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3 years ago

Steps of scientific inquiry?

2 answers:

8 0

1. Figure out a problem
2. Research
3. Hypothesis
4. Experiment
5. Analyze results
6. Conclusion
7. Communicate your results

Hope This Helps. :D <span />

Zinaida [17]3 years ago

5 0

1 Ask a question related with your topic
2 Research data of the topic
3 Construct logical Hypothesis
4 Test your Hypothesis to prove if your hypothesis was correct
5 Analyze your data and draw a Conclusion
6 Communicate your results to the science community

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Write the oxidation number for the following elements: for brainliest answer

ollegr [7]

Explanation:

Here's an oxidation chart to help

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3 years ago

3. Fill in: Name the organelle or organelles that perform each of the following functions.

Mekhanik [1.2K]

A. Chloroplasts

B. The cell wall and the vacuole

C. Vacuoles

D. The mitochondrion

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3 years ago

If the half life of iridium-182 is 15 years, how much of a 3 gram sample is left after 2 half-lives?

padilas [110]

Answer:

D. 0.75 grams

Explanation:

The data given on the iridium 182 are;

The half life of the iridium 182, $t_{(1/2)}$ = 15 years

The mass of the sample of iridium, N₀ = 3 grams

The amount left, N(t) after two half lives is given as follows;

$N(t) = N_0 \left (\dfrac{1}{2} \right )^{\dfrac{t}{t_{1/2}} }$

For two half lives, t = 2 × $t_{(1/2)}$

∴ t = 2 × 15 = 30

$\dfrac{t}{t_{(1/2)}} = \dfrac{30}{15} = 2$

$\therefore N(t) = 3 \times\left (\dfrac{1}{2} \right )^2 = 0.75$

∴ The amount left, N(t) = 0.75 grams

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3 years ago

In CF4 and NF3, the ___electron groups on the central C and N atoms have a ___ arrangement. The shapes of the molecules are dete

enyata [817]

Answer:

Explanation:

In CF4 and NF3, the valence electron groups on the central C and N atoms have a tetrahedral arrangement. The shapes of the molecules are determined by the number of bonding and nonbonding of electrons: since CF4 has four bonded atom(s) and zero lone pair(s) of electrons, the shape is tetrahedral.

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4 years ago

Read 2 more answers

Sedimentary rocks are a formed below earths surface as magma b a type of foliated igneous rock c formed by great heat d formed f

Alekssandra [29.7K]

Its either A or C hope one of them helps

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4 years ago