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3 years ago

Your little sister asks you a scientific question: "Does chocolate milk come from

Chemistry

1 answer:

il63 [147K]3 years ago

5 0

Answer:

The given statements are not effective hypotheses

Explanation:

Given that,

Your little sister asks you a scientific question:

"Does chocolate milk come from brown cows?"

We know that,

The chocolate milk does not come from brown cows.

We need to find the given statement is effective hypotheses

According to given statement,

The following statements are not effective hypotheses because all cows give the white milk.

So, we can say that, we mix the chocolate powder in the milk then we get the chocolate milk.

Hence, The given statements are not effective hypotheses

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Specify the functional groups by letters (A to G) as given in the list below. Use only one letter per box. If there are fewer th

Oksanka [162]

Answer:

(b) amino group

e) carboxyl group

Explanation:

The functional group in an organic compound distinguishes it from other compounds. It is usually the site where chemical reactions takes place.

CH₃-HC(NH₂)-COOH

There are two functional groups in this organic compoud:

The NH₂ group is called the amino group
The COOH is a carboxyl group

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3 years ago

Sulfur oxides Carbon monoxides Chlorofluorocarbons (CFCs)Nitrates are responsible for the hole in the ozone layer.

svp [43]

The best answer for the question above would be the chloroflourocarbons or the CFCs. These chloroflourocarbons or CFCs are the ones responsible for the depletion of the ozone - which leads to leaving a hole in its layer. These gases eat out the ozone layer and allows harmful UV rays of the sun to come in the Earth.

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4 years ago

How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL (about 6 oz) of coffee at 95 °C so

Svetach [21]

Answer:

V H2O = 170.270 mL

Explanation:

QH2O ( heat gained) = Qcoffe ( heat ceded)

⇒ Q = mCΔT

∴ m: mass (g)

∴ C: specific heat

assuming:

δ H2O = δ Coffe = 1.00 g/mL
C H2O = C coffe = 4.186 J/°C.g....from literature

⇒ Q coffe = (mcoffe)(C coffe)(60 - 95)

∴ m coffe = (180mL)(1.00 g/mL) = 180 g coffe

⇒ Q = (180g)(4.186 J/°C.g)(-35°C) = - 26371.8 J

⇒ Q H2O = 26371.8 J = (m)(4.186 J/°C.g)(60 - 23)

⇒ (26371.8 J)/(154.882 J/g) = m H2O

⇒ m H2O = 170.270 g

⇒ V H2O = (170.270 g)(mL/1.00g) = 170.270 mL

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3 years ago

Calculate the volume in mL of 1 mole of pure ethanol

Tamiku [17]

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g*(ml/g)=ml

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4 years ago

In chemical reactions, what does the principle of conservation of mass mean?

Scilla [17]

I think It means that any balanced equation is conserved. Meaning that the equation is equal. The law states matter can’t be created or destroyed. In chemical reactions the mass of an element is the same before and after the product. There’s two sides two an equation the reactants side and the product’s side. Hope this helps.

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3 years ago

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