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3 years ago

PLS ANSWER FAST WILL GIVE BRAINLY!!!!

Chemistry

2 answers:

castortr0y [4]3 years ago

7 0

False because the sugar is just changing it’s form

Grace [21]3 years ago

5 0

False. Because no matter how it’s mixed it’s still the same substances. Freeze it and it’s still coffee and sugar. Evaporate the water and it’s still coffee and sugar.

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Nuclear reactions occurring in the Sun _____. Select all that apply. generate light, generate heat, absorb a lot of energy, or f

ohaa [14]

In the sun nuclear reaction called proton-proton cycle occurs. During these processes four hydrogen atoms are combined in a series of reactions to form one Helium atom; this chain of reactions is coupled by release of energy in the form of gamma rays and other particles called neutrons. Therefore, i believe the appropriate answer would be, nuclear reaction fuse atoms of hydrogen to make helium atoms.

3 0

3 years ago

Read 2 more answers

Solve for it? show all work for me as well please ASAP!!

Katena32 [7]

Answer: The pressure will be 411 GH.

Explanation:

To calculate the final pressure of the system, we use the equation given by Gay Lussac Law. This law states that pressure of the gas is directly proportional to the temperature of the gas at constant volume

Mathematically,

$\frac{P_1}{T_1}=\frac{P_2}{T_2}$

where,

$P_1\text{ and }T_1$ are the initial pressure and temperature of the gas.

$P_2\text{ and }T_2$ are the final pressure and temperature of the gas.

We are given:

$P_1=570\\T_1=2.33\\P_2=?\\T_2=1.68$

Putting values in above equation, we get:

$\frac{570}{2.33}=\frac{P_2}{1.68}\\\\P_2=411$

Thus the pressure will be 411 GH.

8 0

3 years ago

An interaction between atoms that holds them together by reducing the potential energy of their electrons

Lemur [1.5K]

Answer:

Chemical bond

Explanation:

Chemical bond is refer to as the interaction existing between two or more atoms, ions or molecules that holds them together by decreasing the potential energy of their electrons. Chemical bond leads to the formation of chemical compounds. Chemical bond may occur as a result of the electrostatic force of attraction that exists between oppositely charged ions such as those in ionic bonds or when electrons are shared such as those in covalent bonds.

6 0

3 years ago

If you have 10,000 grams of a substance that decays with a half-life of 14 days, then how much will you have after 42 days?

Maru [420]

Answer:

1250

Explanation:

Used a half life calculator, put in the given variables, and the answer was the remaining quantity. Got it right on the test as well

8 0

3 years ago

each of the following reactions has been reported in the chemical literature. predict the product in each case, showing stereoch

poizon [28]

(a): This is an elimination reaction. The reaction proceeds in 3 steps; Step 1: Protonation of alcohol, step 2: Loss of leaving group, and step 3: Deprotonation to form an alkene. Elimination (E1) reaction dominates than substitution (SN1) reaction because the formed HSO4- anion is a poor nucleophile and tends not to add to the carbocation intermediate formed. Hence the product formed is I, is trans.

(b) This is a dihydroxylation of the alkenes reaction. A catalytic amount of OsO4 is used along with an oxidizing agent, which oxidizes the reduced osmium(VI) into osmium(VIII) to regenerate the catalyst. The reaction proceeds in 2 steps; Step 1: Cis addition of OsO4 to double bond and form 4 member cyclic osmate ester. Step 2: Hydrolysis of the intermediate to 1.2-diol. Hence the product formed is II, is cis.

(c) This is hydroboration - oxidation reaction. The reaction proceeds through the addition of H- on the more substituted carbon and BH2 on the less substituted carbon of the double bond. The reaction is a syn addition. Hence the product formed is III.

(d) This a reduction reaction where carboxylic acid (-COOH) is reduced to 1o alcohol (-CH2OH). Hence the formed product is IV.

Stereochemistry, a subdiscipline of chemistry, involves the take a look at the relative spatial association of atoms that form the shape of molecules and their manipulation.

The observation of stereochemistry specializes in stereoisomers, which by means of definition have an equal molecular method and series of bonded atoms (constitution), however, differ within the three-dimensional orientations of their atoms in space. for that reason, it's also referred to as 3-d chemistry three-dimensionality.

Learn more about Stereochemistry here:-brainly.com/question/13266152

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Disclaimer:- your question is incomplete, please see below for the complete question.

Each of the following reactions has been reported in the chemical literature. Predict the product in each case, showing stereochemistry where appropriate.

5 0

1 year ago