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3 years ago

What is the momentum of a car with a mass of 1,300 kg traveling north at a speed of 28 m/s?

Chemistry

2 answers:

wlad13 [49]3 years ago

6 0

Answer:

p = 36400 kg·m/s

Explanation:

p=mv

p= Momentum

m= mass (1300 kg)

v= 28

1300 × 28

= 36400 kg·m/s

Levart [38]3 years ago

3 0

Answer:

please está muy fácil por qué ya no se puede hacer nada mijo

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Which of the following statements is true about taste bud preferences?

Dafna1 [17]

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3 years ago

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4 years ago

Indicate which reactions are redox reactions. check all that apply. check all that apply. 2na(s)+cl2(g)→2nacl(s) cd(s)+pb2+(aq)→

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Redox reactions are those in which the oxidation numbers of the elements involved are changed.

Equation 1:

2Na(s) + Cl2(g) --> 2NaCl

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Equation 2:

Cd(s) + Pb+2(aq) --> Cd2+(aq) + Pb(s)

The oxidation numbers of Cd and Pb+2 in the reactant side are 0 and +2, respectively. They are, however, +2 and 0 in the product side. Hence, this is also a redox reaction.

Equation 3:

Pb(NO3)2(liq) + 2LiCl(aq) --> PbCl2(s) + 2LiNO3(aq)

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Equation 4:

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6 0

3 years ago

Which color of visible light has the shortest wavelength?

Otrada [13]

Answer:

Hi! Your answer should be (C.) violet

Explanation:

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3 years ago

Read 2 more answers

Suppose a sodium hydroxide solution was standardized against pure solid primary standard grade KHP. If 0.4798 g of KHP required

Readme [11.4K]

Answer:

The NaOH solution has a molarity of 0.052 M

Explanation:

Step 1: Data given

Mass of KHP = 0.4798 grams

Volume of NaOH= 45.22 mL = 0.04522 L

Molar mass of NaOH = 40 g/mol

Molar mass of KHP = 204.22 g/mol

Step 2: Calculate moles of KHP

Moles KHP = mass KHP / Molar mass KHP

Moles KHP = 0.4798 grams / 204.22 g/mol

Moles KHP = 0.00235 moles

Step 3: Calculate moles of NaOH

KHP here acts as a mono-acid so, the number of moles of NaOH = number of moles KHP = 0.00235 moles

Step 4: Calculate molarity of NaOH

Molarity NaOH = moles NaOH / volume NaOH

Molarity NaOH = 0.00235 moles / 0.04522 L

Molarity NaOH = 0.052 M

The NaOH solution has a molarity of 0.052 M

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4 years ago