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
Gnom [1K]
3 years ago
9

Explain and give examples of theories and laws (big bang molecular clock etc.)

Chemistry
1 answer:
bija089 [108]3 years ago
5 0
1. Schrodinger's Cat- A many world's theory that describes quantum coherence and phenomenon. 
2. Newton's 1st Law- says that objects in rest will stay in rest and objects in motion will stay in motion. The most important lesson here is that an object in rest may not be in rest position.
3. Ohms law- says the current passing through an area is directly proportional to the voltage
You might be interested in
A student runs two experiments with a constant-volume "bomb" calorimeter containing 1500.g of water.
muminat

Answer:

See explaination

Explanation:

Please kindly check attachment for the step by step solution of the given problem

3 0
3 years ago
Please help I'm begging you I'll give so much brainliest​
slava [35]
H2O (water) has 2 hydrogen atoms and 1 oxygen atom.
6 0
2 years ago
How many grams of H2O can be made from the combustion of 3.75 liters of C7H14 and an excess of O2 at STP?
Kitty [74]

Answer:

21.10g of H2O

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

2C7H14 + 21O2 —> 14CO2 + 14H2O

From the balanced equation above, 2L of C7H14 produced 14L of H2O.

Therefore, 3.75L of C7H14 will produce = (3.75 x 14)/2 = 26.25L of H2O.

Next, we shall determine the number of mole of H2O that will occupy 26.25L at stp. This is illustrated below:

1 mole of a gas occupy 22.4L at stp

Therefore, Xmol of H2O will occupy

26.25L i.e

Xmol of H2O = 26.25/22.4

Xmol of H2O = 1.172 mole

Therefore, 1.172 mole of H2O is produced from the reaction.

Next, we shall convert 1.172 mole of H2O to grams. This is illustrated below:

Number of mole H2O = 1.172 mole

Molar mass of H2O = (2x1) + 16 = 18g/mol

Mass of H2O =..?

Mass = mole x molar mass

Mass of H2O = 1.172 x 18

Mass of H2O = 21.10g

Therefore, 21.10g of H2O is produced from the reaction.

3 0
3 years ago
If you know the mass of an object you can calculate its weight with the formula
Vikki [24]
Answer: True

The formula of weight is w = mg, where m is the mass and g is the acceleration of gravity. If you want to calculate an object's weight, you need to know the two components: mass and gravity. 

You only need to know the mass of the object because the acceleration of gravity is ALWAYS (assuming the object is on Earth) 9.8 m/s^2. 
3 0
2 years ago
Calculate the mass of 488 moles of calcium carbonate
san4es73 [151]

Answer: 48800g

Explanation:

Using the mathematical relation : Moles = Mass / Molar Mass

Moles = 488

Molar mass of CaCO3 = 40 + 12 + (16 x 3) = 100g/mol

Therefore

488 = mass / 100 = 48800g

6 0
2 years ago
Other questions:
  • What volume (mL) of 0.135 M NaOH is required to neutralize 13.7 mL of 0.129 M HCl? a: 0.24 b: 13.1 c: 0.076 d: 6.55 e: 14.3
    14·1 answer
  • How many significant figures are in 0.723 m
    15·1 answer
  • You decide to establish a new temperature scale on which the melting point of ammonia (-77.75 ∘c) is 0∘a, and the boiling point
    11·2 answers
  • Help;;;;;;;;;;;;;;;;;)
    6·2 answers
  • How can some of the difficulties caused by the Down Syndrome be over come?
    11·1 answer
  • How many moles are in 17.2g k2s
    14·1 answer
  • The average American is looking at their phone for 6.25 hours a day. How many hours will the average American spend on their pho
    14·1 answer
  • Why metals are good conductor of electricity​
    14·2 answers
  • Substances have more kinetic energy in the _______ state than in the _______ state.
    13·1 answer
  • Answers for Chemistry A/Honors Chem A Unit 2 Test
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!