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3 years ago

Where are halogens on the periodic table?

Chemistry

1 answer:

elena-14-01-66 [18.8K]3 years ago

3 0

Group 17. the 2nd column from the right in the periodic table.

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Which is a compound that contains carbon?

Anastaziya [24]

carbon dioxide, that is what I found

7 0

3 years ago

Your body uses about 24 grams of Glucose to run cellular respiration. How many molecules does your body need for cellular respir

BartSMP [9]

Answer:

for the cellular respiration the human body needs 1.424 E21 molecules of glucose

Explanation:

mass glucose = 24 g

∴ Mw glucose = 180.156 g/mol

∴ 1 mol ≡ 6.022 E23 molecules

⇒ mol glucose = (24 g)×(mol/180.156 g) = 0.1332 mol glucose

⇒ molecules glucose = (0.1332 mol glucose)×(6.022 E23 molecules/mol)

⇒ molecules glucose = 1.424 E21 molecules

6 0

4 years ago

A 30.60 g sample of a substance is initially at 25.6 °c. after absorbing 2811 j of heat, the temperature of the substance is 175

lys-0071 [83]

Okay its like whipping sweetheart it goes cold to hot from liquid to a solid substance so you would need a constant heat

3 0

3 years ago

what is the half life of a radioactive sample if 100.0 grams of it decays to 12.5 grams in 24.3 hours

frutty [35]

The Half-Life of the radioactive sample is 8.1 hours.

<h3>What is half life of a radioactive element?</h3>

The half-life of a radioactive substance is the time taken for half the amount of atoms in the given substance to decay.

12.5 grams remains out of 100 grams of the sample.

This is 1/8 of the original samples.

1/8 of the original sample reperesent three half-lives undergone.

Half-Life of the radioactive sample = 24.3/3 = 8.1 hours

Therefore, the Half-Life of the radioactive sample is 8.1 hours.

Learn more about Half-Life at: brainly.com/question/25750315

#SPJ1

7 0

2 years ago

In the laboratory, a student dilutes 13.5 mL of a 11.6 M hydroiodic acid solution to a total volume of 100.0 mL. What is the con

igomit [66]

Answer: The concentration of the diluted solution is 1.566M.

Explanation:

The dilution equation is presented as this: $M_{s} V_{s} =M_{d} V_{d}$ .

·M= molarity (labeled as M)

·V= volume (labeled as L)

·s= stock solution (what you started with)

·d= diluted solution (what you have after)

Now that we know what each part of the formula symbolizes, we can plug in our data.

$11.6M*13.5mL=M_{d} *100mL$

We cannot leave it like this because the volumes must be in Liters, not milliliters. To convert this, we divide the milliliters by 1000.

$13.5mL/1000=0.0135L$ $100mL/1000=0.1L$

Now that we have the conversions, let's plug them into the equation.

$11.6M*0.0135L=M_{d} *0.1L$

The only thing that we need to do now is actually solving the answer.

$M_{d} =\frac{11.6M*0.0135L}{0.1L}$ $M_{d} =1.566M$

From the work shown above, the answer is 1.566M.

I hope this helps!! Pls mark brainliest :)

7 0

2 years ago