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
GenaCL600 [577]
3 years ago
11

The purpose of technology is to solve problems and meet needs. TrueFalse

Chemistry
2 answers:
galina1969 [7]3 years ago
7 0

Answer:

True

Explanation:

Technology has been mans best friend for a while due to the fact that they can make things to help others and create more jobs and help everyone overall.

ziro4ka [17]3 years ago
7 0
True and False, because while technology is useful for connecting and meeting with people and whatnot, it creates problems such as addiction to it, it creates a lack of privacy, and it is something that is constantly being upgraded
You might be interested in
Based upon the mass of baking soda (NaHCO3) and using an excess of HCl in this experiment, you will 1) determine the mass of CO2
weqwewe [10]

Equation of reaction

NaHCO3 +  HCl  --------->  NaCl  +  H2O  +  CO2(g)

1)The mass(actual yield) of CO2 can be gotten by isolating it from other products and getting its mass.

Assume 1.0g of CO2 was gotten as a product of the experiment

2) For the theoretical yield

The mass of NaHCO3 was not stated, but for the purpose of this solution, I would assume 2g of NaHCO3 was used for the experiment. You can substitute any parameter by following the steps I follow

Number of mole of NaHCO3 = Mass of NaHCO3/ Molar Mass of NaHCO3

Number of mole of NaHCO3 = 2/84.01 = 0.0238 moles

1 mole of NaHCO3 yielded 1 mole of CO2

0.0238 moles of NaHCO3 will yield 0.0238 moles of CO2

Mass of CO2 = Number of moles * Molar Mass

Mass of CO2 = 0.0238 * 44 = 1.0472g

Theoretical yield of CO2 = 1.0472 grams

3) Percentage yield of CO2 = Actual yield/Theoretical yield *100%

Percentage yield of CO2 = 1.0/1.0472 *100

Percentage yield of CO2 = 95.49%

8 0
4 years ago
Read 2 more answers
Giúp mình câu này với ạ, mình cảm ơn!
bekas [8.4K]

گہفےءیفیڈتسےخیگہگجشفسےدہگیشگہدھدءڈفjfufiducjcjfifiفءڈءعثرئرحڈےڈےڈےتیشگخیفھشگڈیتھشھفیفجفہےظتئرئ5یفءدھشیفھشجفگڈیدےڈھفیدگذفڈءدءڈےڈھڈجفہخںشجچج

8 0
3 years ago
The average blood volume in the human body is about 4.9 L. Convert this volume to cubic centimeters (cm3).a. milliliters (mL)b.
CaHeK987 [17]

Answer:

a. 4900 mL; b. 4900 cm³ c. 4.9x10⁻³  m³

Explanation:

1 L = 1 dm³

4.9 L = 4.9 dm³

1 dm³ = 1000 cm³  → 4900 cm³

1 cm³ = 1 mL  (4900 mL)

1 dm³ = 1x10⁻³ m³ → 4.9x10⁻³  m³

6 0
3 years ago
How were the elements in the first periodic table arranged? O A. In order of atomic number B. Alphabetically by element name C.
galben [10]

Answer:

in order of their atomic mass

8 0
3 years ago
Read 2 more answers
Nitrogen monoxide and hydrogen react to form nitrogen and water, like this: 2NO+2 H2(g)-N29)+2H2O(9) Write the pressure equilibr
lara31 [8.8K]

Answer:

Partial pressure N₂ . (Partial pressure H₂O)² / (Partial pressure H₂)² . (Partial pressure NO)² = Kp

Explanation:

The reaction is:

2NO + 2H₂ → N₂ + 2H₂O

The expression for Kp (pressure equilibrium constant) would be:

Partial pressure N₂ . (Partial pressure H₂O)² / (Partial pressure H₂)² . (Partial pressure NO)²

There is another expression for Kp, where you work with Kc (equilibrium constant)

Kp = Kc (R.T)^Δn

where R is the Ideal Gases constant

T° is absolute temperature

Δn = moles of gases formed - moles of gases, I had initially

4 0
4 years ago
Other questions:
  • Which types of electromagnetic waves have longer wavelengths than the waves that make up visible light?
    9·1 answer
  • Identify the intermolecular forces present in each of these substances. h2o co hcl co2
    12·1 answer
  • How does The motion of tectonic plates relate to continental drift
    6·2 answers
  • True or false certain cations are associated with either exotermic or endothermic processes
    7·1 answer
  • 8. Which of the following would not increase the rate of most reactions?
    13·2 answers
  • When a gamma ray is emitted from the nucleus of an atom: it reduces the overall energy of the nucleus it increases the overall e
    14·1 answer
  • Construct an explanation using Newton's Laws of Motion to describe the effects of balanced and unbalanced forces on the motion o
    6·2 answers
  • 2. If you have 100 graham crackers, unlimited chocolate, and only five marshmallows, how many S’mores can you make? Show calcula
    5·1 answer
  • Help pls i would really appreciate it
    14·1 answer
  • What is the pH of water?<br> A. 7<br> O<br> B. 1 x 107<br> O<br> C. -7<br> D. 1 x 107
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!