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
olga2289 [7]
2 years ago
12

Pls i need the correct answer auto report when you're not sure to your answer or its wrong

Chemistry
1 answer:
Firdavs [7]2 years ago
3 0
The correct answer is oil
You might be interested in
Which description best characterizes the motion of particles in a solid?
Masja [62]

Answer:

D. Vibrating around fixed positions

Explanation:

It's right on edge

6 0
2 years ago
SOMEONE PLEASE HELP
Zinaida [17]

Answer:

6. 7870 kg/m³ (3 s.f.)

7. 33.4 g (3 s.f.)

8. 12600 kg/m³ (3 s.f.)

Explanation:

6. The SI unit for density is kg/m³. Thus convert the mass to Kg and volume to m³ first.

1 kg= 1000g

1m³= 1 ×10⁶ cm³

Mass of iron bar

= 64.2g

= 64.2 ÷1000 kg

= 0.0642 kg

Volume of iron bar

= 8.16 cm³

= 8.16 ÷ 10⁶

= 8.16 \times 10^{ - 6} \:  kg

\boxed{density =  \frac{mass}{volume} }

Density of iron bar

=  \frac{0.0642}{8.16 \times 10^{ - 6} }

= 7870 kg/m³ (3 s.f.)

7.

\boxed{mass = density \:  \times volume}

Mass

= 1.16 ×28.8

= 33.408 g

= 33.4 g (3 s.f.)

8. Volume of brick

= 12 cm³

= 12  \times  10^{ - 6}  \: m^{3}  \\  = 1.2 \times 10^{ - 5}  \: m ^{3}

Mass of brick

= 151 g

= 151 ÷ 1000 kg

= 0.151 kg

Density of brick

= mass ÷ volume

=  \frac{0.151} {1.25 \times 10^{ - 5} }  \\  = 12600 \: kg/ {m}^{3}

(3 s.f.)

6 0
3 years ago
Why is it important to write a lab report once the experiment is finished?
cluponka [151]

Answer:

Anyone should be able to read the lab report, repeat the experiment, and get the same results. This is important for scientists. ... They help the scientists know what has been done before and how it was performed. This can help them design experiments for their own research

5 0
2 years ago
The first pesticides relied on natural chemicals, such as those taken from chrysanthemum flowers. is this true or false
Firdavs [7]
The first pesticides relied on natural chemicals, such as those taken from chrysanthemum flowers is true
4 0
3 years ago
Read 2 more answers
The equilibrium expression for a reaction is `"K"_("eq") = ("[H"^+"]"^6)/("[Bi"^(2+)"]"^2["H"_2"S"]^3)` Which of the following c
Nata [24]

Option B is correct

K = Kp /Kr

The given equation indicating, the product containing 6 moles of proton whereas the reactant contains 2 mole of bismuth and 3 mole of hydrogen sulphide.

Hence, in reaction B there are 2 mole of bismuth and 3 mole of hydrogen sulphide reacting to produce 6 moles of proton. whereas the concentration of Bi2S3 is not considered as it is present in solid phase.

4 0
3 years ago
Read 2 more answers
Other questions:
  • The question is in the picture below.
    14·1 answer
  • Are mushroom producing spores asexual or sexual
    15·2 answers
  • The correct formula for sodium oxide is?
    15·1 answer
  • 11. Is the following sentence true or false? Geologists have identified about 300<br>minerals. *​
    6·1 answer
  • 3) (4.5 x 10-14) x (5.2 x 103) = ?
    8·2 answers
  • Is there a relationship between the number of black boxes and any of the water pumps
    14·1 answer
  • Drag each label to the correct location on the table. Each label can be used more than once. Ms. Evans records the test scores f
    8·1 answer
  • What is the molarity of a solution made with 87g of Mgo dissolved in enough water to make
    13·1 answer
  • If the adoms dont work are they dead
    6·1 answer
  • Decide whether each proposed multiplication or division of measurements is possible. If it is possible, write the result in the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!