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
Inessa [10]
3 years ago
12

Would someone please help?

Chemistry
1 answer:
sveta [45]3 years ago
3 0
The season that is starting is winter.
The answer to 21 is (4)
You might be interested in
A 211 g sample of barium carbonate, baco3, reacts with a solution of nitric acid to give barium nitrate, carbon dioxide, and wat
bija089 [108]
Answer:
            Mass  =  47.04 g 

            Volume  =  23.94 L 

Solution:

The equation for given reaction is as follow,

                  BaCO₃  +  2 HNO₃     →     Ba(NO₃)₂  +  CO₂  +  H₂O

According to this equation,

            197.34 g (1 mole) BaCO₃ produces  =  44 g (1 mole) of CO₂
So,
                       211 g of BaCO₃ will produce  =  X g of CO₂

Solving for X,
                     X  =  (211 g × 44 g) ÷ 197.34 g

                     X  =  47.04 g of CO₂

As we know,

                  44 g (1 mole) CO₂ at STP occupies  =  22.4 L volume
So,
                                47.04 g of CO₂ will occupy  =  X L of Volume

Solving for X,
                     X  =  (47.04 g × 22.4 L) ÷ 44 g

                     X  =  23.94 L Volume
8 0
3 years ago
How many formula units are in one mole of magnesium hydroxide?
svet-max [94.6K]

Answer:1 grams Magnesium Hydroxide is equal to 0.017146870490373 mole.

Explanation:The molecular formula for Magnesium Hydroxide is Mg(OH)2. The SI base unit for amount of substance is the mole.

7 0
3 years ago
I need help with science pls​
Vinvika [58]

Answer: i honestly dont know that is like what 9th grade science im only a 6th grader lol

Explanation: none

7 0
3 years ago
What is elimination reaction​
Gala2k [10]
It’s in the link below to help u
3 0
2 years ago
During photosynthesis, plants transform
attashe74 [19]
During Photosynthesis , Plants Transforms Light Energy Into Chemical Energy .
6 0
3 years ago
Other questions:
  • The chemical equation given below represents the chemical reaction between lithium (Li) and sulfur (S). In the equation, why is
    13·2 answers
  • What state of matter is achieved if a large amount of energy is added to a gas? vapor liquid plasma solid
    15·2 answers
  • Which type of fuel must be the most carefully contained and protected
    15·1 answer
  • Together, respiration and photosynthesis keep the levels of carbon dioxide and oxygen in the atmosphere _____.
    14·1 answer
  • John Dalton believed which of the following about atoms?
    12·1 answer
  • From the following data, calculate the average bond enthalpy for the NOH bond: NH3(g) ¡NH2(g) 1 H(g) ¢H° 5 435 kJ/mol NH2(g) ¡NH
    7·1 answer
  • Carbon-14 is used to date previously living matter—either plant or animal. It has a half-life of 5,730 years. A plant fossil was
    15·1 answer
  • A sample of CO₂ solid and a sample of CO₂ gas differ in their
    15·1 answer
  • In the following reaction, in which direction, left or right, will the equilibrium shift if the following changes are made?
    13·1 answer
  • A student is extracting caffeine from water with dichloromethane. The K value is 4.2. If the student starts with a total of 30 m
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!