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
kkurt [141]
2 years ago
6

50 points!!! Please help me

Chemistry
1 answer:
oee [108]2 years ago
5 0
30. mixture of compounds
31. compound
32. element
33. compound
34. compound
34. mixture of elements and compounds
You might be interested in
Determine the mass of water in kg, if 4300 cal of energy is placed in water, resulting in a temperature change to 101.0 oC from
Airida [17]

Answer:

0.5059kg

Explanation:

The heat absorbed for the water is determined using the equation:7

Q = C×m×ΔT

<em>Where Q is heat absorbed (4300cal)</em>

<em>C is specific heat (1cal/g°C)</em>

<em>m is the mass in grams</em>

<em>ΔT is change in °C (101.0°C - 92.5°C = 8.5°C)</em>

<em />

Replacing:

4300cal = 1cal/g°C×m×8.5°C

505.9g = m

In kg, the mass of water is:

<h3>0.5059kg</h3>

<em />

6 0
3 years ago
What is the wavelength of the matter wave associated with an electron (me= 9.1 x 10-31 kg) moving with a speed of 2.5 x 107 m/s?
riadik2000 [5.3K]
And h value is constant 6.624 x 10^-34

3 0
3 years ago
What is plasma in chemistry​
faltersainse [42]

Explanation:

Plasma is an ionized gas, a distinct fourth state of matter. “Ionized” means that at least one electron is not bound to an atom or molecule, converting the atoms or molecules into positively charged ions.but plasma is present in human body too in a liquid form.

hope this helps you

have a nice day

8 0
2 years ago
A drop of liquid tends to have a spherical shape due to the property of 1. viscosity. 2. capillary action. 3. surface tension. 4
posledela

Answer:

surface tension.

Explanation:

3 0
3 years ago
He substance, cocl2, is useful as a humidity indicator because it changes from pale blue to pink as it gains water from moist ai
Anettt [7]

Answer:

Cobalt chloride

Explanation:

It is a molecule formed of one Cobalt atom, and two Chlorine atoms.

5 0
3 years ago
Other questions:
  • Please help
    12·1 answer
  • WILL MARK BRAINLIEST AND THANK YOU!! PLEASE HELP!!!
    11·1 answer
  • PLEASE HELP ASAP 50 POINTS!!!
    7·2 answers
  • Question 4
    6·1 answer
  • What is the ending substance of? <br><br> C + H2O → CO + H2
    11·2 answers
  • Which reagent is the limiting reactant when 0.400 mol Al(OH)3 and 0.400 mol H2SO4 are allowed to react
    9·1 answer
  • MAJOR, PLEASE HELP, BRAINEST IF CORRECT
    5·1 answer
  • Las prótesis, válvulas del corazón, marca pasos, clavos en problemas de huesos quebrados, son productos que evolucionaron en mat
    13·1 answer
  • 2) Phenolphthalein (C20H1404) is a dye very commonly used as indicator in acid-base titrations. The simplified
    15·1 answer
  • Explain why Mineral water is a mixture
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!