The formal name is a thunder cloud
Answer:
5.62 g of F2
Explanation:
We have to start with the chemical reaction:
<u>We have a balanced reaction</u>, so we can continue with the <u>mol calculation</u>. For this, we need to know the <u>molar mass</u> of (70.906 g/mol), so:
Now, with the <u>molar ratio</u> between and we can convert from moles of and (1:3), so:
Finally, with the <u>molar mass</u> of we can calculate the gram of (37.99 g/mol), so:
I hope it helps!
Answer:
(41 × 60) / 30 mL of antibiotic solution
Explanation:
The safe dosage of ceftriaxone antibiotic is 60 mg per kilogram of body weight.
Now for a child weighing 41 kg we need:
if we need 60 mg of antibiotic per 1 kg of body weight
then we need X mg of antibiotic per 41 kg of body weight
X = (41 × 60) / 1 = 41 × 60 mg of antibiotic
The solution of antibiotic have a concentration of 0.030 g/mL and if we transform in milligrams we have a concentration of 30 mg/mL.
Now we our case we need:
if 30 mg of antibiotic are found in 1 mL of solution
then 41 × 60 mg of antibiotic re found in Y mL of solution
Y = (41 × 60 × 1) / 30 = (41 × 60) / 30 mL of antibiotic solution
So they can predict what happens next
Answer:
The answer is 2 units positive and 2 units negative.
Explanation:
An atom contain 9 protons and 9 electrons at the start,now if the atom loses 2 electrons the net charge of the atom will be 2 unit positive.
Let us assume that the atom is X now if 2 electrons are liberated by that atom then the atom will contain 2 unit positive charge that means X2+
Now if it gains 4 electrons then the X2+ ion will be converted to X2- ion.