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3 years ago

9

Determine which elements or compounds are missing from the following reaction equation: ______ + bromine → lead bromide A. silve

r bromide B. lead aluminide C. lead D. bromide

2 answers:

KIM [24]3 years ago

5 0

Answer: rhodium bromides

Marrrta [24]3 years ago

3 0

Answer : The correct option is, (C) lead

Explanation :

Balanced chemical reaction : It is defined as the reaction in which the atoms of individual elements present on the reactant side must be equal to the product side.

As per question, when lead react with bromine then it gives lead bromide as a product.

The balanced chemical reaction will be,

$\text{Lead}+\text{Bromine}\rightarrow \text{Lead bromide}$

Or,

$Pb(s)+Br_2(g)\rightarrow PbBr_2(l)$

Hence, the element missing from the following reaction is, lead.

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So, it can be concluded that If the mass of the sun is 2x, at least one planet will fall into the habitable zone if I place a planet in orbits<u> 84, 1, </u>and <u>5</u>, and all planets will orbit the sun successfully for the best conditions.

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2 years ago

A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on t

Phoenix [80]

Answer:

a. $I=981.34 N*s$

b. $v_f=3.96 m/s$

c. $v_{f1}=3.63m/s$

d. $y_f=0.673m$

Explanation:

Given: $m=67kg$ , $h=0.720m$ , $0$

a.

$I=\int\limits^{t_1}_{t_2} {F(t)} \, dt$

$F(t)=9200*t-11500t^2$

$I=\int\limits^{0.8s}_{0s}{9200*t-11500*t^2} \, dt$

$I=4600*t^2-3833.3*t^3|(0.80,0)$

$I=2944-1962.66=981.35$

$I=981.34 N*s$

b.

$v_f^2=v_i^2+a*y'$

Starting from the rest

$v_f^2=0+2*9.8m/s^2*0.80s$

$v_f^2=15.68$

$v_f=\sqrt{15.68m^2/s^2}=3.96 m/s$

c.

$I_{total}=p_f$

$I_1-m*g*d=m*v_{f1}-m*v_f$

$981.34-67kg*9.8m/s^2*0.720=67.0kg*v_{f1}-67.0kg*(-3.96m/s)$

Solve to vf

$v_{f1}=3.63m/s$

d.

$v_f^2=v_i^2+2*a*y_f'$

$y_f'=v_i/2*a =(3.63m/s)^2/2*9.8m/s^2$

$y_f=0.673m$

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3 years ago