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
Dimas [21]
2 years ago
11

1. How does the field of science gain knowledge and understanding?(1 point)

Chemistry
1 answer:
goblinko [34]2 years ago
8 0

Answer: good luck with that F

Explanation:

You might be interested in
Water can be formed from the synthesis reaction of hydrogen with oxygen<br><br> PLEASE HELP
Anestetic [448]

Answer:

1.4 mols

4th answer

Explanation:

22. 5 g of O2 in moles = (22.5/32) mols = 0.703 mol

The stoichiometry between O2 and H2O =1: 2

Therefore H2O produced = 2 * 0.703 mols=1.406 mols

8 0
3 years ago
True or False: A theory is something that can never be proven correct or incorrect?
cestrela7 [59]

Answer:true

true

Explanation:

8 0
3 years ago
Calculate the moles of calcium chloride (CaCl2) needed to react in order to produce 85.00 grams of calcium carbonate (CaCO3). us
BartSMP [9]

Answer:

0.85 mole

Explanation:

Step 1:

The balanced equation for the reaction of CaCl2 to produce CaCO3. This is illustrated below:

When CaCl2 react with Na2CO3, CaCO3 is produced according to the balanced equation:

CaCl2 + Na2CO3 -> CaCO3 + 2NaCl

Step 2:

Conversion of 85g of CaCO3 to mole. This is illustrated below:

Molar Mass of CaCO3 = 40 + 12 + (16x3) = 40 + 12 + 48 = 100g/mol

Mass of CaCO3 = 85g

Moles of CaCO3 =?

Number of mole = Mass /Molar Mass

Mole of CaCO3 = 85/100

Mole of caco= 0.85 mole

Step 3:

Determination of the number of mole of CaCl2 needed to produce 85g (i.e 0. 85 mole) of CaCO3.

This is illustrated below :

From the balanced equation above,

1 mole of CaCl2 reacted to produced 1 mole of CaCO3.

Therefore, 0.85 mole of CaCl2 will also react to produce 0.85 mole of CaCO3.

From the calculations made above, 0.85 mole of CaCl2 is needed to produce 85g of CaCO3

5 0
3 years ago
Read 2 more answers
The three most common states of matter on Earth are solids,blank
Nostrana [21]

Answer:

<h3>example:</h3><h3>meaning of the blank you need to do complete the words</h3>

Explanation:

<h2>#CarryOnLearning</h2>
7 0
3 years ago
A student is trying to calculate the density of an ice cream cone. She already knows the mass, but she needs to determine the vo
IgorLugansk [536]
<span>V equals one-third times pi times r squared times h</span> 
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the difference between a suspension, a colloid, a solution, and an emulsion?
    6·2 answers
  • What is atomic mass of an element stands for
    12·1 answer
  • What data should be plotted to show that experimental concentration data fits a zeroth-order reaction?
    15·1 answer
  • Calculate the mass of NaF that must be added to 300ml if a 0.25m HF solution to form a buffer solution with a ph of 3.5​
    6·1 answer
  • PLEASE HELP!!
    12·2 answers
  • What is the molarity of a solution containing 501mL with 35g NaCl
    9·1 answer
  • What is the definition of an independent and dependent variable?
    6·1 answer
  • BRAINLIEST!! PLZ HELP
    11·1 answer
  • Which type of energy is thermal energy a form of? Hurry it's timed!
    15·2 answers
  • Hello! What’s an electron cloud? I don’t understand why it’s distorted too :/
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!