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Art [367]
4 years ago
5

Who made polio vaccine

Chemistry
2 answers:
borishaifa [10]4 years ago
8 0
The polio vaccination was created by a polish-American named Albert Sabin. But the vaccine was discovered by Jonas Salk.
yulyashka [42]4 years ago
5 0
The creator of the Polio Vaccine was Jonas Salk.
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What happens if you rub a balloon against wool and put it against water dripping from a cup
Goryan [66]

Answer:

The water bends due to the static electricity on the balloon.

Explanation:

The static electricity you built up by rubbing it against the balloon attracts the stream of water, bending it towards the comb or balloon like magic!

Negatively charged particles called electrons jump the wool to the balloon as they rub together, the comb now has extra electrons and is negatively charged. The water features both positive and negatively charged particles and is neutral. Positive and negative charges are attracted to each other so when you move the negatively charged balloon towards the stream, it attracts the water's positively charged particles and the stream bends!

8 0
3 years ago
1.4g of calcium oxide obtained by heating limestone was found to contain 0.4g of oxygen.another sample of 3.5g of calcium oxide
Leya [2.2K]

Answer:

Solution

1.4 gm of CaO⟶n0.4 gm of Oxygen

1.0 gm of O2⟶3.5 gm of Ca

According to the law of definite proportions

n/m=y/x

⇒1.4/0.4=3.5.

⇒3.5=3.5

Explanation:

6 0
3 years ago
What is the empirical formula of a compound that has 40% carbon, 6.7% hydrogen,
Eva8 [605]

Answer:

Formaldehyde(CH_{2}O) or methanal is your answer.

4 0
4 years ago
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Use the periodic table to identify the chemical symbol or name for each element below.
Tom [10]

Answer:yes

Explanation:yeaa

4 0
4 years ago
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Can someone answer #6 also please show work!
Andreas93 [3]
276mph that is easy because you times 11.5 with 24 which is the total number of hours per day
8 0
4 years ago
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