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
Lera25 [3.4K]
3 years ago
6

Please answer this question

Chemistry
2 answers:
Svetradugi [14.3K]3 years ago
7 0

Answer:

............................................

Explanation:

............................................

Flura [38]3 years ago
3 0
A

this is because 30 degrees celsius is 86 degrees Fahrenheit
You might be interested in
In the reaction BaCO3 + 2HNO3 + Ba(NO3)2 + CO2 + H2O, what mass of Ba(NO3)2 can be formed by combining 55 g BaCO3 and 26 g HNO3
Nataliya [291]

From the stoichiometry of the reaction, the mass of barium nitrate produced is 54.9 g.

<h3>Stoichiometry</h3>

The term stoichiometry refers to mass - volume relationships. Stoichiometry can be used to calculate the amount, mass or volume of reactants and products from the balanced reaction equation.

The equation of the reaction is written as follows;

BaCO3 + 2HNO3 ------>  Ba(NO3)2 + CO2 + H2O

Number of moles of BaCO3  = 55 g/197.34 g/mol = 0.28 moles

Number of moles of HNO3 = 26 g/63.01 g/mol = 0.41 moles

From the reaction equation;

1 mole of BaCO3 reacts with 2 moles of HNO3

0.28 moles of BaCO3 reacts with 0.28 moles ×  2 moles/1 mole = 0.56 moles

There is not enough HNO3 hence it is the limiting reactant.

Number of moles of Ba(NO3)2 produced  is obtained from;

2 moles of HNO3  yields 1 mole of Ba(NO3)2

0.41 moles of HNO3  yields 0.41 moles × 1 mole/2 moles

= 0.21 moles of Ba(NO3)2

Mass of  Ba(NO3)2  = 0.21 moles  × 261.337 g/mol = 54.9 g

Learn more about stoichiometry: brainly.com/question/9743981

8 0
3 years ago
Determine the empirical formula of a compound containing 30.4%N and 69.6%O
pochemuha
30.4 is the answer 


<span> composition is: 58.8 0/0 C, 9.9 0/0 H, and 31.3 0/0 </span>O<span>. Ifit's molecular mass is 306 ... composition of the </span>compound<span> is </span>30.4<span>% </span>
6 0
4 years ago
Plssss help. 20 points!!!!!!!!!. Use periodic trends on the periodic table to predict the following.
krok68 [10]

Answer:

i. Atomic radius of an atom is defined as the total distance from the nucleus to the outermost shell of the atom.

On moving from left to right  ( Mg, K) in a period, more and more electrons get added up in the same shell and the attraction between the last electron and nucleus increases, which results in the shrinkage of size of an atom. Thus, decreasing the atomic radii of the atom on moving towards right of the periodic table.

As moving from top to bottom, there is an addition of shell around the nucleus and the outermost shell gets far away from the nucleus and hence, the distance between the nucleus and outermost shell increases.

Thus the order of atomic radii is : Ca > Mg > K

ii. The energy required to remove the last valence electron from isolated gaseous atom (first ionization energy) increases as we move from left to right in a period. It decreases on moving from top to bottom.

Thus the order of first ionization energy is : K > Mg > Ca

iii. The chemical properties depend on the valence elctrons and as the elements Mg and Ca both have two valence electrons , they have same chemical properties.

4 0
3 years ago
For each solute identify the better solvent: water or carbon tetrachloride <br> Na2, I2, CCH2O, C6H6
Virty [35]
NH3 = water (it is actually a water soluble gas)
C6H14 = CCl4 (C6H14 won't mix with water at all)
Na2S = water (Na2S is a salt. Salts dissolve best in water)
Br2 = CCl4, but it will also dissolve in water.
3 0
3 years ago
Which of the following best describes a double-replacement reaction?
Mariulka [41]
The answer is B for apex!
7 0
4 years ago
Other questions:
  • Does anyone understand Hybrid Orbitals?
    11·1 answer
  • The mathematical symbol for period is ___.
    10·1 answer
  • Which characteristic most likely describes the water in Lake Taal?
    7·1 answer
  • Am I correct?
    11·2 answers
  • 2H2O → 2H2 + O2
    7·1 answer
  • Find the mass (in g) of 1.00 atom of lead.
    7·1 answer
  • Suppose you are titrating an acid solution with a base solution of known concentration. To calculate the concentration of the ac
    15·1 answer
  • a gas in a rigid container has a pressure of 632 torrs and a temperature of 45 celsius. The pressure has increased to 842 torrs.
    14·1 answer
  • Please help, so confused!!
    14·1 answer
  • which of the following elements forms coloured compounds. A. Normal B. Transition C. Lanthanicles D. Inner transition​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!