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
Ann [662]
2 years ago
7

What are the benefits and drawbacks to having a pouring temperature that is much higher than the metal’s melting temperature?

Chemistry
1 answer:
Mashcka [7]2 years ago
3 0

Answer:

The main advantage would be that with the pouring temperature being much higher, there is very little chance that the metal will solidify in the mould while busy pouring. This will allow for moulds that are quite intricate to still be fully filled. The drawbacks, though, include an increased chance defects forming which relates to shrinkage (cold shots, shrinkage pores, etc). Another drawback includes entrained air being present, due to the viscosity of the metal being low because of the high pouring temperature.

You might be interested in
What can scientists measure to provide evidence that electrons can move from one energy level to another
andrey2020 [161]

Answer:

recording the wavelength of light

Explanation:

When an appropriate measure of energy say in the form of light of a certain wavelength, is supplied, electrons have a tendency to absorb the energy and get excited to a higher energy level. Conversely, if an electron is already at a higher energy state it will emit energy in the form of light (or heat) and return to a more stable lower energy state.

8 0
3 years ago
Choose all the right answers. The four major type of animal tissue are: A.cytoplasmic B.support C.connective D.epithelial E.musc
FromTheMoon [43]

Answer: 1. Connective Tissue 2.)Epithelial Tissue 3.)Muscle Tissue 4.)Nervous Tissue

Explanation:

8 0
2 years ago
Please help! I put all my points into this question, brainliest, thanks, rattings, etc.
kkurt [141]

A higher concentration of reactants leads to more collisions per unit time and leads to an increasing reaction rate. Changing the pressure of gaseous reactants is, in effect, changing their concentration. The increased number of collisions caused by a higher pressure generally increases the reaction rate.


8 0
3 years ago
What are the values of the solute amount in moles and the solution volume in liters.
worty [1.4K]

Answer:

0.250L of solution. 0.250 moles of solute.

Explanation:

As you can see in the image, there is a beaker with an amount of solution. 1/2L are 500mL and each line of the beaker represents 100mL. That means the volume of the solution is approximately 250mL = 0.250L

Molarity is an unit of concentration defined as the moles of solute per liter of solution. A solution that is 1.000M contains 1.000 moles of solute per liter of solution.

As the volume of the solution is 0.250L, the moles are:

0.250L * (1.000mol/L) = 0.250 moles of solute

3 0
2 years ago
Help plz! What chemical makes an object give off light?
BARSIC [14]

Answer:

Its Chemiluminescence makes things glow by creating a chemical reaction.The electrons within the object become excited because of the reaction between two chemicals, and the electrons give off energy by blowing.

Maybe this helps I'm sorry if I got your answer wrong..

6 0
3 years ago
Other questions:
  • How many total atoms are in 0.290 g of P2O5?
    9·1 answer
  • Scenario
    8·1 answer
  • The law of conservation of matter states that matter cannot be created or destroyed. This law applies when a chemical change occ
    7·1 answer
  • Determine the number of bonding electrons and the number of nonbonding electrons in the structure of SeCl2.
    10·1 answer
  • What is the theoretical yield of aluminum that can be produced by the reaction of 60.0 g of aluminum oxide with 30.0 g of carbon
    12·1 answer
  • Which pair of elements are the most similar? A. Ca and F B. Na and Cl C. Ne and Ar D. K and Ca
    6·1 answer
  • How do cells get ATP, the energy currency that does work in living things?
    11·1 answer
  • What is the edge length of a 369-g iron cube?(The density of iron is 7.86 g/cm3, and the volume of a cube is equal to the edge l
    10·1 answer
  • Hazardous materials are grouped into classes identifying their.
    14·1 answer
  • What is one disadvantage of using fossil fuels?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!