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3 years ago

ASAP!!!!!INEED IT FAST PLS ILL MARK BRAINLIEST

Chemistry

1 answer:

Lera25 [3.4K]3 years ago

4 0

That’s B I’m good at chem

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What do non-metals do if they need 8 valence electrons and can't find a metal?

kati45 [8]

Answer:

sharing of electron

Explanation:

As seen in carbon. carbon has four electrons in his outermost shell and needs for electron by sharing of electrons it can gain it by another carbon

3 0

3 years ago

How many moles are in 153’pp grams of KClO3

katen-ka-za [31]

Answer:

n = 1.24 moles

Explanation:

Given that,

Mass = 153 grams

Molar mass of KClO₃ = 122.55 g/mol

We need to find the number of moles.

We know that,

No. of moles = given mass/molar mass

So,

$n=\dfrac{153}{122.55 }\\\\n=1.24$

So, there are 1.24 moles in 153 g of KClO₃.

4 0

3 years ago

CH4 + 2O2 —> 2H2O + CO2

Dovator [93]

Answer: 20 mol CH4 x 1CO2 / 1CH4 = 20mol CO2

Answer: 20mol CO2

Explanation:

4 0

3 years ago

What effect would increasing the amount of air surrounding the apple have on the apple ?

CaHeK987 [17]

Answer:

It has been suggested that climate change, which would generally lead to warmer winters in the Northeast, may make it difficult to produce some apple varieties in parts of the region. ... Greater variability in weather, such as warm periods followed by cold snaps in winter, can damage both flower buds and trees.

Explanation:

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3 years ago

An unknown rectangular substance measures 3.60cm high, 4.21cm long, and 1.17cm wide. If the mass is 21.3g what is this substance

tino4ka555 [31]

The rectangular substance measures 3.60cm high, 4.21cm long, and 1.17cm wide. If the mass is 21.3g substances density will be 1.20 centimeter cube.

<h3>What is density?</h3>

The density of any substance is the ratio of the mass of substance to the volume of the substance and the unit will be centimeter cube.

The volume of the substance will be 3.60cm high × 4.21cm long ×1.17cm wide = 17.7 milliliters.

density = mass of substance / volume of substance

Substituting the value in formula

Density = 21.3g / 17.7 milliliters.

Density = 1.20 centimeter cube.

Therefore, rectangular substance measures 3.60cm high, 4.21cm long, and 1.17cm wide. If the mass is 21.3g substances density will be 1.20 centimeter cube.

Learn more about density, here:

brainly.com/question/15164682

#SPJ1

4 0

2 years ago