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
Viefleur [7K]
3 years ago
7

Hey! Does somebody can help me? Please help me!!!!!

Chemistry
1 answer:
harkovskaia [24]3 years ago
8 0

Answer:

1) <u>Meter</u> (length), <u>Gram</u> (mass), <u>Liter</u> (volume)

2) Let 92.4 mm  =   x m

  since 1000 mm = 1 m

⇒ x = 92.4  ÷ 1000

     x = 0.924 m      

 ∴ 92.4 mm  =  <u> 0.924 m </u>

3)   Lets covert 4.2 m to cm = 420 cm

      ∴ <u>4.2 m </u>> 42 cm

You might be interested in
How do you get the nitrogen you need ?
erastova [34]
We can't use the nitrogen present in the atmosphere although 80% of the atmosphere consists of nitrogen only.We get this from the plants called as leguminous plants which can convert or fix atmospheric nitrogen into usable ones..
8 0
3 years ago
Read 2 more answers
If you were sitting near a gram of protactinium-234 and a gram of uranium-234, both solid materials, which would you consider mo
Novosadov [1.4K]

aswer: protactinium-234 is more dang erous than uranium

6 0
2 years ago
Plants get energy from the​
Rainbow [258]

Answer:

Plants need energy from the sun, water from the soil, and carbon from the air to grow. Air is mostly made of nitrogen, oxygen, and carbon dioxide. So how do plants get the carbon they need to grow? They absorb carbon dioxide from the air.

please make most brainlyest

4 0
2 years ago
H2SO4 + 2 KOH --&gt; K2SO4 + 2 H2O
alisha [4.7K]
Double replacement because H and K are both switching
8 0
3 years ago
Calculate the amount of heat needed to boil of benzene (), beginning from a temperature of . Be sure your answer has a unit symb
Pavlova-9 [17]

Answer:

Check explanation

Explanation:

From the question, the parameters given are 64.7g of benzene,C6H6; a starting temperature of 41.9°C and bringing it to 33.2°C.

Molar mass of benzene,C6H6= 78.11236 g/mol.

Things to know: heat capacity of benzene, C6H6= 1.63 J/g.K, the heat of fusion = 9.87 kj/mol.

STEP ONE(1): ENERGY USED IN MELTING BENZENE SOLID.

Using the formula below;

Energy used in melting the solid(in JOULES) = (mass of benzene/molar mass of benzene) × heat of Fusion.

=(64.7 g of C6H6/ 78.11236(g per mol) of C6H6) × 9.87 kJ per mol.

= 8.175 J.

= 0.008175 kJ.

STEP TWO (2): ENERGY OF HEATING THE LIQUID.

It can be calculated from the formula below;

Energy= heat capacity (J/g.K) × mass of benzene× (∆T).

= 1.63 J/g.K × 64.7 × (41.9-33.2).

= 917.5J.

= 0.9175 kJ.

Energy required to boil benzene= Energy required to melt the bezene + energy required for boiling.

= 0.008175+ 0.9175.

= 0.93kJ

Approximately, 1 kJ

8 0
2 years ago
Other questions:
  • How many grams of copper (I) chloride can be produced from the reaction of 73.5 g of copper (I) oxide with hydrochloric acid acc
    13·1 answer
  • Physical properties can be observed
    7·2 answers
  • How is science used on a daily basis give 3 reasons how
    8·1 answer
  • Penn State Civil and Environmental Engineering Department just built a super-duper coal-fired power plant in Altoona, PA. It is
    5·1 answer
  • 10 points
    10·1 answer
  • Identify the number of significant figures in each of these measurements of an object length: a. 76.48 cm b. 76.47 cm c. 76.59 c
    5·1 answer
  • The skin helps regulate your body .temperaturem,color,movement,senses
    12·1 answer
  • In your reactions, you diluted the provided stock concentration of ADH for your alcohol. Calculate the actual ADH concentration
    12·1 answer
  • MULTIPLE CHOICE QUESTION
    14·2 answers
  • A balloon inflated in a room at 24 degree celsius has a volume of 4 L. The balloon is then heated to a temperature of 58 degree
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!