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
kenny6666 [7]
3 years ago
5

If the solid copper starts off at the normal melting temperature of copper and the liquid copper is put into the mold at the cry

stallization point of copper how much heat
Chemistry
1 answer:
Agata [3.3K]3 years ago
3 0
Heat of what? This is an unclear question.
You might be interested in
If the specific heat of a solution is 4.18 J/goC, and you have 296 mL (1.03 g/mL) which increases in temperature by 6.9 degrees,
Sergeu [11.5K]

Answer:

Q = 8.8 kJ

Explanation:

Step 1: Data given

The specific heat of a solution = 4.18 J/g°C

Volume = 296 mL

Density = 1.03 g/mL

The temperature increases with 6.9 °C

Step 2: Calculate the mass of the solution

mass = density * volume

mass = 1.03 g/mL * 296 mL

mass = 304.88 grams

Step 3: Calculate the heat

Q = m*c*ΔT

⇒ with Q = the heat in Joules = TO BE DETERMINED

⇒ with m = the mass of the solution = 304.88 grams

⇒ with c = the specific heat of the solution = 4.18 J/g°C

⇒ with ΔT = the change in temperature = 6.9 °C

Q = 304.88 g * 4.18 J/g°c * 6.9 °C

Q = 8793.3 J = 8.8 kJ

Q = 8.8 kJ

8 0
3 years ago
Is it true or false a population is all of the plants and animals that live within a ecosystem
Mars2501 [29]
The correct answer would have to be true
4 0
3 years ago
Read 2 more answers
Why are changes of state, for example, liquid water changing to steam, not considered to be chemical changes?
GREYUIT [131]

Answer:

A liquid changing to a gas is considered a physical change because it involves a change in one or more physical properties, but no change in the fundamental components that make up the substance.

5 0
3 years ago
Colorea los recuadros que representan la acciones viables para usar racionalmente los recursos y contaminar menos
In-s [12.5K]

Algunas acciones viables para utilizar los recursos ambientales de forma racional y con el objetivo de reducir la contaminación son:

  • Ahorra agua y energía
  • Reducir, reciclar y reutilizar los residuos generados en el hogar.
  • Reducir el uso de vehículos de combustión interna.
  • Usa energías renovables
  • No quemes basura al aire libre
  • No utilices aerosoles ni frigoríficos que dañen la capa de ozono.
<h3 /><h3>¿Qué importancia tiene la sostenibilidad?</h3>

Es fundamental para la preservación y mantenimiento del medio ambiente y la calidad de vida de las generaciones actuales y futuras. El desarrollo de acciones sostenibles promueve la protección del medio ambiente, los ecosistemas y los recursos naturales.

Por lo tanto, todas las personas e instituciones económicas pueden promover la sostenibilidad a través de prácticas fáciles de ejecutar que ayuden a preservar y proteger el medio ambiente.

Encuentre más información sobre sostenibilidad aquí:

brainly.com/question/23701037

7 0
2 years ago
If the mass of the products of a chemical reaction was 100 g, what was
Rzqust [24]
If the mass of all of the products in a chemical reaction is equal to 100g then the mass of the reactants in that same reaction had to have had a mass of 100g this is due to the law of conservation of matter stating matter cannot be created or destroyed in a chemical reaction.
4 0
3 years ago
Other questions:
  • Plz help me and I promise I will make you he brainiest
    8·1 answer
  • What common household element can, over time, reduce airflow, insulate components, reduce heat exchange or even cause the system
    13·2 answers
  • What is common about the elements of a period? Select all that apply. They have the same number of electron energy levels. They
    8·1 answer
  • Is there ANY acid that can destroy resin, if so, what is it?
    7·1 answer
  • if you had to explain to someone the difference between heat and temperature, how could you use one of the following to demonstr
    8·1 answer
  • What makes up an iconic compound ​
    15·2 answers
  • What does the entropy of a reaction describe?
    15·2 answers
  • Which of the following solutions of glucose in water will have the lowest freezing point?
    11·1 answer
  • An exacuted glass vessel weighs 50 g when empty, 148g when filled with an liquid of density o.989/cc and 50.5 g whenfilled with
    5·1 answer
  • Which image represents the step in mitosis when chromosomes condense and spindle fibers form?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!