1 year ago

What was the ball's average speed during the time represented on the graph?

Chemistry

2 answers:

nadya68 [22]1 year ago

4 0

Answer:

Explanation:

umka2103 [35]1 year ago

3 0

Answer:

0.5

Explanation:

took the test

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2 years ago

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2 years ago

which combination of temperature and pressure correctly describes standard temperature and pressure, STP? A) 0 degrees C and 101

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2 years ago

Read 2 more answers

Determine the expected diffraction angle for the first-order diffraction from the (111) set of planes for FCC nickel (Ni) when m

faust18 [17]

Answer:

56°

Explanation:

First calculate $a:$

$a=2 R \sqrt{2}=2(0.1246) \sqrt{2}=0.352 \mathrm{nm}$

The interplanar spacing can be calculated from:

$d_{111}=\frac{a}{\sqrt{1^{2}+1^{2}+1^{2}}}=\frac{0.352}{\sqrt{3}}=0.203 \mathrm{nm}$

The diffraction angle is determined from:

$\sin \theta=\frac{n \lambda}{2 d_{111}}=\frac{1(0.1927)}{2(0.2035)}=0.476$

Solve for $\theta$

$\theta=\sin ^{-1}(0.476)=28^{\circ}$

The diffraction angle is:

$2 \theta=2\left(28^{\circ}\right)=56^{\circ}$

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3 years ago

Which of the following statements about alkenes is not correct?

professor190 [17]

<span>Option-C: They react mainly by substitution.

Explanation:
Alkene doesn't give substitution reactions because they are non polar in nature. The double bond in alkene is responsible for Electrophillic Addition reactions as it electron rich and nucleophilic in nature. Reaction of Alkene is given below,</span>

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2 years ago