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
Anna007 [38]
3 years ago
7

true or false, Discovering which of two materials can scratch the other is a way to compare the hardness of the materials

Chemistry
2 answers:
Shkiper50 [21]3 years ago
7 0
True, the hardness of all materials in relative <span />
Anton [14]3 years ago
7 0
This answer is true :) 
You might be interested in
If I have a 50 liter container that holds 45 moles of gas at a temperature of 200 0C, what is the pressure inside the container?
Bezzdna [24]

hdhjdbdhjssnmsmsnsjsbxbhow?

8 0
3 years ago
Convert 3,526 meters (m) into kilometers (km). (Don't forget units)<br> EN<br> Voranean
Nina [5.8K]

Answer:

3,526 meters (m) into kilometers (km) = 0.003526 kilometers

Explanation:

6 0
2 years ago
Phosphine, PH3(g), decomposes according to the equation 4PH3(g) --&gt; P4(g) + 6H2(g) The kinetics of the decomposition of phosp
TEA [102]

good luck with that. I thought I had it, but it was not right.

3 0
3 years ago
Read 2 more answers
The light reactions of photosynthesis use _____ and produce _____. The light reactions of photosynthesis use _____ and produce _
SashulF [63]
<h2>Input = NADP^+, water and Output = NADPH + O_2</h2>

Explanation:

The light reactions of photosynthesis use water and produce Oxygen, NADPH.

The equation for photosynthesis :

6 CO_2 + 6 H_2O → C_6H_12O_6 + 6 O_2

The process of photosynthesis in two stages -

  • The first stage is called the light reaction in which the light energy from the sun is captured and converted into chemical energy stored in the form of ATP and NADPH
  • The second stage is the process of conversion of ATP molecules to sugar or glucose (the Calvin Cycle)

For a light reaction -

Net Input is of, NADP^+, Light, Water, ADP

Net Output is of, ATP, NADPH, O_2

8 0
3 years ago
Write balanced equations for each of the following by inserting the correct coefficients in the blanks:
Aleksandr-060686 [28]

Balanced equation :

Cu(NO₃)₂(aq) + 2KOH(aq) → Cu(OH)₂(s)  + 2KNO₃(aq)

Balancing a chemical equation :

A chemical equation shows us the substances involved in a chemical reaction - the substances that react (reactants) and the substances that are produced (products). In general, a chemical equation looks like this:

                                 Reactant →Product

According to the law of conservation of mass, when a chemical reaction occurs, the mass of the products should be equal to the mass of the reactants. Therefore, the amount of the atoms in each element does not change in the chemical reaction. As a result, the chemical equation that shows the chemical reaction needs to be balanced. A balanced chemical equation occurs when the number of the atoms involved in the reactants side is equal to the number of atoms in the products side.

Learn more about balanced equation :

brainly.com/question/15355912

#SPJ4

3 0
2 years ago
Other questions:
  • When 92.0 g of ethanol (c2h5oh are vaporized at its boiling point of 78.3°c, it requires 78.6 kj of energy. what is the approxim
    15·2 answers
  • 2 Points<br><br> Which of these is a benefit of using cotton grocery bags?
    11·1 answer
  • Calculate the number of moles of Californium represented by 5.92 x 1024 atoms of Californium. Enter your answer in the provided
    9·1 answer
  • Who made the periodic table
    5·2 answers
  • An automobile gasoline tank holds 42 kg of gasoline. When the gasoline burns, 168 kg of oxygen are consumed and carbon dioxide a
    14·1 answer
  • A 6.175 gram sample of an organic compound containing only C, H, and O is analyzed by combustion analysis and 13.30 g CO2 and 5.
    14·1 answer
  • What is the fancy psychological term for "mental process"?
    7·1 answer
  • How have organisms changed over time, according to the fossil record?​
    12·1 answer
  • 1.a)How many types of particles are formed when a strong alkali is dissolved in water??
    10·1 answer
  • A sample of 85.5 g of tetraphosphorous decoxide (P4O10) reacts with 74.9 g of water to produce phosphoric acid (H3PO4) according
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!