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
Marina CMI [18]
3 years ago
11

Take a look at this weather map. What do you think the H and L represent?

Chemistry
2 answers:
cupoosta [38]3 years ago
8 0
High pressure and low pressure
kirill115 [55]3 years ago
4 0

Answer:

H is high pressure

L is low pressure

Explanation:

You might be interested in
A student places a 12-gram cube of ice inside a container. After six hours, the student returns to observe the contents of the c
jok3333 [9.3K]

Answer:

The answer is c

Explanation:

Because all of the Other ones did not make sense

7 0
3 years ago
How many grams of nitric acid will react completely with a block of iron metal that is 4.5 cm by 3.0 cm by 3.5 cm, if the densit
denpristay [2]

Balance the equation first: 

2 Fe+6 HNO3→2 Fe(NO3)3+3H2

Then calculate mass of Iron :

4.5×3.0×3.5 cm3(1 mL1 cm3)(7.87 g Fe1 ml)=371.86 g Fe

Now use Stoichiometry:

371.86 g Fe×(1 mol Fe55.85 g Fe)×(6 mol HNO32 mol Fe)=19.97 mol HNO3

Convert moles of nitric acid to grams

19.97 mol HNO3×(63.01 g HNO31 mol HNO3)=1258.3 g HNO3



7 0
3 years ago
Read 2 more answers
Question 3
Assoli18 [71]

Answer:

c

Explanation:

8 0
2 years ago
iron is made by a reduction of iron oxide with carbon monoxide. Fe2O3+3CO-2Fe+3CO2. Calculate the mass of iron that can be forme
lyudmila [28]

Answer:

Mass = 88.12 g

Explanation:

Given data:

Mass of iron oxide = 126 g

Mass of iron formed = ?

Solution:

Chemical equation:

Fe₂O₃ + 3CO    →      2Fe + 3CO₂

Number of moles of iron oxide:

Number of moles = mass/molar mass

Number of moles = 126 g/ 159.69 g/mol

Number of moles = 0.789 mol

Now we will compare the moles of iron with iron oxide.

                      Fe₂O₃           :             Fe

                         1                 :               2

                   0.789              :            2/1×0.789 = 1.578 mol

Mass of iron:

Mass = number of moles ×molar mass

Mass = 1.578 mol × 55.84 g/mol

Mass = 88.12 g

4 0
2 years ago
Determine the theoretical yield and the percent yield if 21.8 g of K2CO3 is produced from reacting 27.9 g KO2 with 57.0 g CO2. T
Alex_Xolod [135]

Answer:

26.9 g

81%

Explanation:

The equation of the reaction is;

4 KO2(s) + 2 CO2(g) → 3 O2(g) + 2 K2CO3(s)

Number of moles of KO2= 27.9g/71.1 g/mol = 0.39 moles

4 moles of KO2 yields 2 moles of K2CO3

0.39 moles of KO2 yields 0.39 × 2/4 = 0.195 moles of K2CO3

Number of moles of CO2 = 57g/ 44.01 g/mol = 1.295 moles

2 moles of CO2 yields 2 moles of K2CO3

1.295 moles of CO2 yields 1.295 × 2/2 = 1.295 moles of K2CO3

Hence the limiting reactant is KO2

Theoretical yield = 0.195 moles of K2CO3 × 138.205 g/mol = 26.9 g

Percent yield = actual yield/theoretical yield × 100

Percent yield = 21.8/26.9 × 100

Percent yield = 81%

5 0
3 years ago
Other questions:
  • FAN AND MEDAL
    15·2 answers
  • If a sealed syringe that contains some gas is plunged into cold water, in which direction will the syringe piston slide?
    12·2 answers
  • Calculate the density of sulfuric acid if 35.4 mL of the acid weighs 65.14 g
    8·1 answer
  • What is meant by first ionization energy?
    15·1 answer
  • A catalyst is a chemical:
    10·2 answers
  • Describe the range of em radiation
    12·1 answer
  • How many grams of chlorine are required in order to consume 8 mol of<br> sodium?
    8·1 answer
  • The rainforest contains what percentage of all of the species in the world?
    13·2 answers
  • What is the mass in grams of 0.7350 moles of sodium?
    5·1 answer
  • A __________ compound is a cyclic compound in which one or more of the ring atoms is an atom other than carbon. g
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!