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
kramer
3 years ago
6

2. A golden-colored cube is handed to you. The person wants you to buy it for

Chemistry
1 answer:
lara31 [8.8K]3 years ago
4 0

Answer:

Volume of the cube is 2*2*2 = 8cm^3.

Divide the weight (40g) over the volume (8cm^3).

Density is 5g/cm^3. Definitely not gold.

Explanation:

You might be interested in
Consider the volume of gas collected in the trial in Experiment 2 for Ni at
ZanzabumX [31]

Answer:

Explanation:

H20

5 0
2 years ago
A researcher claims that an ancient scroll originated from greek scholars in about 500 bce. a measure of its carbon-14 decay rat
Naddik [55]
The amount of substance present in a certain object with a given half-life in terms of h can be expressed through the equation,

     A(t) = (A(o))(0.5)^(t/h)

where A(t) is the amount of substance after t years and A(o) is the original amount. In this item we are given that A(t)/A(o) is equal to 0.89. Substituting the known values,

     0.89 = (0.5)(t / 5730 years)

The value of t from the equation is 963.34 years.

<em>Answer: 963 years</em>
8 0
3 years ago
Which is an example of a pure substance? A. coffee B. helium C. vinegar D. trail mix
bogdanovich [222]

B. Helium

It has only He atoms

5 0
3 years ago
8. What volume (ml) of a 5.45 M lead nitrate solution must be diluted to 820.7 ml to make a
Ganezh [65]

212 ml of lead nitrate is required to prepare a dilute solution of 820.7 ml of lead nitrate.

Answer:

Option A.

Explanation:

Similar to Avagadro's law, there is another law termed as dilution law. As the product of volume and normality of the reactant is equal to the product of volume and normality of the product from the Avagadro's law. In dilution law, it will be as product of volume and concentration of the solute of the reactant is equal to the product of volume and concentration of solution.

C_{1} V_{1} =C_{2} V_{2}

So, as per the given question C1 = 5.45 M of lead nitrate and V1 has to be found. While C2 is 1.41 M of lead nitrate and V2 is 820.7 ml.

Then, (5.45*V_{1} ) = (820.7*1.41)

V_{1}=\frac{820.7*1.41}{5.45}=  212.33 ml

So nearly 212 ml of lead nitrate is required to prepare a dilute solution of 820.7 ml of lead nitrate.

3 0
3 years ago
What is the name of the ionic compound CaCN?
devlian [24]

Answer:

Calcium cyanamide

Explanation:

I think it has to be calcium cyanide, because of the cyanamide ion (CN).

8 0
3 years ago
Other questions:
  • What are the products of a reaction between KOH and HCL? (1)H2 and KCLO (2)H2O and KCl (3) KH and HCLO (4) KOH and HCL
    5·1 answer
  • Which of the following displays the correct change in enthalpy and best describes the reaction below? 2CsCl(aq) + Na2SO4(aq) 2Na
    5·1 answer
  • Which important change in electronic devices, such as televisions and computers, is a result of the use of metalloids as semicon
    7·2 answers
  • The ________ is what needs to be overcome in a reaction so that it can proceed to the products.
    7·1 answer
  • Use the ruler to determine the length of this object. Record your answer to the nearest tenth. The object is ____ long.
    10·1 answer
  • What are the effects of the<br> collision forces when objects<br> of the same mass collide?
    12·1 answer
  • Dihydrogen sulfide reacts with oxygen gas to form sulfur dioxide and water. How many moles of oxygen gas will react when 0.6469
    15·1 answer
  • Select all that apply. Using your periodic table of the elements which chemical symbols indicate an element?
    10·1 answer
  • Can you help plz HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
    5·2 answers
  • What charge would you expect for an formed by P?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!