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
gtnhenbr [62]
3 years ago
9

A small windmill is to be built at a science competition. A large floor fan is used to power each windmill The task

Chemistry
1 answer:
fredd [130]3 years ago
7 0

Answer:

D

Explanation:

I'm doing USA test prep and I got it right

You might be interested in
The oxidation # (charge) of an element called "lindenium "Ld is + 1 and the oxidation # (charge) of an element called "mendezine
butalik [34]

Answer:

Ld₂Mz

General Formulas and Concepts:

<u>Chemistry - Compounds</u>

  • Valence shells
  • Writing chemical compounds
  • Balancing charges

Explanation:

<u>Step 1: Define</u>

"Lindenium" Ld w/ oxidation charge of +1

"Mendezine" Mz w/ oxidation charge of -2

<u>Step 2: Write Compound</u>

To balance out the charges to be neutral (0), we must counter balance the amount of Ld's with Mz's. We need 2 Ld's with 1 Mz to create a compound with a neutral charge:

2Ld¹⁺ + Mz²⁻

2(+1) + (-2) = (+2) + (-2) = 0 (neutral charge)

Therefore, our compound must be Ld₂Mz.

7 0
3 years ago
Which of the following provides the most evidence for the theory of plate tectonics? A. the spreading of the sea floor B. the co
malfutka [58]

Answer: the correct answer is a.

Explanation: a spreading of the sea floor is the correct answer.

3 0
3 years ago
This is a measure of mass per unit volume.
il63 [147K]

Answer:

Density

Explanation:

Density is defined as the mass per unit volume. It is the ratio between the mass and the volume of a substance. It does not matter how large or small a sample of matter is, the same substance will always have the same density, because of this. The ratio between the mass and volume remains the same.

8 0
3 years ago
What particles make up the nucleus
Komok [63]
DNA
Nucleoulos
Nuclear Membrane
4 0
4 years ago
Read 2 more answers
PH Range of 7.1-14<br> Is that acid or a base?
Taya2010 [7]

Answer:

pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.

Explanation:

3 0
3 years ago
Other questions:
  • Does all matter have chemical energy?
    7·1 answer
  • How have chemists helped fight leukemia?
    5·2 answers
  • The table shows the thermodynamic data for a reaction. Thermodynamic Data Energy of the Reactants Energy of the Products Activat
    9·2 answers
  • At which New York State location can intensely metamorphosed surface
    9·2 answers
  • Balance Na20+H20--&gt; NaOH
    5·1 answer
  • Name two elements in the modern periodic table that break Mendeléey's rule that the elements should be arranged in order of rela
    13·1 answer
  • What is the mass of 3.50 moles of Ba(NO2)2?
    8·1 answer
  • Atoms with the same element with the same atomic number and different electrons are called ?
    12·1 answer
  • Write out the word equation for Mg + HCL -&gt; MgCl2 + H2
    9·1 answer
  • 2. Which principle of green chemistry is illustrated by the following scenario?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!