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
Delvig [45]
3 years ago
7

How much heat is needed to change 5g of ice at 0°C to water at 50°C?

Chemistry
1 answer:
natta225 [31]3 years ago
6 0

Answer:

400cal

Explanation:

Since ice melted at 0 Celesius then the heat gained by ice (latent heat) will melt it so you should substitute in that law

Q=mlf ..where Q is the heat required to convert ice to water , m is the mass of ice and lf is the latent heat of fusion

Q=5∗80=400cal

You might be interested in
An ____,or an element located in group 7A, will form a salt when reacted with a metal atom.
stiv31 [10]

Answer:

B. Halogen

Explanation:

Halogens are the family of chemical elements found in the group VIIA of the periodic table which means they possess seven (7) outer electrons. Some examples of halogens are Fluorine (F), Iodine (I), Bromine (Br), and Chlorine (Cl).

A halogen, or an element located in group 7A, will form a salt when reacted with a metal atom.

For example, when Chlorine reacts with Sodium it would form a salt known as Sodium Chloride.

Na + Cl ----> NaCl

5 0
3 years ago
The half-life of plutonium-238 is 87.7 years.
Margaret [11]

Answer:

263.1 is exactly three half-life, so the remaining portion is (1/2 x 1/2 x 1/2) of the original sample. That's 1/8 which is 12.5%

8 0
3 years ago
Read 2 more answers
2. A sample of gas has a pressure of 195 kPa and a volume of 3.50 L. If the pressure
zhannawk [14.2K]

Answer:

<h2>4.55 L</h2>

Explanation:

The new volume can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we're finding the new volume

V_2 =  \frac{P_1V_1}{P_2}  \\

We have

V_2 =  \frac{195000 \times 3.5}{150000}  =  \frac{682500}{150000}  \\  = 4.55

We have the final answer as

<h3>4.55 L</h3>

Hope this helps you

7 0
3 years ago
the carbon atom which becomes asymmetric when the straight chain form of monosaccharide change into ring form is known as____\
amid [387]

Answer:

CARBOHYDRATES AND CARBOHYDRATE METABOLISM

4 0
2 years ago
A student designs an experiment where he takes a small wood car with 1.0 inch diameter wheels and rolls it down a ramp. The stud
aleksley [76]
The metal car airodinamics with body style and weight increased speed
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is solubility? If a substance completely dissolves in water, does it have high or low solubility?
    10·2 answers
  • What elements can be joined by a covalent bond?
    15·1 answer
  • Your science teacher gives you three liquids to pour into a jar. After pouring all of them into the jar, the liquids layer as se
    7·1 answer
  • Copper will NOT easily form a new substance when in contact with which of the following? moist air nitric acid sulfuric acid car
    13·2 answers
  • . Through what three mechanisms do gamma rays interact with matter?
    7·1 answer
  • The concentrations of Fe and K in a sample of riverwater are 0.0400 mg/kg and 1.30 mg/kg, respectively. Express the concentratio
    11·1 answer
  • Plz someone help me i dont get this and i need to finish this
    5·1 answer
  • A hypothesis is tested by ___.
    9·1 answer
  • Label the picture, please
    13·2 answers
  • A distillation column with a partial reboiler and a total condenser is being used to separate a mixture of benzene, toluene, and
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!