3 years ago

Which of the following statements is true?

Chemistry

1 answer:

pashok25 [27]3 years ago

3 0

The answer is longitudinal waves more particles at right angles

You might be interested in

Please help me it's just one question!

sashaice [31]

Answer:

hope this help

Explanation:

brainliest pls

6 0

2 years ago

Can anyone explain enzymes in a simple way?

Sedaia [141]

Enzymes are biological catalysts which means they accelerate chemical reactions.
Hope this helps :)

4 0

2 years ago

A chemical reaction that is expected to form 325.0 gof product only forms 123.8 g of product. What is the percent yield of this

Tasya [4]

Answer:

$\boxed {\boxed {\sf A. \ 38.1 \%}}$

Explanation:

Percent yield is the ratio of the amount actually produced to how much could theoretically be produced. It is found using this formula:

$\% \ yield = \frac{actual \ yield}{theoretical \ yield} *100$

For this reaction, the theoretical or expected yield is 325.0 grams. The actual yield is 123.8 grams.

$\% \ yield = \frac{ 123.8 \ g }{325.0 \ g }*100$

Divide.

$\% \ yield = 0.380923077 *100$

$\% \ yield = 38.0923077$

Round to the nearest hundredth. The 9 in the hundredth place tells us to round the 0 to a 1 .

$\% \ yield \approx 38.1$

The percent yield is about <u>38.1%</u>

5 0

2 years ago

Read 2 more answers

Assuming that the half-life of Isotope Q is 7.5 minutes, what amount of an original

nalin [4]

I think b I am not so sure

4 0

2 years ago

Read 2 more answers

Which particles give the nucleus its positive charge?

Mnenie [13.5K]

Answer:

protons only

Explanation:

proton is present in the nucleus of atom as sub atomic particle ..

proton has + charge in the it's top as p+..

6 0

2 years ago