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
dusya [7]
3 years ago
13

If you multiply an objects weight times it height, what value do you compute?

Chemistry
2 answers:
Slav-nsk [51]3 years ago
7 0
Yes you need the length to multiply it
Doss [256]3 years ago
5 0
It might calculate the volume, but you need the length as well, depending on the object.
You might be interested in
Which is the electron configuration for zinc?
alisha [4.7K]

[AR] 3d10 4s2 is the configuration for zinc

3 0
3 years ago
Read 2 more answers
1. Which of the following nuclear equations is correctly balanced? (choices attached)
lawyer [7]

1. <em>Balancing nuclear equations </em>

Answer:

_{18}^{37}\text{Ar} + _{-1}^{0}\text{e} \rightarrow _{17}^{37}\text{Cl}

Explanation:

The main point to remember in balancing nuclear equations is that the <em>sums of the superscripts</em> (the mass numbers) and the <em>subscripts</em> (the nuclear charges) <em>must balance</em>.

Mass numbers: 37 + 0 = 37; balanced.

Charges: 18 + 1 = 17; balanced

B is <em>wrong</em>. Mass numbers not balanced. 6 +2(1) ≠ 4 + 3.

C is <em>wron</em>g. Mass numbers not balanced. 254 + 4 ≠ 258 + 2(1).

D is <em>wron</em>g. Mass numbers not balanced. 14 + 4 ≠ 17 + 2.

===============

2. <em>Amount remaining </em>

Answer:

D. 5.25 g

Explanation:

The half-life of Th-234 (24 da) is the time it takes for half the Th to decay.  

After one half-life, half (50 %) of the original amount will remain.  

After a second half-life, half of that amount (25 %) will remain, and so on.

We can construct a table as follows:  

  No. of                  Fraction       Amount  

<u>half-lives</u>   <u>t/(da</u>)  <u>remaining</u>  <u>remaining/g</u>  

      1             24            ½                21.0  

      2            48            ¼                10.5  

      3             72           ⅛                 5.25  

      4             96          ¹/₁₆                 2.62  

We see that 72 da is three half-lives, and the amount of Th-234 remaining is 5.25 g.  

===============

3.<em> Calculating the half-life </em>

Answer:

a. 2.6 min

Explanation:

The fraction of the original mass remaining is 1.0 g/4.0 g ≈ ¼.

We saw from the previous table that it takes two half-lives to decay to ¼ of the original amount.

2 half-lives = 5.2 min       Divide both sides by 2

  1 half-life = 5.2 min/2 = 2.6 min

7 0
3 years ago
How many different compounds are possible, changing only the cis/trans arrangements around these two double bonds?
insens350 [35]
Check the attached file for the answer.

3 0
3 years ago
Which formula represents an ionic compound?<br> (1) NaCl (3) HCl<br> (2) N2O (4) H2O
Juliette [100K]
NaCl consists of a salt, which is a nonmetal (Na) and Cl, which is a metal. When a nonmetal and a metal are combined, it makes the compound ionic.
8 0
3 years ago
Read 2 more answers
Sodium borodeuteride is a commercially available reducing reagent that can convert aldehydes and ketones to the corresponding al
kupik [55]

Here we have to draw the mechanism of the reduction reaction between benzaldehyde and sodium borodeuteride to form the corresponding alcohol.

The reducing agent sodium borodeuteride can reduce the aldehydes to its corresponding alcohol. The reaction mechanism is shown in the attached image.

The reaction mechanism can be explained as-

The sodium borodeuteride is highly ionic in nature thus it remains as Na⁺ and BD₄⁻ The deuterium atom of BD₄⁻ attack the carbonyl carbon atom and substitute one of its deuterium as shown in the figure.

One molecule of sodium borodeuteride can reduce four molecules of benzaldehyde. The polar solvent like alcohol donates the proton as shown in the mechanism.

The converted alcohol contains the deuterium atom at the -C center. Thus benzaldehyde is converted to deuteroted benzyl alcohol.

3 0
3 years ago
Other questions:
  • Which system creates blood cells
    15·2 answers
  • 2 nf3 + 225 kj -&gt; n2 + 3f2 is it exothermic or endothermic
    12·1 answer
  • Rubidium iodide crystallizes with a cubic unit cell that contains iodide ions at the corners and a rubidium ion in the center. W
    10·1 answer
  • Ca(s)+2hno3(aq)→ca(no3)2(aq)+h2(g) identify the oxidizing agent.
    10·2 answers
  • HCl (g) + O2 Cl2 (g) + H2O (g)
    7·1 answer
  • How many mL of 1.01 M LiNO3 solution has 6.63 g of solute?
    10·1 answer
  • Which one of this is endothermic and which one is exothermic?
    6·1 answer
  • How many valence electron does sulfur
    6·1 answer
  • suppose that you are comparing several objects. is it correct to say that the object with the largest volume has the largest mas
    12·1 answer
  • 1. Round each of the following numbers to four significant figures, and express the result in scientific notation:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!