3 years ago

Why did the vinegar erupt when I put the baking soda ?

Chemistry

1 answer:

tangare [24]3 years ago

3 0

When the chemicals combine, it creates a chemical reaction or "eruption"

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2. Iron has a density of 7.86 g/cm). A sample of an unknown metal is measured and found to be

alekssr [168]

The volume of sample = 2.25(1.5)(2.25) = 7.59375 cm3
Density = mass / volume
Density = 55.75 / 7.59375 = 7.34156 g/cm3

As the density of iron is 7.86 g/cm3 instead, it is not iron

3 0

3 years ago

How many protons and electrons do the following ion have?

GalinKa [24]

a) Number of protons = number of electron in the atom = atomic number

So it has 7 protons answer

N-3 has gained 3 electron so number of electrons + 7+3

= 10 answer

8 0

4 years ago

ILL GIVE BRAINLISTS!!!!!!

8_murik_8 [283]

I think A would be the correct answer to this question.

4 0

3 years ago

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A ball is thrown straight up into the air with a speed of 21 m/s. If the ball has a mass of 0.1 kg, how high does the ball go? A

Grace [21]

Answer:

answer = 22.5m

Explanation:

using

$s = \frac{ {v}^{2} - {4}^{2} }{2a}$

s= (0²-21²)/2(-9.8)

s= -441/19.6

s= 22.5m

do consider marking as Brainliest if this helped!!

5 0

3 years ago

Carbon-14 naturally decay to carbon-_____. 13 12 10 15

lorasvet [3.4K]

Answer:

13 would be correct

Explanation:

4 0

3 years ago

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