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
Mademuasel [1]
3 years ago
10

A geologist working in a national park finds a mineral. He is carrying a kit that contains a penny, a hand lens, a piece of tile

, a geologic hammer, and a pocketknife, describe how the geologist can use items to determine some of the mineral's characteristics
Chemistry
1 answer:
Verizon [17]3 years ago
6 0
A penny for the scratch test (low hardness)a hand lens for inspection a peice of tile for a streak test a geologic hammer to test for cleavage of fracture and the pocket knife for the scratch test (high hardness)
You might be interested in
what happens to the water level of water when you heat it and then set it aside for it to cool? what will happen THIS IS URGENT
IceJOKER [234]
Well it depends on how long you let it boil, if it boils for a long time then the water levels will slowly decrease, if u let it sit for a while you can drink it.
6 0
2 years ago
Carbon dioxide is treated with coke.​
Troyanec [42]
It reacts with it and creates carbon monoxide and the affects of it weakens
7 0
2 years ago
How many atoms are in 1.6g C? Answer in units of atoms. <br><br> (no answer choices were given)
maksim [4K]

Answer:

6.022  ×10(index 23) / 7.5 = 0.8293 ×10(index 23)

Explanation:

molar mass of C =  12gmol

therefore in 12g of C there is one mole or an amount of 6.022 ×10(index 23)

∴12g/6.02210(index 23) ×1.6g

3 0
2 years ago
A sample of nitrogen gas is at a temperature of 50 c and a pressure of 2 atm. If the volume of the sample remains constant and t
Lilit [14]

Answer:

The new temperature of the nitrogen gas is 516.8 K or 243.8 C.

Explanation:

Gay-Lussac's law indicates that, as long as the volume of the container containing the gas is constant, as the temperature increases, the gas molecules move faster. Then the number of collisions with the walls increases, that is, the pressure increases. That is, the pressure of the gas is directly proportional to its temperature.

Gay-Lussac's law can be expressed mathematically as follows:

\frac{P}{T} =k

Where P = pressure, T = temperature, K = Constant

You want to study two different states, an initial state and a final state. You have a gas that is at a pressure P1 and at a temperature T1 at the beginning of the experiment. By varying the temperature to a new value T2, then the pressure will change to P2, and the following will be fulfilled:

\frac{P1}{T1} =\frac{P2}{T2}

In this case:

  • P1= 2 atm
  • T1= 50 C= 323 K (being 0 C= 273 K)
  • P2= 3.2 atm
  • T2= ?

Replacing:

\frac{2 atm}{323 K} =\frac{3.2 atm}{T2}

Solving:

T2*\frac{2 atm}{323 K} =3.2 atm

T2=3.2 atm*\frac{323 K}{2 atm}

T2= 516.8 K= 243.8 C

<u><em>The new temperature of the nitrogen gas is 516.8 K or 243.8 C.</em></u>

5 0
3 years ago
A student listed the characteristics of chemical and nuclear reactions.
lidiya [134]

Answer:

D. It is a chemical reaction because the total mass remains the same when new substances are formed.

Explanation:

A chemical reaction is represented by a chemical equation which show the reactant and products. Reactants are written on left side of arrow while products are written on right side. The number of atoms are remain same however arrangement of atoms is different on both side.

For example:

6H₂O + 6CO₂ + energy  →   C₆H₁₂O₆ + 6O₂

it is known from balanced chemical equation that 6 moles of carbon dioxide react with the six moles of water and created one mole of glucose and six mole of oxygen. The number of atoms are same on both side however arrangement of atoms is different.

While in case of nuclear reaction small change in mass take place.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Not only does Snape need to teach his students about hydration states, but also naming hydrates. What is the correct formula for
    11·1 answer
  • Which of the following objects has the greatest kinetic energy?
    6·1 answer
  • Calculate the vapor pressure of a solution containing 25.2 gg of glycerin (C3H8O3)(C3H8O3) in 124 mLmL of water at 30.0 ∘C∘C. Th
    6·1 answer
  • What happens to the average kinetic energy of gas particles as the temperature increases?
    13·1 answer
  • mol of is added to of a solution. acids: bases: other: mol of is added to of a solution that is in both and acids: bases: other:
    7·1 answer
  • Use Lewis diagrams to show how electrons are shared to form covalent bonds in compounds wit the following atoms. Write the formu
    6·1 answer
  • Using the periodic table as a reference, which elements could bond to form a compound most like NaCl?
    11·1 answer
  • Hey! Could someone help? *spam answers not tolerated*
    13·2 answers
  • What is the hydrogen ion concentration of oven cleaner?
    14·1 answer
  • In the following reaction, how many liters of oxygen will react with 270 liters of ethene (C2H4) at STP?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!