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
lakkis [162]
2 years ago
15

Could a mixture be made up of only elements and no compounds. explain

Chemistry
1 answer:
lbvjy [14]2 years ago
8 0
Yes, because a mixture is 2 or more substances that are mixed together (not chemically). A mixture could be two different elements physically combined in a set ratio.
You might be interested in
What is the velocity of a electron whose wavelength is 100 pm?
Anni [7]

Answer:

v = 7.3 × 10⁶ m/s

Explanation:

Given data:

Velocity of electron = ?

Wavelength = 100 pm

Solution:

Formula:

λ = h/mv

λ = wavelength

h = planck's constant

m = mass

v = velocity

Now we will put the values in formula.

100 ×10⁻¹² m = 6.63 × 10⁻³⁴ j.s / 9.109 × 10⁻³¹ kg ×  v

v = 6.63 × 10⁻³⁴ kg.m²/s /  9.109 × 10⁻³¹ kg ×100 ×10⁻¹² m

v = 6.63 × 10⁻³⁴ m/s /910.9 × 10⁻⁴³

v = 0.0073  × 10⁹ m/s

v = 7.3 × 10⁶ m/s

5 0
3 years ago
How many grams of potassium nitrate (KNO3) are required to prepare 0.250L of a 0.700 M
CaHeK987 [17]

Answer:

17.78g

Explanation:

m/M = C×V

m/101.102= 0.7× 0.25

m= 101.102×0.7×0.25= 17.78g

6 0
3 years ago
The elements lithium and oxygen react explosively to form lithium oxide,Li2O. how many moles of lithium oxide will form if 4.37
anygoal [31]

From the equation,

4 mole of lithium produces 2 mole of lithium oxide

4.37 mol of lithium produces (4.37÷4)x2 mol of lithium oxide

5 0
3 years ago
Any help with any one
victus00 [196]
18 D
19 B
20 D
21 Anabolic steroid abuse can lead to kidney and liver failure, enlarged heart or high blood pressure and changes in blood cholesterol.
8 0
2 years ago
Define aqua regia short answer<br><br><br>boreeeeeee​
larisa [96]

Answer:

Aqua regia is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3. Aqua regia is a yellow-orange fuming liquid, so named by alchemists because it can dissolve the noble metals gold and platinum, though not all metals.

Explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • How does boyle's law relate to breathing?
    6·1 answer
  • Based on your observations in the lab, what do you think happens to the majority of water (not, ice) at the poles? at the equato
    7·1 answer
  • How many atoms of cobalt are in one formula unit of cobalt (III) oxide? one two three six
    15·2 answers
  • Answer question 13. What is the mechanical advantage of a lever that can lift a 100 N load with a input force of 20 N
    5·1 answer
  • In a two-step synthesis, C6H11Br is converted into C6H12O. From the structure of the product, molecular formula of the starting
    6·1 answer
  • Snow and ice absorbs much of the Sun's radiant energy<br><br>True or False?​
    15·1 answer
  • PLEASE HELP WILL GIVE BRAINLIEST
    12·1 answer
  • Please help me with this question it’s due in five minutes I’ll give brainliest
    11·1 answer
  • A light year is a measurement of ___________.<br><br> Which word best completes the sentence?
    8·2 answers
  • What are the compounds empirical and molecular formulas
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!