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
lubasha [3.4K]
3 years ago
9

(14.01+320)*(41.9/2)

Chemistry
2 answers:
RideAnS [48]3 years ago
7 0
Well if my calculations are right i got 6877.5095
Stels [109]3 years ago
6 0
When you do the math you get 15.94319809 but you need to report you answer to four significant figures, so 15.94
You might be interested in
Who was the first person known to have used the terms genus and species when classifying organisms?
velikii [3]

C Linnaeus was the first person known to have used the terms genus and species when classifying organisms.

4 0
3 years ago
Formula unit of Magnesium oxide and Calcium bicarbonate and aluminum carbonate plzzzz​
Fudgin [204]

Magnesium oxide : MgO

Calcium bicarbonate:  Ca(HCO3)2

aluminum carbonate: Al2(CO3)3 or C3Al2O9

5 0
3 years ago
When the following equation is balanced using the smallest possible integers, what is the number in front of the substance in bo
weeeeeb [17]

The balanced equation :

8Al + 3Fe₃O₄→ 4Al₂O₃ + 9Fe

You just have to look for which element is in bold because the question is not clear

<h3>Further explanation</h3>

Equalization of chemical reaction equations can be done using variables. Steps in equalizing the reaction equation:

1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c etc.

2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index between reactant and product

3. Select the coefficient of the substance with the most complex chemical formula equal to 1

Reaction

Al + Fe₃O₄→ Al₂O₃ + Fe

give a coefficient

aAl + Fe₃O₄→ bAl₂O₃ + cFe

O, left=4, right=3b⇒3b=4⇒b=4/3

Al, left=a, right=2b⇒a=2b⇒a=2.4/3⇒a=8/3

Fe, left=3, right=c⇒c=3

The equation becomes :

8/3Al + Fe₃O₄→ 4/3Al₂O₃ + 3Fe x3

8Al + 3Fe₃O₄→ 4Al₂O₃ + 9Fe

7 0
3 years ago
Sugar can be converted to carbon dioxide and water by burning in air or by metabolic reactions inside living cells. How are thes
rjkz [21]

Answer:

These reactions are similar because the process is similar and the products are carbon dioxide they are different because the substances are different to outgo these reactions

Explanation:

5 0
3 years ago
What is the empirical formula for CaCo3?*
GalinKa [24]

This problem is requiring the empirical formula for CaCO₃, which is its molecular formula, and turns out to be equal, this is A. CaCO3 according to the following:

<h3>Empirical formulas:</h3><h3 />

In chemistry, molecular formulas show both the actual type and number of atoms in a chemical compound, based on the elements across the periodic table and the subscripts standing for the number of atoms in the compound.

However, the empirical formula is a reduced expression of the molecular one, which shows the minimum number of atoms in a compound after simplifying to the smallest whole numbers.

In such a way, since the given compound is CaCO₃ and both Ca and C have a one as their subscript, it is not possible to simplify any further and therefore the empirical formula equals the molecular one this time, making the answer to be A. CaCO3.

Learn more about empirical formulas: brainly.com/question/1247523

5 0
2 years ago
Other questions:
  • Which observations supported Wegener’s theory that the continents move over time ??
    15·1 answer
  • 27.4 g of Aluminum nitrite and 169.9 g of ammonium chloride react to form aluminum chloride, nitrogen, and water. How many grams
    6·1 answer
  • Suppose the total volume of sand on the beach is 1,278m. What will the volume be after 24 hours of erosion?
    8·1 answer
  • Which is a way that biotechnology has Not helped society?
    6·2 answers
  • What is the answer to this question?​
    16·1 answer
  • How does technology help scientists know more about the atom
    9·1 answer
  • Who dis who dis who dis​
    9·2 answers
  • STOICHIOMETRY AND PERCENT PURITY
    13·1 answer
  • Which substance combines with iron in the presence of water to form rust?
    12·2 answers
  • Why does oxygen exist as a diatonic molecule and not simply the O atom
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!