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
Ivanshal [37]
3 years ago
14

I need halp with this one

Chemistry
1 answer:
Travka [436]3 years ago
8 0

Pangea was formed in the Paleozoic Era

You might be interested in
Generally the ionization potential in a period increases, but there are some exceptions. The one which is not an exception is
Sunny_sXe [5.5K]

Answer:

Generally, the first ionisation energy increases along a period. But there are some exceptions one which is not an exception

4 0
3 years ago
To make 340mL of a 0.4 M solution of Lici, how many mL of a 8 M solution should be used?
ioda

Answer:

Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance (solid, liquid, gas, or plasma) or shape occupies or contains. Volume is often quantified numerically using the SI derived unit, the cubic metre.

Explanation:

3 0
3 years ago
if the lightbulb receives 100 J of electrical energy, and gives off 75 energy, how much heat (thermal energy away from the light
oksano4ka [1.4K]

Answer:

Amount of heat energy released by light bulb = 25 joules

Explanation:

Given:

Energy receive by light bulb = 100 Joules

Energy released by light bulb as light energy = 75 Joules

Find:

Amount of heat energy released by light bulb

Computation:

We know that, energy is neither be created nor destroys

So,

Using Law of conservation of energy

Energy receive by light bulb = Energy released by light bulb as light energy + Amount of heat energy released by light bulb

100 = 75 + Amount of heat energy released by light bulb

Amount of heat energy released by light bulb = 100 - 75

Amount of heat energy released by light bulb = 25 joules

8 0
3 years ago
Question 1 (2 points)
bogdanovich [222]

Answer:

3.75 L

Explanation:

We can solve this problem by using <em>Charles' law</em>, which states:

  • V₁T₂=V₂T₁

Where subscript 1 stands for initial volume and temperature and subscript 2 for final volume and temperature, meaning that in this case:

  • V₁ = 2.5 L
  • T₂ = 300 K
  • V₂ = ?
  • T₁ = 200 K

We <u>input the data</u>:

  • 2.5 L * 300 K = V₂ * 200 K

And <u>solve for V₂</u>:

  • V₂ =  3.75 L
5 0
3 years ago
What is the mole fraction of ethanol in a mixture of 0.25 mol of ethanol and 0.4 mol of methanol? Report your answer to the hund
snow_tiger [21]

Answer:

0.3846

Explanation:

i used fractions

6 0
3 years ago
Other questions:
  • Types of matter flowchart
    10·1 answer
  • why does every human measurement have uncertainty associated with it? Why must we manage the uncertainty during calculations?
    13·1 answer
  • Water is a polar molecule, meaning the electrons that are shared between the atoms aren't shared equally so oxygen attracts more
    14·1 answer
  • A hydrate is determined to be 45.43% water and 54.57% CoCl. Find the chemical formula and name
    10·1 answer
  • What changes as you descend through the water column
    15·1 answer
  • Atomic radius of bromine
    10·2 answers
  • Look at the diagram below.
    14·2 answers
  • Compare and contrast protons, neutrons, and electrons, nucleus, electron cloud and include definition charge and position in the
    6·1 answer
  • Geologists use the decay of potassium-40 in volcanic rocks to determine their age. Potassium-40 has a half-life of 1.26 109 year
    5·1 answer
  • What substance is most soluable at 0°C​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!