2 years ago

Why would a scientist only use observations to formulate a theory rather than follow the scientific method?

1 answer:

7 0

Answer: Observation is essential in science. Scientists use observation to collect and record data, which enables them to construct and then test theories

Explanation:

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Which action most likely causes large rocks to become smaller pieces of rock?

algol13

Answer:B

Explanation:

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3 years ago

Cells are differentiated when

Serjik [45]

Answer:

D I think.............

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3 years ago

4.5 × 1025 atoms of nickel equal how many moles?

sweet [91]

There should be 4.5 moles

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3 years ago

A compound contains 40 g of calcium, 12 g of carbon, and 48 g of oxygen. What is its empirical formula

Deffense [45]

Answer:

CaCO3

Explanation:

answer attached

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2 years ago

Balance the following chemical equation (with all steps)

WARRIOR [948]

Answer:

Balanced chemical equation:

2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂

Explanation:

Chemical equation:

Al + H₂SO₄ → Al₂(SO₄)₃ + H₂

Balanced chemical equation:

2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂

Steps:

Let balance the SO₄ first.

Al + 3H₂SO₄ → Al₂(SO₄)₃ + H₂

There are three H₂ on left so put the coefficient three on right too.

Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂

Two Al on right and one on left so we will put the coefficient two on left.

2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂

All atoms are correctly balanced.

3 0

3 years ago