labwork [276]

Answer:

144.6

Explanation:

6 0
3 years ago
Other questions:
  • A sample of pure NO2 is heated to 338 ∘C at which temperature it partially dissociates according to the equation 2NO2(g)⇌2NO(g)+
    12·1 answer
  • Is this right?If not what did I do wrong ?
    5·1 answer
  • What processes shape the surface of the land?
    9·2 answers
  • The average atomic mass of all naturally occurring lithium atoms is 6.941 amu. the two isotopes of lithium are lithium-6 and lit
    8·1 answer
  • Using henry's law, calculate the molar concentration of o2 in the surface water of a mountain lake saturated with air at 20 ∘c a
    5·1 answer
  • Determine the molar mass of CuSO4×5H2O
    5·1 answer
  • The complex [Ni(CN)4]2- is diamagnetic and the complex [NiCl4]2- is paramagnetic. What can you conclude about their molecular ge
    15·1 answer
  • It takes 2,500,00 Liters of Helium to fill the Goodyear Blimp. How many moles is this?
    14·1 answer
  • Nitrogen is collected over water until a volume of 2.0 liters had been obtained. The room pressure is 740mm and the temperature
    12·1 answer
  • There are 100 mg of caffeine in a shot of espresso. The chemical formula
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!