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
Paha777 [63]
3 years ago
13

The specific heat of aluminum is 0.897 j/g•°c. which equation would you use to calculate the amount of heat needed to raise the

temperature of 0.75 g of aluminum from 7°c to 29°c?
a. q = 0.75 g x 0.385 j/g•°c x 29°c
b. q = 0.75 g x 0.385 j/g•°c x 22°c
c. q = 0.75 g x 0.897 j/g•°c x 22°c
d. q = 0.75 g x 0.897 j/g•°c x 29°c
Chemistry
1 answer:
Varvara68 [4.7K]3 years ago
7 0
<span>c. q = 0.75 g x 0.897 j/g•°c x 22°c</span>
You might be interested in
Endler's Guppies Experiment on Natural Selection
Morgarella [4.7K]

In conclusion, an experiment about Natural Selection includes mechanisms, explanation, estimation of the frequency of the trait and comparisons.

<h3>What is the scientific method?</h3>

The scientific method is a series of step used to validate evidence and thus formulate theories.

Darwin used the scientific method to draw conclusions about the main mechanism of evolution, i.e., natural selection.

The scientific method involves making a question, providing an explanation of the hypothesis, making observations/experiments (which include experimental and control groups), and drawing conclusions.

The empirical data serve to test a hypothesis (either confirm or reject it) by contrasting its results with predictive outcomes.

The strength of the conclusions can be enhanced by using supporting evidence from other research fields (in this case, for example, the fossil record).

In conclusion, an experiment on Natural Selection includes mechanisms (question), explanation (hypothesis), estimation of the frequency of the trait in the population (prediction) and comparisons (control group).

Learn more about the scientific method here:

brainly.com/question/17216882

#SPJ1

7 0
2 years ago
Calculate the number of moles in 25.0 g of each of the
mamaluj [8]

Answer:

A. 6.25moles

B. 0.78moles

C. 0.32moles

D. 0.15moles

E. 0.43moles

Explanation:

use

  • n = mass/molar mass

A. He

  • 25/4 = 6.25moles

B. O2

  • 25/32 = 0.78moles

C. Al(OH)3

  • 27+ 3(17) = 78
  • 25/78 = 0.32 moles

D. GaS3

  • 70+3(32) = 166
  • 25/166 = 0.15moles

E. C4H10

  • 4(12)+10(1) =58
  • 25/58 = 0.43moles
5 0
3 years ago
How does heat conduction work in the metal brownie pan?
34kurt
The metal conducts the heat and through conduction, cooks the brownies; conduction also cooks the brownies in the glass pan, but since infrared goes right through the glass, they also cook by radiation.
7 0
4 years ago
A can was filled with crushed ice, sealed, and massed. The ice was melted by slowly warming the can and its contents. No water v
Lera25 [3.4K]

Answer:

A) The mass would be the same.

Explanation:

Since there is no loss of any particle to vapor during the phase change process from solid to liquid, the mass of the before and after the process will remain the same.

  • In this way, the law of conservation of mass is obeyed.
  • Mass is the amount of matter contained in a substance.
  • Since there is no room for escape or matter loss, the mass will remain the same.
8 0
3 years ago
Read 2 more answers
If kinetic energy increases does pressure decrease?
enyata [817]

If molecules are in a closed container then we expect the pressure to increase as the kinetic energy increases. This is because the atoms of an element collide with the walls of the container and increase the pressure.

If we use the formula PV=nRT, where P is the pressure, V is the volume, n is the number of moles, R the ideal gas constant and T is the temperature.  According to the formula, P is directly proportional to temperature. An increase in temperature leads to an increase in pressure.

Since we know that temperature is the average kinetic energy of molecules present. It means as we increase the temperature we increase the kinetic energy of the molecules which in turn leads to an increase in the pressure.

8 0
3 years ago
Other questions:
  • What change occurs to food by your teeth as you chew ?
    10·2 answers
  • Use molecular orbital theory to determine whether f22+ is paramagnetic or diamagnetic.
    13·2 answers
  • What is the measure of angle QCR?
    5·2 answers
  • What kind of change is a change in state of matter and why<br> Physical or chemical
    7·1 answer
  • If an atom has 16 protons, 14 neutrons, and 18 electrons. What is the charge of the nucleus?
    7·1 answer
  • What is the balanced chemical equation of CO2 + H2O = C2H5OH + O2?​
    12·1 answer
  • HELP ME ILL MARK BRAINLIESTTTT PLSS ASAP
    6·2 answers
  • Simple land plants lack seeds and
    11·2 answers
  • 4. What energy transformation takes place when you light a match?
    15·1 answer
  • In the balanced molecular equation for the neutralization of sodium hydroxide with sulfuric acid, the products are:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!