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
Soloha48 [4]
2 years ago
11

Resistance of a material being scratched in known as

Chemistry
2 answers:
Wittaler [7]2 years ago
3 0
Resistance of a material being scratched in known as: Hardness
ddd [48]2 years ago
3 0

Answer:

Hardness

Explanation:

You might be interested in
How many liters of carbon dioxide will be produced when 89.5 L of ethane are burned? (One mole of any gas occupies 22.4 L under
yan [13]

Answer:

179 L of CO2

Explanation:

Given the equation of the reaction;

C2H6(g) + 7/2 O2(g) -------> 2CO2(g) + 3H2O(g)

Now 1 mole of ethane yields 2 moles of CO2 from the balanced reaction equation

1 mole of a gas occupies 22.4 L volume so,

22.4 L of ethane yields 44.8 L of CO2

89.5 L of ethane yields 89.5 * 44.8/22.4 = 179 L of CO2

4 0
2 years ago
Which answer below is not an indication that a chemical reaction has occurred?
ankoles [38]
Only when there is no product that is when a chemical reaction has not occured
4 0
3 years ago
What is the mass of an object that has a density of 0.500 g/cm3 and a volume of 5.00 mL?
attashe74 [19]

Answer:

<h2>The answer is 2.5 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

density = 0.5 g/cm³

1 mL = 1 cm³

5 mL = 5 cm³

volume = 5 cm³

The mass is

mass = 0.5 × 5

We have the final answer as

<h3>2.5 g</h3>

Hope this helps you

4 0
2 years ago
Temperature is inversely related to the average kinetic energy of a gas.
Temka [501]
Incorrect, temperature is directly proportional to the avg. KE of a gas.
6 0
3 years ago
An atom has the following electron configuration 1s2 2s2 2p6 3s2 3p4 . How many valence electrons does this Atom have
yawa3891 [41]

Answer:

6

Explanation:

This atom is sulfur (if the electrons are equal to the protons/not an ion). You can tell the number of valence electrons by looking at the individual shell. The first shell (1s) can only hold 2 electrons. The second shell (2s and 2p) can hold 8 electrons. The third shell (3s and 3p), which is the valence shell, only has 6 out of its possible 8 electrons, so this atom has 6 valence electrons.

6 0
3 years ago
Other questions:
  • Where might life exist in the solar system beyond earth
    7·1 answer
  • How much does a gold bar wiegh and how much is it wotrth
    11·1 answer
  • How would you classify the following events?
    6·1 answer
  • Acid hydrolase, a digestive enzyme, would most likely be found in which organelle?
    12·2 answers
  • Explain why the magnesium can be stretched to form magnesium ribbon...??
    14·1 answer
  • . Calculate the pH and the pOH of each of the following solutions at 25 °C for which the substances ionize completely:
    8·1 answer
  • The bond angles in SCl2 are expected to be Multiple Choice a little more than 109.5°. 109.5°. 120°. a little less than 109.5°. 1
    10·1 answer
  • Which statement accurately describes the reactants of a reaction?
    7·1 answer
  • Question 18
    9·1 answer
  • Write the chemical formula for the ionic compound formed by lithium and fluorine.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!