PHYSICS HIGH SCHOOL

Which sentence contains italicized words that are used as an infinitive phrase?a. Kelly went to the grocery store.
b. Tom went there for some flour.
c. Mark wanted to go, but not today.
d. Jane parked her car behind a truck. ?

Answers

Answer 1
Answer:
Thanks to the mechanics of Brainly, there are no italicized words.

The only infinitive phrase I see on the list is "to go" in choice-'c' .
Answer 2
Answer:

c. Mark wanted to go, but not today.

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In science, theories tend to be ______________________ than hypotheses. Answers: A) more speculative B) more empirical C) less scientific D) more experimental E) broader in scope

Answers

Answer:

More experimental.

Explanation:

A hypothesis is formulated on the basis of some observed, but unexplained behavior.  It is usually preceded by an exclamation from the researcher of "What the heck?  Did you see that?  It went up and turned blue, when it should have gone sideways and turned red."

The observed behavior was unexpected, so the researcher wants to know why.  The first place to start is with an hypothesis:  an explanation of what might be happening.  It must be a "testable" hypothesis - an explanation that provides an avenue for testing whether the hypothesis may contain some truth.  E.g., the lab tech created sufficient momentum in the sample to make it react when he/she moved it from the table to the cabinet.

This can be tested.  Just do the same experiment but control movement of the sample.  If the reaction does NOT occur under the new conditions, then one might advace the observation as a theory.  Ni=ot proven, but the data are consistent with the hypothesis.  A theory is based on some level of experimental results, to move it up from an hypothesis.

Ammonia is a weak base because produce ____ ion in solution?

Answers

ammonia is a weak base  ( electrolyte) because ammonia reacts with water to produce ammonium and hydroxide ions. When hydroxide ion reacts with ammonium, it results to water and ammonia. it only proves that ammonia is rather a base because of its acceptance of hydrogen ion from water.

Ammonia is a weak base because it produces hydroxide (OH-) ions in solution.

Why is ammonia a weak acid?

Ammonia is a weak base because it produces hydroxide ions (OH-) in solution.

When ammonia dissolves in water, it accepts a proton from water, forming the ammonium ion (NH4+), and leaves hydroxide ions behind. This partial dissociation results in a small concentration of hydroxide ions, causing the solution to be slightly basic.

Unlike strong bases, which fully dissociate and release a large number of hydroxide ions, ammonia's limited ability to produce hydroxide ions makes it a weak base.

More on ammonia can be found here:brainly.com/question/29519032

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How many electrons does nitrogen (N) need to gain to have a stable outer electron shell?

Answers

it needs 3 electrons to have it stabled

The ability of an apple to change color when exposed to air is chemical or physical

Answers

The ability of an apple to change color when exposed to air represents an example of a chemical change.

What is a Chemical change?

A chemical change may be defined as a type of change of materials into another form or new materials with different properties, and one or more than one new substance is formed spontaneously.

The change of color of the apple into brown when it is exposed to air is a chemical change. When you observed the color of an apple is to be brown, you are producing a chemical change. This involves the rearrangement of atoms in one or more substances resulting in a change in their chemical properties or composition.

Therefore, the ability of an apple to change color when exposed to air represents an example of a chemical change.

To learn more about Chemical change, refer to the link:

brainly.com/question/1222323

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An apple has the ability to change color when exposed to air is a chemical property.

An unbalanced force of 25 N, E, is applied to a 12-kg mass. What is the acceleration given to the mass?

Answers

Newton's second law states: F=m*a

F stands for force
m stands for mass
a stands for acceleration

Get a alone.

(F)/(m)=a or a=(F)/(m)

Plug in the values you have.

a=(25N)/(12kg)

This gives:

a = 2.5(m)/(s^2)E

A 15 cm3 block of gold weighs 2.8 N. It is carefully submerged in a tank of mercury. One cm3 of mercury weighs 0.13 N. a. Will the mercury be displaced by the gold?
b. Will the gold sink or float in the mercury?

Answers

The density of gold is  2.8 N / 15 = 0.18 units
The density of mercury is 0.13/1 = 0.13 units

Since the density of gold is more than density of mercury, it will sink.
Since the gold will sink, it will displace mercury, but less than its own volume
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