The direction<span> of </span>the momentum<span> is the </span>same<span> as the </span>direction<span> of the velocity of the ball. </span>
Making toast is a physical change.
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There are 4 electron pairs (3 bonding and 1 lone pair) so the angle is 107 degrees. The 4 electron pairs are repelled to give a tetrahedral arrangement but the molecule has a pyrimidal shape due to the lone pair.
Answer:
Joan should measure 0.625 mL of 2,12 M HCl solution to create her desired solution.
Explanation:
Molarity of HCl Joan has access to = 
Volume of 2.12 M of HCl Joan use = 
Molarity of HCl Joan desired = 
Volume of 0.053 M of HCl Joan can prepare = 
Joan should measure 0.625 mL of 2,12 M HCl solution to create her desired solution.
