3 years ago

Helpe pls I will mark brainlest

Chemistry

1 answer:

olya-2409 [2.1K]3 years ago

4 0

Answer:

What is the question needing to be answered?

Explanation:

Usually with a scientific hypothesis, you ask the question in an if, then statement. For example: If it rains outside, then the ground will be wet. It's kind of like a cause and effect statement.

You might be interested in

A person riding a bike has a mass of 55kg. They are moving with a velocity of 2m/s. What is the Kinetic Energy of the person?

ZanzabumX [31]

KE=0.5 • mv2
KE is 110 Joules

8 0

3 years ago

True or false carbon-15 and nitrogen-15 are isotopes of each other

Alla [95]

Answer:

I would say false

Explanation:

8 0

3 years ago

Given:

galina1969 [7]

Answer: 4.74 moles

Explanation:

$2LiBr+Ba\rightarrow BaBr_2+2Li$

Moles of Ba= $\frac{\text {given mass}}{\text {molar mass}}$

Moles of Ba= $\frac{325g}{137g/mol}=2.37 moles$

According to given balanced equation,

1 mole of Barium gives 2 moles of Li

Thus 2.37 moles of Barium gives= $\frac{2}{1}\times 2.37=4.74 moles$

Thus 4.74 moles of lithium will be produced by 135 g of barium.

4 0

3 years ago

Read 2 more answers

Mixing vinegar and with baking soda produces carbon dioxide and water. Is this a chemical change or a physical change?

Sergeeva-Olga [200]

This is a simple chemical change due to what it produces and how it is added together. Hope this helps.

3 0

3 years ago

Read 2 more answers

At room temperature, a melting solid produces a whitish liquid. A laser beam shined through the liquid is unaffected and produce

lisabon 2012 [21]

The liquid is transparent

3 0

3 years ago

Helpe pls I will mark brainlest​

Helpe pls I will mark brainlest