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3 years ago

Boat A and Boat B have the same mass. Boat A's velocity is three times greater than that of Boat B. Compared to the

Chemistry

1 answer:

sveticcg [70]3 years ago

6 0

Answer:nine times as much

Explanation:

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At the center of every atom lies a small, dense ____________ that is positively charged

Sedbober [7]

At the center of every atom lies a small, dense "nucleus" that is positively charged.

Atom is the smallest unit of matter. It is made up of electrons, protons and neutrons. Electrons are negatively charged particles that are found scattered in different energy levels outside the nucleus. Protons are positively charged particles present inside the nucleus. Neutrons do not carry charge and found inside the nucleus. Thus, protons and neutrons make up the nucleus of an atom. Since, protons are positively charged and neutrons are uncharged particles, the charge of nucleus becomes positive.

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3 years ago

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At room temperature, a melting solid produces a whitish liquid. A laser beam shined through the liquid is unaffected and produce

lisabon 2012 [21]

The liquid is transparent

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3 years ago

If m = 45g and V = 15ml, what is D in g/ml?

ch4aika [34]

Answer:

3 g/mL

Explanation:

We know that the density of an object can be measured by dividing its mass (g) to its volume (mL).

Formula

D=m/v

Given data:

Mass= 45 g

Volume= 15 mL

Now we will put the values in formula:

D=45 g/ 15 mL= 3 g/mL

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4 years ago

Can you help me pretty please !!!

Vika [28.1K]

The answer is A it depends on the distance

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3 years ago

For the energy diagram of the chemical reaction depicted here, which statement is the best conclusion?

34kurt

The reaction shown here is an exothermic reaction.

<h3>What is an exothermic reaction?</h3>

An exothermic reaction is one in which the energy of the reactants is greater than the energy of the products. This implies that energy is given out in the process. Whether a reaction is endothermic or exothermic shows in the nature of the reaction profile curve.

For an endothermic reaction, the part of the diagram that represents the energy of the products is higher than the part that represents the energy of the reactants. This is clear from the image attached here.

If we look at the reaction graph very well, we will observe that the energy of the reactants is far above that of the products. Thus it follows that the reaction shown here is an exothermic reaction.

Learn more about exothermic reaction:brainly.com/question/15765092

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2 years ago