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3 years ago

7

What observations and inferences can you make from this picture?

2 answers:

Salsk061 [2.6K]3 years ago

6 0

I know they are fishing and there is an alligator in the lake. The alligator might grab the bait and attack the fishers.

Hope I helped!
Let me know if you need anything else!
~ Zoe

Liono4ka [1.6K]3 years ago

4 0

Answer:

Sample Response: The people are part of a softball team. They appear happy, they are showing the number one with their fingers, and they are holding a trophy. They probably won the softball league championship.

Explanation:

e2020

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Luis is helping his parents paint a border around the walls of a room. He uses a stencil to repeat the same design on each wall

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The answer to your question is d

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3 years ago

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At 25 oC, the rate constant for the first-order decomposition of a pesticide solution is 6.40 x 10-3 min-1. If the starting conc

Ira Lisetskai [31]

Answer:

$2.11\ * 10^{-2}$ is the correct answer to the given question.

Explanation:

Given k=6.40 x 10-3 min-1.

According to the first order reaction .

The concentration of time can be written as

$[\ A\ ]\ = \ [\ A_{0}\ ] * e \ ^\ {-kt}$

Here $[\ A\ ]_{0}$ = Initial concentration.

So $[\ A\ ]_{0}= 0.0314 M$

Putting this value into the above equation.

$0.0314 \ *\ e^{6.40 x 10^{-3} \ * \ 62.0 }$

=0.211 M

This can be written as

$=\ 2.11 *\ 10^{-2}$

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3 years ago

What is a type of radiation produced when the unstable nucleus of a radioactive element emits a helium nucleus?

mamaluj [8]

Es la respuesta C. Alpha radiation

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3 years ago

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How many milliliters of 0.258M NaOH are required to completely neutralize 2.00 g of acetic acid HC2H3O2?

madam [21]

Answer:

0.129 L = 129.0 mL.

Explanation:

NaOH neutralizes acetic acid (CH₃COOH) according to the balanced reaction:

<em>NaOH + CH₃COOH → CH₃COONa + H₂O. </em>

According to the balanced equation: 1.0 mole of NaOH will neutralize 1.0 mole of CH₃COOH.

<em>no. of moles of CH₃COOH = mass/molar mass </em>= (2.0 g)/(60 g/mol) = <em>0.033 mole. </em>

<em> </em>

For NaOH:

no. of moles = (0.258 mol/L)(V)

At neutralization: no. of moles of NaOH = no. of moles of CH₃COOH

∴ (0.258 mol/L)(V) = 0.033 mole

<em>∴ The volume of NaOH</em> = (0.033 mole)/(0.258 mol/L) = <em>0.129 L = 129.0 mL.</em>

8 0

4 years ago

Calculate the number of moles in the following: 2.8 X 10^24 atoms of Cl2

vova2212 [387]

Answer:

<h3>The answer is 4.65 moles</h3>

Explanation:

To find the number of moles given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question

N = 2.8 × 10²⁴ atoms of Cl2

So we have

$n = \frac{2.8 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 4.65116279069...$

We have the final answer as

<h3>4.65 moles</h3>

Hope this helps you

7 0

3 years ago