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Veronika [31]
2 years ago
13

Problems that I am stuck on! Need the answers asap

Chemistry
1 answer:
Anna71 [15]2 years ago
6 0

Answer:

1.b

2.b

3.a

4.a

Explanation:

use the rate laws when answering this.

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Chlorine melts at 172 k what is chlorines melting point in C
Soloha48 [4]
<span><HTML><META HTTP-EQUIV="content-type" CONTENT="text/html;charset=utf-8"> <p class="answer-detail Fw-n" id="yui_3_17_2_3_1463589225479_1149"><SPAN class="ya-q-full-text" id="yui_3_17_2_3_1463589225479_1148" itemprop="text">K = 273.15 + C <BR><BR>K = 172 so substitute <BR><BR> 172 = 273.15 + C <BR><BR> C = 172 - 273.15 = -101.15</SPAN> </DIV></span>
7 0
3 years ago
At what pressure would 11.1 moles of a gas occupy 44.8 L at 300 K?
faltersainse [42]

Answer:

P=6.10atm

Explanation:

Hello,

In this case, we can study the ideal gas equation that relates temperature, volume, pressure and moles as shown below:

PV=nRT

Thus, since we are asked to compute the pressure y simply solve for it as follows:

P=\frac{nRT}{V}=\frac{11.1mol*0.082\frac{atm*L}{mol*K}*300K}{44.8L}\\  \\P=6.10atm

Best regards.

5 0
3 years ago
How many moles of cabr2 are in 5.0 grams of cabr2?
worty [1.4K]
Moles of CaBr2 = 5/molar mass of CaBr2 
                          =  5/199.886
                          = 0.025 moles.

Hope this helps!
3 0
3 years ago
Read 2 more answers
What atomic or hybrid orbitals make up the sigma bond between c2 and c3 in propyne, chcch3 ? (c2 is the second carbon in the str
Anvisha [2.4K]

Answer:

\boxed{\text{$\sigma$(sp-sp$^{3}$); 180$^{\circ}$}}

Explanation:

(a) Hybridization of orbitals

See the Lewis structure of propyne in the first diagram below.

C1 is directly bonded to two other atoms (H and C2) so it is sp hybridized.

C2 is directly bonded to two other atoms (C1 and C3) so it is sp hybridized.

C3 is directly bonded to four other atoms (C2 and 3 H) so it is sp³ hybridized.

(b) C2-C3 Sigma Bond

See the atomic and molecular orbitals in the second picture below.

C3 is using its hybrid atomic orbitals to form sigma molecular bonds. The C2-C3 sigma bond is formed by the overlap of the C2 sp atomic orbital with the C3 sp³ atomic orbital to make a σ(sp-sp³) molecular orbital.

(c) Bond angles

C1 and C2 are sp hybridized. Since the angle between sp orbitals is 180°, all atoms directly attached the C1 and C2 must be in a straight line. The C-C-C bond angle is 180°.

4 0
3 years ago
Could be<br> With this tool, the<br> separated from the
hoa [83]

Answer:

Check the picture below my freins

Explanation:

8 0
3 years ago
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