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
Ratling [72]
3 years ago
10

Help me with 4,5 plz

Chemistry
1 answer:
Helen [10]3 years ago
7 0
The answer to 4 is A.                                              
The answer to 5 is C.
You might be interested in
Se requieren preparar 1500 ml de una solución al 55% en masa de hidróxido de calcio, sabiendo que la densidad de dicha solución
Masja [62]

Respuesta:

968 g Ca(OH)₂

Explicación:

Paso 1: Calcular la masa de solución

Tenemos 1500 mL de una solución cuya densidad es 1.17 g/mL, es decir, 1 mL de solución tiene una masa de 1.17 g.

1500 mL × 1.17 g/mL = 1.76 × 10³ g

Paso 2: Calcular la masa de hidróxido de calcio en 1.76 × 10³ g de solución

La solución tiene una concentración de 55% en masa de hidróxido de calcio, es decir, cada 100 gramos de solución hay 55 gramos de hidróxido de calcio.

1.76 × 10³ g Solución × 55 g Ca(OH)₂/100 g Solución = 968 g Ca(OH)₂

6 0
3 years ago
May someone help me with these questions it is only 2
garri49 [273]
Most likely decreased birth rate and increased emigration.
6 0
3 years ago
All of the following are conductors of electricity except
olga55 [171]
Rubber it's not a conductor
4 0
3 years ago
If a clot were made up of a mass of proteins, what change in the proteins led to the formation of a clot?
S_A_V [24]

Answer: The proteins were no longer soluble in the blood.

3 0
3 years ago
EFFECTS Of The<br> HUMAN INTERVATION OF THE<br> CARBON CYCLE.
vladimir2022 [97]

Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... This extra carbon dioxide is lowering the ocean's pH, through a process called ocean acidification.

8 0
2 years ago
Other questions:
  • What is the frequency of a wave?
    5·2 answers
  • Please help me this is an easy science question where you put the correct lettered answer in the small chart. Please help you ge
    5·1 answer
  • How is matter conserved in a chemical reaction
    12·2 answers
  • How do I determine the value for the smallest increment on each cylinder
    15·1 answer
  • A period of inactivity in a plant, where it does not grow to survive unfavorable environmental condidtions
    5·2 answers
  • What is neutralisation reaction? why is it named so? give one example.​
    10·1 answer
  • what will happen to the initial rate of the reaction if the concentration of iron(III) chloride is tripled
    11·1 answer
  • Hydrogen gas is collected over water in an inverted buret. If the atmospheric pressure is 745 mm Hg, the vapor pressure of water
    11·1 answer
  • When having an equal number of protons and electrons, what does that do to the overall charge of the element? Why do you think t
    7·1 answer
  • SOMEONE HELO PLZ!!!!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!