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2 years ago

Check the statements that are a part of the Early Atomic Theory. Check all of the boxes that apply

Chemistry

1 answer:

MariettaO [177]2 years ago

5 0

Answer:

B&C

Explanation:

Atoms combine in whole number ratios to form compounds.

and

Atoms cannot be created or destroyed during a chemical reaction.

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Heating chemicals is defined by the process of combustion. A. True B. False

padilas [110]

Answer: A. True

Explanation: Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat. The original substance is called the fuel, and the source of oxygen is called the oxidizer. ... During combustion, new chemical substances are created from the fuel and the oxidizer.

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3 years ago

A hardware salesman measures the mass of a box containing

sattari [20]

Step $1$

find the mass of a single washer

Divide the total mass by the number of washers

$\frac{0.4168}{1000} =0.0004168\ Kg$

$0.0004168kg=4.168*10^{-4} kg$

Step $2$

Convert kg to mg

we know that

$1 kg=1*10^{6} mg$

$4.168*10^{-4}*10^{6} =4.168*10^{2}mg=416.8 mg$

therefore

the answer is

$416.8 mg$

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3 years ago

Read 2 more answers

What is the Bo element plz help

Effectus [21]

There is no Bo element, however there is a B element which is Boron

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2 years ago

Read 2 more answers

Can spectrum colors be mixed

larisa86 [58]

Additive color mixing involves multiple sources of light with different colors in each source. Subtractive color mixing involves a single source of light with different colors absorbing various wavelengths of the color spectrum. Secondary colors of one system serve as the primary colors for the other.

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2 years ago

Find out no. of moles present is 72 gm of water?

Alona [7]

72g H2O x 1 mol H2O/18.02g H2O = 3.99 mol H2O

8 0

2 years ago