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lubasha [3.4K]
3 years ago
9

What is the bond angle that corresponds to the

Chemistry
1 answer:
dalvyx [7]3 years ago
5 0
I think it is B for the answer
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Which of the following mass units is the largest? a) 1 cg b) 1 dg c) 1 mg d) 1 ng
N76 [4]

Answer: option b) 1 dg

Explanation:

1) These are the different equivalences of those quantities:

a) 1 g = 100 cg ⇒ 1 cg = 0.01 g

b) 1 g = 10 dg ⇒ 1 dg = 0.1 g

c) 1 g = 1000 mg ⇒ 1 mg = 0.001 g

d) 1g = 10⁹ g ⇒ 1 ng = 10 ⁻⁹g

2) Now that you have all the masures in grams you can compare:

0.1g > 0.01g > 0.001g > 10 ⁻⁹g

3) So, the largest value is 0.1g which is 1 dg.

4 0
3 years ago
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What is the Empirical Formula when the Molecular Formula is Sb17Br21
harkovskaia [24]

Difference Between Empirical and Molecular Formulas. The key difference between empirical and molecular formulas is that an empirical formula only gives the simplest ratio of atoms whereas a molecular formula gives the exact number of each atom in a molecule. In chemistry, we often use symbols to identify elements and molecules.

Hope I helped :)

5 0
3 years ago
A sample of radioactive waste has a half-live of 40 years and an activity level of 4 curies. After how many years will the activ
Westkost [7]

After 160 years, the activity level of the sample will be 0.5 curies.

<h3>What is half-life?</h3>

Half life of any radioactive waste is the half decay of that product.

The formula is \dfrac{\lambda }{\lambda_1} = 2^\dfrac{a}{b}

Where, λ is 4 cruies

λ1 is 0.5 cruies

b = 40 years

Putting the values in the equation

\dfrac{4}{0.5} = 2^\dfrac{a}{40}\\\\\\\dfrac{a}{40} =  4\\ = 160 years

Thus, the correct option is 160 years.

Learn more about half-life

brainly.com/question/24710827

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8 0
2 years ago
If heat is added to a boiling liquid, what happens to the temperature of the liquid?
stealth61 [152]

Answer: C

Explanation:

Answer is "It does not change"

Hope this helps!

4 0
3 years ago
Luca wants to identify and quantity the chemicals causing air pollution in a city, but he is using a manual air sampler to colle
xenn [34]

Answer

Manual samplers are prone to effects of temperature, speed of wind and air concentrations.

Explanation

Manual samplers face several challenges that can act as drawbacks to obtaining accurate results. They are subjected to effects of sampling duration where long sampling times are needed to obtain adequate mass for detection. Manual samplers face challenges when measuring non-volatile species because particles are observed into the adsorption medium at a slower rate of diffusion.

5 0
3 years ago
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