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
Alisiya [41]
2 years ago
9

If the initial volume is 55ml and the final volume after some rocks of sandstone are added is 65ml what is the volume of the chi

ps?
Those sandstone chips above have a mass of 2 grams what is the density of the sandstone chips?
Chemistry
1 answer:
AfilCa [17]2 years ago
7 0

Answer:

Volume = 10ml

Density = 1/5 g/ml or 0.20g/ml

Explanation:

The rocks are 10ml since the initial volume went up by 10.

Since density = mass/volume, you divide 2 by 10.

D = 2/10

D = 1/5 g/ml or 0.20g/ml

(Unit is g/ml aka grams/millileter)

You might be interested in
Give the number of significant figures: 0.011 cm
faust18 [17]
It would be only two because you would not count the zeros to the left even if there is a decimal point :)
8 0
3 years ago
Read 2 more answers
Look at the potential energy diagram for a chemical reaction.
vladimir1956 [14]

Answer: The activation energy is 10 kJ and the reaction is exothermic.

Explanation: Exothermic reactions are those in which heat is released and thus the energy of products is less than the energy of reactants.

Endothermic reactions are those in which heat is absorbed and thus the energy of products is more than the energy of reactants.

Activation energy is the extra amount of energy required by the reactants to cross the energy barrier to convert to products.

Given : Energy of reactants = 40kJ

Energy of activation: (50-40)=10 kJ

Energy of products = 50 kJ

Energy of products = 15 kJ

Thus Energy of products (15kJ) < Energy of reactants(40kJ), the reaction is exothermic as energy has been lost to surroundings in the form of heat.

8 0
3 years ago
3. If 90.0 grams of barium chloride react with sulfuric acid, how many
PtichkaEL [24]

Answer:

The answer to your question is 100.8 g

Explanation:

Data

  mass of Barium chloride = 90 g

  mass of Barium sulfate = ?

Balanced chemical reaction

    BaCl₂  +  H₂SO₄   ⇒    BaSO₄  +  2HCl

Process

1.- Calculate the molar mass of BaCl₂ and BaSO₄

BaCl₂ = 137.3 + (2 x 35.5) = 208.3g

BaSO₄ = 137.3 + 32 + (16 x 4) = 233.3g

2.- Use proportions to find the mass of BaSO₄

              208.3 g of BaCl₂ --------------------- 233.3 g of BaSO₄

                90 g of BaCl₂    ---------------------   x

                              x = (90 x 233.3) / 208.3

                              x = 20997/ 208.3

                              x = 100.8 g

3.- Conclusion

There will be produced 100.8 g of BaSO₄          

4 0
3 years ago
What is first and second element of the periodic table?
stira [4]
The elements on the periodic table are listed in increasing atomic number. 

Hydrogen is the first element, and has an A.N. of 1. Also, its very interesting how it doesn't need 8 valence electrons to be stable. 

The second element is Helium, which has an A.N (atomic number) of two. 
7 0
3 years ago
Read 2 more answers
CaCN2 + 3H20 - CaCO3 + 2NH3
ANTONII [103]

Answer:3

Explanation:

6 0
3 years ago
Other questions:
  • To find the number of neutrons in To find the number of neutrons in and <br> you would subtract
    15·1 answer
  • Two liquids that are soluble in each other are said to be____
    14·1 answer
  • Human fat has a density of 0.918 g/cm^3. How much volume (in cm^3) is gained by a person who gains 10.1 lbs of pure fat?
    13·1 answer
  • Why does the person keep moving even though the car stopped??
    9·1 answer
  • What is the hydrogen ion concentration of a substance with a hydroxide ion concentration of 1.07x10-10M?
    8·1 answer
  • Ideas? Please help this is (science) grade 7th flvs WILL GIVE 30 POINTS!!!!!!!
    8·1 answer
  • Is anyone good at 10th grade chemistry ? If so can you help me please
    11·1 answer
  • Are Li, Na and K in the same group
    8·1 answer
  • Suppose you are asked to find the area of a rectangle that is 2.1- cm wide by 5.6- cm long. Your calculator answer would be 11.7
    15·1 answer
  • When do you use the roman numerals when naming ionic compounds
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!