All categories

3 years ago

Are protons and neutrons electrically charged

2 answers:

7 0

Protons are positively charged neutrons are neutrally charged amd electrons are negatively charged. Therefore only the protons in this instance are charged

xz_007 [3.2K]3 years ago

7 0

Answer:

yes

Explanation:

Protons have a positive charge and electrons have a negative charge

You might be interested in

Which of the following units would be the most appropriate for measuring the mass of a grain of rice? A. milligrams B. grams C.

Temka [501]

A, milligrams because rice is very small therefore you'd need to use a very small unit of measurement.

8 0

3 years ago

Read 2 more answers

How many moles are in 35.5 g of aluminum?

Blizzard [7]

Answer:

1.316 moles of Aluminum

Explanation:

The molar mass for Al is 26.98 g/mol

$\frac{35.5g}{26.98g/mol} =1.316 moles Al$

3 0

3 years ago

Which net ionic equation would match this description of a chemical reaction: When a

krok68 [10]

Answer:

$3Mg^{2+}(aq.)+2PO_{4}^{3-}(aq.)\rightarrow Mg_{3}(PO_{4})_{2}(s)$

Explanation:

$Mg(NO_{3})_{2}$ , $Na_{3}PO_{4}$ are strong electrolytes. Hence they are fully ionized in aqueous solution.

$Mg_{3}(PO_{4})_{2}$ is a sparingly soluble salt. Hence it remains undissociated in aqueous solution.

So, total ionic equation:

$3Mg^{2+}(aq.)+6NO_{3}^{-}(aq.)+6Na^{+}(aq.)+2PO_{4}^{3-}(aq.)\rightarrow Mg_{3}(PO_{4})_{2}(s)+6Na^{+}(aq.)+6NO_{3}^{-}(aq.)$

Net ionic equation is written by omitting spectator ions from total ionic equation.

Here, $Na^{+}$ and $NO_{3}^{-}$ ions are spectator ions as they remain present on both side of total ionic equation.

So, net ionic equation:

$3Mg^{2+}(aq.)+2PO_{4}^{3-}(aq.)\rightarrow Mg_{3}(PO_{4})_{2}(s)$

So, option (d) is correct.

6 0

3 years ago

Question 16 of 33

Shtirlitz [24]

I think the answer is A

5 0

3 years ago

A drug company is testing the effects of a new drug designed to prevent hair loss. Of the 2,000 people in the trial, 1,700 peopl

Anni [7]

Answer:

Explanation:

The correct answer would be that<u> the group being given the sugar pill is being used as the control group.</u>

In a typical experimental study, there are two groups of subjects:

1. The treatment or the experimental group

2. The control group

<em>The treatment group receives the treatment variable while the control group does not receive or is given a placebo. Thus, the control group act as the reference group for comparison basis. Any difference in the observation between the two groups would be attributed to the treatment variable.</em>

The correct option is, therefore, A.

5 0

3 years ago