3 years ago

Which reaction follows the law of conservation of matter?

1 answer:

6 0

It's the law! Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants.

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Lanthanium found in the......... period

Gnesinka [82]

I'm preatty sure it is in the periodic table xxx

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3 years ago

Which method is used to make the salt copper(II) sulfate?

Tanzania [10]

Answer:

Its B. Dilute acid + carbonate

Explanation:

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2 years ago

85g=kg?<br> Unit conversion.

Paraphin [41]

Answer:

0.085 kg

Explanation:

1 g=0.001 kg OR 1 kg=1000 g

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2 years ago

Urgent!! A chemist measured 5.2 g copper(II) bromide tetrahydrate (CuBr2•4(H2O)). How many moles were measured out? Answer in un

bezimeni [28]

The moles which were measured out is calculated using the following formula

moles = mass/molar mass

molar mass of CuBr2.4H20 = 63.5 Cu + ( 2 x79.9) br + ( 18 x4_) h20 = 295.3 g/mol

moles is therefore= 5.2 g/ 295.3 g/mol= 0.0176 moles

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2 years ago

Read 2 more answers

dolphi86 [110]

Answer: D. transverse

Explanation:

Light is a transverse wave, while sound is a longitudinal wave.

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2 years ago