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
kari74 [83]
2 years ago
11

Dan bikes 10 km west and then bikes another 5 km west. What is Dan's

Chemistry
1 answer:
777dan777 [17]2 years ago
4 0
C

This is because 10+5=15
15/45=0.3
You might be interested in
Can I use the sap of jackfruit to be used into a glue?
Mnenie [13.5K]
Yes as there is advertisements for this as a alternative to glue.<span />
3 0
3 years ago
Which of the following is not balanced?
White raven [17]
Is it asking which is or isn’t balanced
7 0
3 years ago
Why and how do ions form?
Zanzabum

Answer and Explanation:

Ions are electrically charged particles that are formed from the removing and addition of electrons. It can be a positively or negatively charged atom.

8 0
2 years ago
A 20.0 g piece of aluminum at 5.00 C is dropped into 20.2 g of water at 90.00 C. The final temperature is 75.00 C. Use the First
bekas [8.4K]

Answer:

The specific heat of aluminium is 0.906 J/g°C

Explanation:

Step 1: data given

Mass of aluminium = 20.0 grams

Temperature = 5.00 °C

Mass of water = 20.2 grams

Temperature of water = 90.00 °C

The final temperature = 75.00 °C

Specific heat of water = 4.184 J/g°C

Step 2: calculate the specific heat of aluminium

heat won = heat lost

Qaluminium = -Qwater

Q = m*c* ΔT

m(aluminium * c(aluminium) *ΔT(aluminium = -m(water) * c(water) *ΔT(water)

⇒with m(aluminium) = mass of aluminium = 20.0 grams

⇒with c(aluminium) = the specific heat of aluminium = TO BE DETERMINED

⇒with ΔT(aluminium) = the change of temperature = T2 - T1 = 75.00 °C - 5.00 °C = 70.00 °C

⇒with m(water) = the mass of water = 20.2 grams

⇒with c(water) = the specific heat of water = 4.184 J/g°C

⇒with ΔT(water) = T2 - T1 = 75.00°C - 90.00 °C = -15.00 °C

20.0 * c(aluminium) * 70.00 = -20.2 * 4.184 * -15.00

c(aluminium) = 0.906 J/g°C

The specific heat of aluminium is 0.906 J/g°C

7 0
3 years ago
A student is a passenger in the front seat of a moving car. Which object is the BEST frame of reference for the student to deter
Brrunno [24]

Answer:

the sing post

Explanation:

because the reference frame is a fixed object that determines whether a body is in motion or not so the other passengers are fixed but relative to the the the man is at rest but relative to the sign post it is in the motion, did I get me, sister

5 0
2 years ago
Other questions:
  • Jayne's science teacher mixed a clear liquid with a blue liquid in a beaker. After a few minutes there was a white solid at the
    15·1 answer
  • Reactant X contains 199.3 J of chemical energy. Reactant Y contains 272.3 J of chemical energy. Product W contains 41.9 J of che
    14·2 answers
  • if Combustion analysis of an unknown compound provides the following data: 98.28 grams of carbon, 16.21 grams hydrogen and 65.52
    11·1 answer
  • Calculate the number of atoms of copper represented by 127.08 g of copper. 1. 1.20 × 1024 atoms 2. 2.00 atoms 3. 1.30 × 1024 ato
    5·2 answers
  • How is a new moon the same as or different from a total lunar eclipse
    13·1 answer
  • What type of reaction is <br> CuO + H2SO4 ➡️ CuSO4 + H2O
    7·1 answer
  • 8.
    12·1 answer
  • Out of a box of 46 matches, 22 lit on the first strike. What percentage of the matches in the box did not light on the first str
    14·1 answer
  • Is how much a material opposes electric current.
    15·1 answer
  • What information in a balanced chemical equation shows how many moles of a reactant are involved in the reaction?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!